quality assurance encourages for problem solving and quality improvement by

• Open access
• Published: 19 April 2024

A scoping review of continuous quality improvement in healthcare system: conceptualization, models and tools, barriers and facilitators, and impact

• Aklilu Endalamaw 1 , 2 ,
• Resham B Khatri 1 , 3 ,
• Tesfaye Setegn Mengistu 1 , 2 ,
• Daniel Erku 1 , 4 , 5 ,
• Eskinder Wolka 6 ,
• Anteneh Zewdie 6 &
• Yibeltal Assefa 1  

BMC Health Services Research volume  24 , Article number:  487 ( 2024 ) Cite this article

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The growing adoption of continuous quality improvement (CQI) initiatives in healthcare has generated a surge in research interest to gain a deeper understanding of CQI. However, comprehensive evidence regarding the diverse facets of CQI in healthcare has been limited. Our review sought to comprehensively grasp the conceptualization and principles of CQI, explore existing models and tools, analyze barriers and facilitators, and investigate its overall impacts.

This qualitative scoping review was conducted using Arksey and O’Malley’s methodological framework. We searched articles in PubMed, Web of Science, Scopus, and EMBASE databases. In addition, we accessed articles from Google Scholar. We used mixed-method analysis, including qualitative content analysis and quantitative descriptive for quantitative findings to summarize findings and PRISMA extension for scoping reviews (PRISMA-ScR) framework to report the overall works.

A total of 87 articles, which covered 14 CQI models, were included in the review. While 19 tools were used for CQI models and initiatives, Plan-Do-Study/Check-Act cycle was the commonly employed model to understand the CQI implementation process. The main reported purposes of using CQI, as its positive impact, are to improve the structure of the health system (e.g., leadership, health workforce, health technology use, supplies, and costs), enhance healthcare delivery processes and outputs (e.g., care coordination and linkages, satisfaction, accessibility, continuity of care, safety, and efficiency), and improve treatment outcome (reduce morbidity and mortality). The implementation of CQI is not without challenges. There are cultural (i.e., resistance/reluctance to quality-focused culture and fear of blame or punishment), technical, structural (related to organizational structure, processes, and systems), and strategic (inadequate planning and inappropriate goals) related barriers that were commonly reported during the implementation of CQI.

Conclusions

Implementing CQI initiatives necessitates thoroughly comprehending key principles such as teamwork and timeline. To effectively address challenges, it’s crucial to identify obstacles and implement optimal interventions proactively. Healthcare professionals and leaders need to be mentally equipped and cognizant of the significant role CQI initiatives play in achieving purposes for quality of care.

Peer Review reports

Continuous quality improvement (CQI) initiative is a crucial initiative aimed at enhancing quality in the health system that has gradually been adopted in the healthcare industry. In the early 20th century, Shewhart laid the foundation for quality improvement by describing three essential steps for process improvement: specification, production, and inspection [ 1 , 2 ]. Then, Deming expanded Shewhart’s three-step model into ‘plan, do, study/check, and act’ (PDSA or PDCA) cycle, which was applied to management practices in Japan in the 1950s [ 3 ] and was gradually translated into the health system. In 1991, Kuperman applied a CQI approach to healthcare, comprising selecting a process to be improved, assembling a team of expert clinicians that understands the process and the outcomes, determining key steps in the process and expected outcomes, collecting data that measure the key process steps and outcomes, and providing data feedback to the practitioners [ 4 ]. These philosophies have served as the baseline for the foundation of principles for continuous improvement [ 5 ].

Continuous quality improvement fosters a culture of continuous learning, innovation, and improvement. It encourages proactive identification and resolution of problems, promotes employee engagement and empowerment, encourages trust and respect, and aims for better quality of care [ 6 , 7 ]. These characteristics drive the interaction of CQI with other quality improvement projects, such as quality assurance and total quality management [ 8 ]. Quality assurance primarily focuses on identifying deviations or errors through inspections, audits, and formal reviews, often settling for what is considered ‘good enough’, rather than pursuing the highest possible standards [ 9 , 10 ], while total quality management is implemented as the management philosophy and system to improve all aspects of an organization continuously [ 11 ].

Continuous quality improvement has been implemented to provide quality care. However, providing effective healthcare is a complicated and complex task in achieving the desired health outcomes and the overall well-being of individuals and populations. It necessitates tackling issues, including access, patient safety, medical advances, care coordination, patient-centered care, and quality monitoring [ 12 , 13 ], rooted long ago. It is assumed that the history of quality improvement in healthcare started in 1854 when Florence Nightingale introduced quality improvement documentation [ 14 ]. Over the passing decades, Donabedian introduced structure, processes, and outcomes as quality of care components in 1966 [ 15 ]. More comprehensively, the Institute of Medicine in the United States of America (USA) has identified effectiveness, efficiency, equity, patient-centredness, safety, and timeliness as the components of quality of care [ 16 ]. Moreover, quality of care has recently been considered an integral part of universal health coverage (UHC) [ 17 ], which requires initiatives to mobilise essential inputs [ 18 ].

While the overall objective of CQI in health system is to enhance the quality of care, it is important to note that the purposes and principles of CQI can vary across different contexts [ 19 , 20 ]. This variation has sparked growing research interest. For instance, a review of CQI approaches for capacity building addressed its role in health workforce development [ 21 ]. Another systematic review, based on random-controlled design studies, assessed the effectiveness of CQI using training as an intervention and the PDSA model [ 22 ]. As a research gap, the former review was not directly related to the comprehensive elements of quality of care, while the latter focused solely on the impact of training using the PDSA model, among other potential models. Additionally, a review conducted in 2015 aimed to identify barriers and facilitators of CQI in Canadian contexts [ 23 ]. However, all these reviews presented different perspectives and investigated distinct outcomes. This suggests that there is still much to explore in terms of comprehensively understanding the various aspects of CQI initiatives in healthcare.

As a result, we conducted a scoping review to address several aspects of CQI. Scoping reviews serve as a valuable tool for systematically mapping the existing literature on a specific topic. They are instrumental when dealing with heterogeneous or complex bodies of research. Scoping reviews provide a comprehensive overview by summarizing and disseminating findings across multiple studies, even when evidence varies significantly [ 24 ]. In our specific scoping review, we included various types of literature, including systematic reviews, to enhance our understanding of CQI.

This scoping review examined how CQI is conceptualized and measured and investigated models and tools for its application while identifying implementation challenges and facilitators. It also analyzed the purposes and impact of CQI on the health systems, providing valuable insights for enhancing healthcare quality.

Protocol registration and results reporting

Protocol registration for this scoping review was not conducted. Arksey and O’Malley’s methodological framework was utilized to conduct this scoping review [ 25 ]. The scoping review procedures start by defining the research questions, identifying relevant literature, selecting articles, extracting data, and summarizing the results. The review findings are reported using the PRISMA extension for a scoping review (PRISMA-ScR) [ 26 ]. McGowan and colleagues also advised researchers to report findings from scoping reviews using PRISMA-ScR [ 27 ].

Defining the research problems

This review aims to comprehensively explore the conceptualization, models, tools, barriers, facilitators, and impacts of CQI within the healthcare system worldwide. Specifically, we address the following research questions: (1) How has CQI been defined across various contexts? (2) What are the diverse approaches to implementing CQI in healthcare settings? (3) Which tools are commonly employed for CQI implementation ? (4) What barriers hinder and facilitators support successful CQI initiatives? and (5) What effects CQI initiatives have on the overall care quality?

Information source and search strategy

We conducted the search in PubMed, Web of Science, Scopus, and EMBASE databases, and the Google Scholar search engine. The search terms were selected based on three main distinct concepts. One group was CQI-related terms. The second group included terms related to the purpose for which CQI has been implemented, and the third group included processes and impact. These terms were selected based on the Donabedian framework of structure, process, and outcome [ 28 ]. Additionally, the detailed keywords were recruited from the primary health framework, which has described lists of dimensions under process, output, outcome, and health system goals of any intervention for health [ 29 ]. The detailed search strategy is presented in the Supplementary file 1 (Search strategy). The search for articles was initiated on August 12, 2023, and the last search was conducted on September 01, 2023.

Eligibility criteria and article selection

Based on the scoping review’s population, concept, and context frameworks [ 30 ], the population included any patients or clients. Additionally, the concepts explored in the review encompassed definitions, implementation, models, tools, barriers, facilitators, and impacts of CQI. Furthermore, the review considered contexts at any level of health systems. We included articles if they reported results of qualitative or quantitative empirical study, case studies, analytic or descriptive synthesis, any review, and other written documents, were published in peer-reviewed journals, and were designed to address at least one of the identified research questions or one of the identified implementation outcomes or their synonymous taxonomy as described in the search strategy. Based on additional contexts, we included articles published in English without geographic and time limitations. We excluded articles with abstracts only, conference abstracts, letters to editors, commentators, and corrections.

We exported all citations to EndNote x20 to remove duplicates and screen relevant articles. The article selection process includes automatic duplicate removal by using EndNote x20, unmatched title and abstract removal, citation and abstract-only materials removal, and full-text assessment. The article selection process was mainly conducted by the first author (AE) and reported to the team during the weekly meetings. The first author encountered papers that caused confusion regarding whether to include or exclude them and discussed them with the last author (YA). Then, decisions were ultimately made. Whenever disagreements happened, they were resolved by discussion and reconsideration of the review questions in relation to the written documents of the article. Further statistical analysis, such as calculating Kappa, was not performed to determine article inclusion or exclusion.

Data extraction and data items

We extracted first author, publication year, country, settings, health problem, the purpose of the study, study design, types of intervention if applicable, CQI approaches/steps if applicable, CQI tools and procedures if applicable, and main findings using a customized Microsoft Excel form.

Summarizing and reporting the results

The main findings were summarized and described based on the main themes, including concepts under conceptualizing, principles, teams, timelines, models, tools, barriers, facilitators, and impacts of CQI. Results-based convergent synthesis, achieved through mixed-method analysis, involved content analysis to identify the thematic presentation of findings. Additionally, a narrative description was used for quantitative findings, aligning them with the appropriate theme. The authors meticulously reviewed the primary findings from each included material and contextualized these findings concerning the main themes1. This approach provides a comprehensive understanding of complex interventions and health systems, acknowledging quantitative and qualitative evidence.

Search results

A total of 11,251 documents were identified from various databases: SCOPUS ( n  = 4,339), PubMed ( n  = 2,893), Web of Science ( n  = 225), EMBASE ( n  = 3,651), and Google Scholar ( n  = 143). After removing duplicates ( n  = 5,061), 6,190 articles were evaluated by title and abstract. Subsequently, 208 articles were assessed for full-text eligibility. Following the eligibility criteria, 121 articles were excluded, leaving 87 included in the current review (Fig.  1 ).

Article selection process

Operationalizing continuous quality improvement

Continuous Quality Improvement (CQI) is operationalized as a cyclic process that requires commitment to implementation, teamwork, time allocation, and celebrating successes and failures.

CQI is a cyclic ongoing process that is followed reflexive, analytical and iterative steps, including identifying gaps, generating data, developing and implementing action plans, evaluating performance, providing feedback to implementers and leaders, and proposing necessary adjustments [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 ].

CQI requires committing to the philosophy, involving continuous improvement [ 19 , 38 ], establishing a mission statement [ 37 ], and understanding quality definition [ 19 ].

CQI involves a wide range of patient-oriented measures and performance indicators, specifically satisfying internal and external customers, developing quality assurance, adopting common quality measures, and selecting process measures [ 8 , 19 , 35 , 36 , 37 , 39 , 40 ].

CQI requires celebrating success and failure without personalization, leading each team member to develop error-free attitudes [ 19 ]. Success and failure are related to underlying organizational processes and systems as causes of failure rather than blaming individuals [ 8 ] because CQI is process-focused based on collaborative, data-driven, responsive, rigorous and problem-solving statistical analysis [ 8 , 19 , 38 ]. Furthermore, a gap or failure opens another opportunity for establishing a data-driven learning organization [ 41 ].

CQI cannot be implemented without a CQI team [ 8 , 19 , 37 , 39 , 42 , 43 , 44 , 45 , 46 ]. A CQI team comprises individuals from various disciplines, often comprising a team leader, a subject matter expert (physician or other healthcare provider), a data analyst, a facilitator, frontline staff, and stakeholders [ 39 , 43 , 47 , 48 , 49 ]. It is also important to note that inviting stakeholders or partners as part of the CQI support intervention is crucial [ 19 , 38 , 48 ].

The timeline is another distinct feature of CQI because the results of CQI vary based on the implementation duration of each cycle [ 35 ]. There is no specific time limit for CQI implementation, although there is a general consensus that a cycle of CQI should be relatively short [ 35 ]. For instance, a CQI implementation took 2 months [ 42 ], 4 months [ 50 ], 9 months [ 51 , 52 ], 12 months [ 53 , 54 , 55 ], and one year and 5 months [ 49 ] duration to achieve the desired positive outcome, while bi-weekly [ 47 ] and monthly data reviews and analyses [ 44 , 48 , 56 ], and activities over 3 months [ 57 ] have also resulted in a positive outcome.

Continuous quality improvement models and tools

There have been several models are utilized. The Plan-Do-Study/Check-Act cycle is a stepwise process involving project initiation, situation analysis, root cause identification, solution generation and selection, implementation, result evaluation, standardization, and future planning [ 7 , 36 , 37 , 45 , 47 , 48 , 49 , 50 , 51 , 53 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 ]. The FOCUS-PDCA cycle enhances the PDCA process by adding steps to find and improve a process (F), organize a knowledgeable team (O), clarify the process (C), understand variations (U), and select improvements (S) [ 55 , 71 , 72 , 73 ]. The FADE cycle involves identifying a problem (Focus), understanding it through data analysis (Analyze), devising solutions (Develop), and implementing the plan (Execute) [ 74 ]. The Logic Framework involves brainstorming to identify improvement areas, conducting root cause analysis to develop a problem tree, logically reasoning to create an objective tree, formulating the framework, and executing improvement projects [ 75 ]. Breakthrough series approach requires CQI teams to meet in quarterly collaborative learning sessions, share learning experiences, and continue discussion by telephone and cross-site visits to strengthen learning and idea exchange [ 47 ]. Another CQI model is the Lean approach, which has been conducted with Kaizen principles [ 52 ], 5 S principles, and the Six Sigma model. The 5 S (Sort, Set/Straighten, Shine, Standardize, Sustain) systematically organises and improves the workplace, focusing on sorting, setting order, shining, standardizing, and sustaining the improvement [ 54 , 76 ]. Kaizen principles guide CQI by advocating for continuous improvement, valuing all ideas, solving problems, focusing on practical, low-cost improvements, using data to drive change, acknowledging process defects, reducing variability and waste, recognizing every interaction as a customer-supplier relationship, empowering workers, responding to all ideas, and maintaining a disciplined workplace [ 77 ]. Lean Six Sigma, a CQI model, applies the DMAIC methodology, which involves defining (D) and measuring the problem (M), analyzing root causes (A), improving by finding solutions (I), and controlling by assessing process stability (C) [ 78 , 79 ]. The 5 C-cyclic model (consultation, collection, consideration, collaboration, and celebration), the first CQI framework for volunteer dental services in Aboriginal communities, ensures quality care based on community needs [ 80 ]. One study used meetings involving activities such as reviewing objectives, assigning roles, discussing the agenda, completing tasks, retaining key outputs, planning future steps, and evaluating the meeting’s effectiveness [ 81 ].

Various tools are involved in the implementation or evaluation of CQI initiatives: checklists [ 53 , 82 ], flowcharts [ 81 , 82 , 83 ], cause-and-effect diagrams (fishbone or Ishikawa diagrams) [ 60 , 62 , 79 , 81 , 82 ], fuzzy Pareto diagram [ 82 ], process maps [ 60 ], time series charts [ 48 ], why-why analysis [ 79 ], affinity diagrams and multivoting [ 81 ], and run chart [ 47 , 48 , 51 , 60 , 84 ], and others mentioned in the table (Table  1 ).

Barriers and facilitators of continuous quality improvement implementation

Implementing CQI initiatives is determined by various barriers and facilitators, which can be thematized into four dimensions. These dimensions are cultural, technical, structural, and strategic dimensions.

Continuous quality improvement initiatives face various cultural, strategic, technical, and structural barriers. Cultural dimension barriers involve resistance to change (e.g., not accepting online technology), lack of quality-focused culture, staff reporting apprehensiveness, and fear of blame or punishment [ 36 , 41 , 85 , 86 ]. The technical dimension barriers of CQI can include various factors that hinder the effective implementation and execution of CQI processes [ 36 , 86 , 87 , 88 , 89 ]. Structural dimension barriers of CQI arise from the organization structure, process, and systems that can impede the effective implementation and sustainability of CQI [ 36 , 85 , 86 , 87 , 88 ]. Strategic dimension barriers are, for example, the inability to select proper CQI goals and failure to integrate CQI into organizational planning and goals [ 36 , 85 , 86 , 87 , 88 , 90 ].

Facilitators are also grouped to cultural, structural, technical, and strategic dimensions to provide solutions to CQI barriers. Cultural challenges were addressed by developing a group culture to CQI and other rewards [ 39 , 41 , 80 , 85 , 86 , 87 , 90 , 91 , 92 ]. Technical facilitators are pivotal to improving technical barriers [ 39 , 42 , 53 , 69 , 86 , 90 , 91 ]. Structural-related facilitators are related to improving communication, infrastructure, and systems [ 86 , 92 , 93 ]. Strategic dimension facilitators include strengthening leadership and improving decision-making skills [ 43 , 53 , 67 , 86 , 87 , 92 , 94 , 95 ] (Table  2 ).

Impact of continuous quality improvement

Continuous quality improvement initiatives can significantly impact the quality of healthcare in a wide range of health areas, focusing on improving structure, the health service delivery process and improving client wellbeing and reducing mortality.

Structure components

These are health leadership, financing, workforce, technology, and equipment and supplies. CQI has improved planning, monitoring and evaluation [ 48 , 53 ], and leadership and planning [ 48 ], indicating improvement in leadership perspectives. Implementing CQI in primary health care (PHC) settings has shown potential for maintaining or reducing operation costs [ 67 ]. Findings from another study indicate that the costs associated with implementing CQI interventions per facility ranged from approximately $2,000 to $10,500 per year, with an average cost of approximately $10 to $60 per admitted client [ 57 ]. However, based on model predictions, the average cost savings after implementing CQI were estimated to be $5430 [ 31 ]. CQI can also be applied to health workforce development [ 32 ]. CQI in the institutional system improved medical education [ 66 , 96 , 97 ], human resources management [ 53 ], motivated staffs [ 76 ], and increased staff health awareness [ 69 ], while concerns raised about CQI impartiality, independence, and public accountability [ 96 ]. Regarding health technology, CQI also improved registration and documentation [ 48 , 53 , 98 ]. Furthermore, the CQI initiatives increased cleanliness [ 54 ] and improved logistics, supplies, and equipment [ 48 , 53 , 68 ].

Process and output components

The process component focuses on the activities and actions involved in delivering healthcare services.

Service delivery

CQI interventions improved service delivery [ 53 , 56 , 99 ], particularly a significant 18% increase in the overall quality of service performance [ 48 ], improved patient counselling, adherence to appropriate procedures, and infection prevention [ 48 , 68 ], and optimised workflow [ 52 ].

Coordination and collaboration

CQI initiatives improved coordination and collaboration through collecting and analysing data, onsite technical support, training, supportive supervision [ 53 ] and facilitating linkages between work processes and a quality control group [ 65 ].

Patient satisfaction

The CQI initiatives increased patient satisfaction and improved quality of life by optimizing care quality management, improving the quality of clinical nursing, reducing nursing defects and enhancing the wellbeing of clients [ 54 , 76 , 100 ], although CQI was not associated with changes in adolescent and young adults’ satisfaction [ 51 ].

CQI initiatives reduced medication error reports from 16 to 6 [ 101 ], and it significantly reduced the administration of inappropriate prophylactic antibiotics [ 44 ], decreased errors in inpatient care [ 52 ], decreased the overall episiotomy rate from 44.5 to 33.3% [ 83 ], reduced the overall incidence of unplanned endotracheal extubation [ 102 ], improving appropriate use of computed tomography angiography [ 103 ], and appropriate diagnosis and treatment selection [ 47 ].

Continuity of care

CQI initiatives effectively improve continuity of care by improving client and physician interaction. For instance, provider continuity levels showed a 64% increase [ 55 ]. Modifying electronic medical record templates, scheduling, staff and parental education, standardization of work processes, and birth to 1-year age-specific incentives in post-natal follow-up care increased continuity of care to 74% in 2018 compared to baseline 13% in 2012 [ 84 ].

The CQI initiative yielded enhanced efficiency in the cardiac catheterization laboratory, as evidenced by improved punctuality in procedure starts and increased efficiency in manual sheath-pulls inside [ 78 ].

Accessibility

CQI initiatives were effective in improving accessibility in terms of increasing service coverage and utilization rate. For instance, screening for cigarettes, nutrition counselling, folate prescription, maternal care, immunization coverage [ 53 , 81 , 104 , 105 ], reducing the percentage of non-attending patients to surgery to 0.9% from the baseline 3.9% [ 43 ], increasing Chlamydia screening rates from 29 to 60% [ 45 ], increasing HIV care continuum coverage [ 51 , 59 , 60 ], increasing in the uptake of postpartum long-acting reversible contraceptive use from 6.9% at the baseline to 25.4% [ 42 ], increasing post-caesarean section prophylaxis from 36 to 89% [ 62 ], a 31% increase of kangaroo care practice [ 50 ], and increased follow-up [ 65 ]. Similarly, the QI intervention increased the quality of antenatal care by 29.3%, correct partograph use by 51.7%, and correct active third-stage labour management, a 19.6% improvement from the baseline, but not significantly associated with improvement in contraceptive service uptake [ 61 ].

Timely access

CQI interventions improved the time care provision [ 52 ], and reduced waiting time [ 62 , 74 , 76 , 106 ]. For instance, the discharge process waiting time in the emergency department decreased from 76 min to 22 min [ 79 ]. It also reduced mean postprocedural length of stay from 2.8 days to 2.0 days [ 31 ].

Acceptability

Acceptability of CQI by healthcare providers was satisfactory. For instance, 88% of the faculty, 64% of the residents, and 82% of the staff believed CQI to be useful in the healthcare clinic [ 107 ].

Outcome components

Morbidity and mortality.

CQI efforts have demonstrated better management outcomes among diabetic patients [ 40 ], patients with oral mucositis [ 71 ], and anaemic patients [ 72 ]. It has also reduced infection rate in post-caesarean Sect. [ 62 ], reduced post-peritoneal dialysis peritonitis [ 49 , 108 ], and prevented pressure ulcers [ 70 ]. It is explained by peritonitis incidence from once every 40.1 patient months at baseline to once every 70.8 patient months after CQI [ 49 ] and a 63% reduction in pressure ulcer prevalence within 2 years from 2008 to 2010 [ 70 ]. Furthermore, CQI initiatives significantly reduced in-hospital deaths [ 31 ] and increased patient survival rates [ 108 ]. Figure  2 displays the overall process of the CQI implementations.

The overall mechanisms of continuous quality improvement implementation

In this review, we examined the fundamental concepts and principles underlying CQI, the factors that either hinder or assist in its successful application and implementation, and the purpose of CQI in enhancing quality of care across various health issues.

Our findings have brought attention to the application and implementation of CQI, emphasizing its underlying concepts and principles, as evident in the existing literature [ 31 , 32 , 33 , 34 , 35 , 36 , 39 , 40 , 43 , 45 , 46 ]. Continuous quality improvement has shared with the principles of continuous improvement, such as a customer-driven focus, effective leadership, active participation of individuals, a process-oriented approach, systematic implementation, emphasis on design improvement and prevention, evidence-based decision-making, and fostering partnership [ 5 ]. Moreover, Deming’s 14 principles laid the foundation for CQI principles [ 109 ]. These principles have been adapted and put into practice in various ways: ten [ 19 ] and five [ 38 ] principles in hospitals, five principles for capacity building [ 38 ], and two principles for medication error prevention [ 41 ]. As a principle, the application of CQI can be process-focused [ 8 , 19 ] or impact-focused [ 38 ]. Impact-focused CQI focuses on achieving specific outcomes or impacts, whereas process-focused CQI prioritizes and improves the underlying processes and systems. These principles complement each other and can be utilized based on the objectives of quality improvement initiatives in healthcare settings. Overall, CQI is an ongoing educational process that requires top management’s involvement, demands coordination across departments, encourages the incorporation of views beyond clinical area, and provides non-judgemental evidence based on objective data [ 110 ].

The current review recognized that it was not easy to implement CQI. It requires reasonable utilization of various models and tools. The application of each tool can be varied based on the studied health problem and the purpose of CQI initiative [ 111 ], varied in context, content, structure, and usability [ 112 ]. Additionally, overcoming the cultural, technical, structural, and strategic-related barriers. These barriers have emerged from clinical staff, managers, and health systems perspectives. Of the cultural obstacles, staff non-involvement, resistance to change, and reluctance to report error were staff-related. In contrast, others, such as the absence of celebration for success and hierarchical and rational culture, may require staff and manager involvement. Staff members may exhibit reluctance in reporting errors due to various cultural factors, including lack of trust, hierarchical structures, fear of retribution, and a blame-oriented culture. These challenges pose obstacles to implementing standardized CQI practices, as observed, for instance, in community pharmacy settings [ 85 ]. The hierarchical culture, characterized by clearly defined levels of power, authority, and decision-making, posed challenges to implementing CQI initiatives in public health [ 41 , 86 ]. Although rational culture, a type of organizational culture, emphasizes logical thinking and rational decision-making, it can also create challenges for CQI implementation [ 41 , 86 ] because hierarchical and rational cultures, which emphasize bureaucratic norms and narrow definitions of achievement, were found to act as barriers to the implementation of CQI [ 86 ]. These could be solved by developing a shared mindset and collective commitment, establishing a shared purpose, developing group norms, and cultivating psychological preparedness among staff, managers, and clients to implement and sustain CQI initiatives. Furthermore, reversing cultural-related barriers necessitates cultural-related solutions: development of a culture and group culture to CQI [ 41 , 86 ], positive comprehensive perception [ 91 ], commitment [ 85 ], involving patients, families, leaders, and staff [ 39 , 92 ], collaborating for a common goal [ 80 , 86 ], effective teamwork [ 86 , 87 ], and rewarding and celebrating successes [ 80 , 90 ].

The technical dimension barriers of CQI can include inadequate capitalization of a project and insufficient support for CQI facilitators and data entry managers [ 36 ], immature electronic medical records or poor information systems [ 36 , 86 ], and the lack of training and skills [ 86 , 87 , 88 ]. These challenges may cause the CQI team to rely on outdated information and technologies. The presence of barriers on the technical dimension may challenge the solid foundation of CQI expertise among staff, the ability to recognize opportunities for improvement, a comprehensive understanding of how services are produced and delivered, and routine use of expertise in daily work. Addressing these technical barriers requires knowledge creation activities (training, seminar, and education) [ 39 , 42 , 53 , 69 , 86 , 90 , 91 ], availability of quality data [ 86 ], reliable information [ 92 ], and a manual-online hybrid reporting system [ 85 ].

Structural dimension barriers of CQI include inadequate communication channels and lack of standardized process, specifically weak physician-to-physician synergies [ 36 ], lack of mechanisms for disseminating knowledge and limited use of communication mechanisms [ 86 ]. Lack of communication mechanism endangers sharing ideas and feedback among CQI teams, leading to misunderstandings, limited participation and misinterpretations, and a lack of learning [ 113 ]. Knowledge translation facilitates the co-production of research, subsequent diffusion of knowledge, and the developing stakeholder’s capacity and skills [ 114 ]. Thus, the absence of a knowledge translation mechanism may cause missed opportunities for learning, inefficient problem-solving, and limited creativity. To overcome these challenges, organizations should establish effective communication and information systems [ 86 , 93 ] and learning systems [ 92 ]. Though CQI and knowledge translation have interacted with each other, it is essential to recognize that they are distinct. CQI focuses on process improvement within health care systems, aiming to optimize existing processes, reduce errors, and enhance efficiency.

In contrast, knowledge translation bridges the gap between research evidence and clinical practice, translating research findings into actionable knowledge for practitioners. While both CQI and knowledge translation aim to enhance health care quality and patient outcomes, they employ different strategies: CQI utilizes tools like Plan-Do-Study-Act cycles and statistical process control, while knowledge translation involves knowledge synthesis and dissemination. Additionally, knowledge translation can also serve as a strategy to enhance CQI. Both concepts share the same principle: continuous improvement is essential for both. Therefore, effective strategies on the structural dimension may build efficient and effective steering councils, information systems, and structures to diffuse learning throughout the organization.

Strategic factors, such as goals, planning, funds, and resources, determine the overall purpose of CQI initiatives. Specific barriers were improper goals and poor planning [ 36 , 86 , 88 ], fragmentation of quality assurance policies [ 87 ], inadequate reinforcement to staff [ 36 , 90 ], time constraints [ 85 , 86 ], resource inadequacy [ 86 ], and work overload [ 86 ]. These barriers can be addressed through strengthening leadership [ 86 , 87 ], CQI-based mentoring [ 94 ], periodic monitoring, supportive supervision and coaching [ 43 , 53 , 87 , 92 , 95 ], participation, empowerment, and accountability [ 67 ], involving all stakeholders in decision-making [ 86 , 87 ], a provider-payer partnership [ 64 ], and compensating staff for after-hours meetings on CQI [ 85 ]. The strategic dimension, characterized by a strategic plan and integrated CQI efforts, is devoted to processes that are central to achieving strategic priorities. Roles and responsibilities are defined in terms of integrated strategic and quality-related goals [ 115 ].

The utmost goal of CQI has been to improve the quality of care, which is usually revealed by structure, process, and outcome. After resolving challenges and effectively using tools and running models, the goal of CQI reflects the ultimate reason and purpose of its implementation. First, effectively implemented CQI initiatives can improve leadership, health financing, health workforce development, health information technology, and availability of supplies as the building blocks of a health system [ 31 , 48 , 53 , 68 , 98 ]. Second, effectively implemented CQI initiatives improved care delivery process (counselling, adherence with standards, coordination, collaboration, and linkages) [ 48 , 53 , 65 , 68 ]. Third, the CQI can improve outputs of healthcare delivery, such as satisfaction, accessibility (timely access, utilization), continuity of care, safety, efficiency, and acceptability [ 52 , 54 , 55 , 76 , 78 ]. Finally, the effectiveness of the CQI initiatives has been tested in enhancing responses related to key aspects of the HIV response, maternal and child health, non-communicable disease control, and others (e.g., surgery and peritonitis). However, it is worth noting that CQI initiative has not always been effective. For instance, CQI using a two- to nine-times audit cycle model through systems assessment tools did not bring significant change to increase syphilis testing performance [ 116 ]. This study was conducted within the context of Aboriginal and Torres Strait Islander people’s primary health care settings. Notably, ‘the clinics may not have consistently prioritized syphilis testing performance in their improvement strategies, as facilitated by the CQI program’ [ 116 ]. Additionally, by applying CQI-based mentoring, uptake of facility-based interventions was not significantly improved, though it was effective in increasing community health worker visits during pregnancy and the postnatal period, knowledge about maternal and child health and exclusive breastfeeding practice, and HIV disclosure status [ 117 ]. The study conducted in South Africa revealed no significant association between the coverage of facility-based interventions and Continuous Quality Improvement (CQI) implementation. This lack of association was attributed to the already high antenatal and postnatal attendance rates in both control and intervention groups at baseline, leaving little room for improvement. Additionally, the coverage of HIV interventions remained consistently high throughout the study period [ 117 ].

Regarding health care and policy implications, CQI has played a vital role in advancing PHC and fostering the realization of UHC goals worldwide. The indicators found in Donabedian’s framework that are positively influenced by CQI efforts are comparable to those included in the PHC performance initiative’s conceptual framework [ 29 , 118 , 119 ]. It is clearly explained that PHC serves as the roadmap to realizing the vision of UHC [ 120 , 121 ]. Given these circumstances, implementing CQI can contribute to the achievement of PHC principles and the objectives of UHC. For instance, by implementing CQI methods, countries have enhanced the accessibility, affordability, and quality of PHC services, leading to better health outcomes for their populations. CQI has facilitated identifying and resolving healthcare gaps and inefficiencies, enabling countries to optimize resource allocation and deliver more effective and patient-centered care. However, it is crucial to recognize that the successful implementation of Continuous Quality Improvement (CQI) necessitates optimizing the duration of each cycle, understanding challenges and barriers that extend beyond the health system and settings, and acknowledging that its effectiveness may be compromised if these challenges are not adequately addressed.

Despite abundant literature, there are still gaps regarding the relationship between CQI and other dimensions within the healthcare system. No studies have examined the impact of CQI initiatives on catastrophic health expenditure, effective service coverage, patient-centredness, comprehensiveness, equity, health security, and responsiveness.

Limitations

In conducting this review, it has some limitations to consider. Firstly, only articles published in English were included, which may introduce the exclusion of relevant non-English articles. Additionally, as this review follows a scoping methodology, the focus is on synthesising available evidence rather than critically evaluating or scoring the quality of the included articles.

Continuous quality improvement is investigated as a continuous and ongoing intervention, where the implementation time can vary across different cycles. The CQI team and implementation timelines were critical elements of CQI in different models. Among the commonly used approaches, the PDSA or PDCA is frequently employed. In most CQI models, a wide range of tools, nineteen tools, are commonly utilized to support the improvement process. Cultural, technical, structural, and strategic barriers and facilitators are significant in implementing CQI initiatives. Implementing the CQI initiative aims to improve health system blocks, enhance health service delivery process and output, and ultimately prevent morbidity and reduce mortality. For future researchers, considering that CQI is context-dependent approach, conducting scale-up implementation research about catastrophic health expenditure, effective service coverage, patient-centredness, comprehensiveness, equity, health security, and responsiveness across various settings and health issues would be valuable.

Availability of data and materials

The data used and/or analyzed during the current study are available in this manuscript and/or the supplementary file.

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Endalamaw, A., Khatri, R.B., Mengistu, T.S. et al. A scoping review of continuous quality improvement in healthcare system: conceptualization, models and tools, barriers and facilitators, and impact. BMC Health Serv Res 24 , 487 (2024). https://doi.org/10.1186/s12913-024-10828-0

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• Correspondence to: A Backhouse adam.backhouse{at}nhs.net

What you need to know

Thinking of quality improvement (QI) as a principle-based approach to change provides greater clarity about ( a ) the contribution QI offers to staff and patients, ( b ) how to differentiate it from other approaches, ( c ) the benefits of using QI together with other change approaches

QI is not a silver bullet for all changes required in healthcare: it has great potential to be used together with other change approaches, either concurrently (using audit to inform iterative tests of change) or consecutively (using QI to adapt published research to local context)

As QI becomes established, opportunities for these collaborations will grow, to the benefit of patients.

The benefits to front line clinicians of participating in quality improvement (QI) activity are promoted in many health systems. QI can represent a valuable opportunity for individuals to be involved in leading and delivering change, from improving individual patient care to transforming services across complex health and care systems. 1

However, it is not clear that this promotion of QI has created greater understanding of QI or widespread adoption. QI largely remains an activity undertaken by experts and early adopters, often in isolation from their peers. 2 There is a danger of a widening gap between this group and the majority of healthcare professionals.

This article will make it easier for those new to QI to understand what it is, where it fits with other approaches to improving care (such as audit or research), when best to use a QI approach, making it easier to understand the relevance and usefulness of QI in delivering better outcomes for patients.

How this article was made

AB and FO are both specialist quality improvement practitioners and have developed their expertise working in QI roles for a variety of UK healthcare organisations. The analysis presented here arose from AB and FO’s observations of the challenges faced when introducing QI, with healthcare providers often unable to distinguish between QI and other change approaches, making it difficult to understand what QI can do for them.

How is quality improvement defined?

There are many definitions of QI ( box 1 ). The BMJ ’s Quality Improvement series uses the Academy of Medical Royal Colleges definition. 6 Rather than viewing QI as a single method or set of tools, it can be more helpful to think of QI as based on a set of principles common to many of these definitions: a systematic continuous approach that aims to solve problems in healthcare, improve service provision, and ultimately provide better outcomes for patients.

Definitions of quality improvement

Improvement in patient outcomes, system performance, and professional development that results from a combined, multidisciplinary approach in how change is delivered. 3

The delivery of healthcare with improved outcomes and lower cost through continuous redesigning of work processes and systems. 4

Using a systematic change method and strategies to improve patient experience and outcome. 5

To make a difference to patients by improving safety, effectiveness, and experience of care by using understanding of our complex healthcare environment, applying a systematic approach, and designing, testing, and implementing changes using real time measurement for improvement. 6

In this article we discuss QI as an approach to improving healthcare that follows the principles outlined in box 2 ; this may be a useful reference to consider how particular methods or tools could be used as part of a QI approach.

Principles of QI

Primary intent— To bring about measurable improvement to a specific aspect of healthcare delivery, often with evidence or theory of what might work but requiring local iterative testing to find the best solution. 7

Employing an iterative process of testing change ideas— Adopting a theory of change which emphasises a continuous process of planning and testing changes, studying and learning from comparing the results to a predicted outcome, and adapting hypotheses in response to results of previous tests. 8 9

Consistent use of an agreed methodology— Many different QI methodologies are available; commonly cited methodologies include the Model for Improvement, Lean, Six Sigma, and Experience-based Co-design. 4 Systematic review shows that the choice of tools or methodologies has little impact on the success of QI provided that the chosen methodology is followed consistently. 10 Though there is no formal agreement on what constitutes a QI tool, it would include activities such as process mapping that can be used within a range of QI methodological approaches. NHS Scotland’s Quality Improvement Hub has a glossary of commonly used tools in QI. 11

Empowerment of front line staff and service users— QI work should engage staff and patients by providing them with the opportunity and skills to contribute to improvement work. Recognition of this need often manifests in drives from senior leadership or management to build QI capability in healthcare organisations, but it also requires that frontline staff and service users feel able to make use of these skills and take ownership of improvement work. 12

Using data to drive improvement— To drive decision making by measuring the impact of tests of change over time and understanding variation in processes and outcomes. Measurement for improvement typically prioritises this narrative approach over concerns around exactness and completeness of data. 13 14

Scale-up and spread, with adaptation to context— As interventions tested using a QI approach are scaled up and the degree of belief in their efficacy increases, it is desirable that they spread outward and be adopted by others. Key to successful diffusion of improvement is the adaption of interventions to new environments, patient and staff groups, available resources, and even personal preferences of healthcare providers in surrounding areas, again using an iterative testing approach. 15 16

What other approaches to improving healthcare are there?

Taking considered action to change healthcare for the better is not new, but QI as a distinct approach to improving healthcare is a relatively recent development. There are many well established approaches to evaluating and making changes to healthcare services in use, and QI will only be adopted more widely if it offers a new perspective or an advantage over other approaches in certain situations.

A non-systematic literature scan identified the following other approaches for making change in healthcare: research, clinical audit, service evaluation, and clinical transformation. We also identified innovation as an important catalyst for change, but we did not consider it an approach to evaluating and changing healthcare services so much as a catch-all term for describing the development and introduction of new ideas into the system. A summary of the different approaches and their definition is shown in box 3 . Many have elements in common with QI, but there are important difference in both intent and application. To be useful to clinicians and managers, QI must find a role within healthcare that complements research, audit, service evaluation, and clinical transformation while retaining the core principles that differentiate it from these approaches.

Alternatives to QI

Research— The attempt to derive generalisable new knowledge by addressing clearly defined questions with systematic and rigorous methods. 17

Clinical audit— A way to find out if healthcare is being provided in line with standards and to let care providers and patients know where their service is doing well, and where there could be improvements. 18

Service evaluation— A process of investigating the effectiveness or efficiency of a service with the purpose of generating information for local decision making about the service. 19

Clinical transformation— An umbrella term for more radical approaches to change; a deliberate, planned process to make dramatic and irreversible changes to how care is delivered. 20

Innovation— To develop and deliver new or improved health policies, systems, products and technologies, and services and delivery methods that improve people’s health. Health innovation responds to unmet needs by employing new ways of thinking and working. 21

Why do we need to make this distinction for QI to succeed?

Improvement in healthcare is 20% technical and 80% human. 22 Essential to that 80% is clear communication, clarity of approach, and a common language. Without this shared understanding of QI as a distinct approach to change, QI work risks straying from the core principles outlined above, making it less likely to succeed. If practitioners cannot communicate clearly with their colleagues about the key principles and differences of a QI approach, there will be mismatched expectations about what QI is and how it is used, lowering the chance that QI work will be effective in improving outcomes for patients. 23

There is also a risk that the language of QI is adopted to describe change efforts regardless of their fidelity to a QI approach, either due to a lack of understanding of QI or a lack of intention to carry it out consistently. 9 Poor fidelity to the core principles of QI reduces its effectiveness and makes its desired outcome less likely, leading to wasted effort by participants and decreasing its credibility. 2 8 24 This in turn further widens the gap between advocates of QI and those inclined to scepticism, and may lead to missed opportunities to use QI more widely, consequently leading to variation in the quality of patient care.

Without articulating the differences between QI and other approaches, there is a risk of not being able to identify where a QI approach can best add value. Conversely, we might be tempted to see QI as a “silver bullet” for every healthcare challenge when a different approach may be more effective. In reality it is not clear that QI will be fit for purpose in tackling all of the wicked problems of healthcare delivery and we must be able to identify the right tool for the job in each situation. 25 Finally, while different approaches will be better suited to different types of challenge, not having a clear understanding of how approaches differ and complement each other may mean missed opportunities for multi-pronged approaches to improving care.

What is the relationship between QI and other approaches such as audit?

Academic journals, healthcare providers, and “arms-length bodies” have made various attempts to distinguish between the different approaches to improving healthcare. 19 26 27 28 However, most comparisons do not include QI or compare QI to only one or two of the other approaches. 7 29 30 31 To make it easier for people to use QI approaches effectively and appropriately, we summarise the similarities, differences, and crossover between QI and other approaches to tackling healthcare challenges ( fig 1 ).

How quality improvement interacts with other approaches to improving healthcare

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QI and research

Research aims to generate new generalisable knowledge, while QI typically involves a combination of generating new knowledge or implementing existing knowledge within a specific setting. 32 Unlike research, including pragmatic research designed to test effectiveness of interventions in real life, QI does not aim to provide generalisable knowledge. In common with QI, research requires a consistent methodology. This method is typically used, however, to prove or disprove a fixed hypothesis rather than the adaptive hypotheses developed through the iterative testing of ideas typical of QI. Both research and QI are interested in the environment where work is conducted, though with different intentions: research aims to eliminate or at least reduce the impact of many variables to create generalisable knowledge, whereas QI seeks to understand what works best in a given context. The rigour of data collection and analysis required for research is much higher; in QI a criterion of “good enough” is often applied.

Relationship with QI

Though the goal of clinical research is to develop new knowledge that will lead to changes in practice, much has been written on the lag time between publication of research evidence and system-wide adoption, leading to delays in patients benefitting from new treatments or interventions. 33 QI offers a way to iteratively test the conditions required to adapt published research findings to the local context of individual healthcare providers, generating new knowledge in the process. Areas with little existing knowledge requiring further research may be identified during improvement activities, which in turn can form research questions for further study. QI and research also intersect in the field of improvement science, the academic study of QI methods which seeks to ensure QI is carried out as effectively as possible. 34

Scenario: QI for translational research

Newly published research shows that a particular physiotherapy intervention is more clinically effective when delivered in short, twice-daily bursts rather than longer, less frequent sessions. A team of hospital physiotherapists wish to implement the change but are unclear how they will manage the shift in workload and how they should introduce this potentially disruptive change to staff and to patients.

Before continuing reading think about your own practice— How would you approach this situation, and how would you use the QI principles described in this article?

Adopting a QI approach, the team realise that, although the change they want to make is already determined, the way in which it is introduced and adapted to their wards is for them to decide. They take time to explain the benefits of the change to colleagues and their current patients, and ask patients how they would best like to receive their extra physiotherapy sessions.

The change is planned and tested for two weeks with one physiotherapist working with a small number of patients. Data are collected each day, including reasons why sessions were missed or refused. The team review the data each day and make iterative changes to the physiotherapist’s schedule, and to the times of day the sessions are offered to patients. Once an improvement is seen, this new way of working is scaled up to all of the patients on the ward.

The findings of the work are fed into a service evaluation of physiotherapy provision across the hospital, which uses the findings of the QI work to make recommendations about how physiotherapy provision should be structured in the future. People feel more positive about the change because they know colleagues who have already made it work in practice.

QI and clinical audit

Clinical audit is closely related to QI: it is often used with the intention of iteratively improving the standard of healthcare, albeit in relation to a pre-determined standard of best practice. 35 When used iteratively, interspersed with improvement action, the clinical audit cycle adheres to many of the principles of QI. However, in practice clinical audit is often used by healthcare organisations as an assurance function, making it less likely to be carried out with a focus on empowering staff and service users to make changes to practice. 36 Furthermore, academic reviews of audit programmes have shown audit to be an ineffective approach to improving quality due to a focus on data collection and analysis without a well developed approach to the action section of the audit cycle. 37 Clinical audits, such as the National Clinical Audit Programme in the UK (NCAPOP), often focus on the management of specific clinical conditions. QI can focus on any part of service delivery and can take a more cross-cutting view which may identify issues and solutions that benefit multiple patient groups and pathways. 30

Audit is often the first step in a QI process and is used to identify improvement opportunities, particularly where compliance with known standards for high quality patient care needs to be improved. Audit can be used to establish a baseline and to analyse the impact of tests of change against the baseline. Also, once an improvement project is under way, audit may form part of rapid cycle evaluation, during the iterative testing phase, to understand the impact of the idea being tested. Regular clinical audit may be a useful assurance tool to help track whether improvements have been sustained over time.

Scenario: Audit and QI

A foundation year 2 (FY2) doctor is asked to complete an audit of a pre-surgical pathway by looking retrospectively through patient documentation. She concludes that adherence to best practice is mixed and recommends: “Remind the team of the importance of being thorough in this respect and re-audit in 6 months.” The results are presented at an audit meeting, but a re-audit a year later by a new FY2 doctor shows similar results.

Before continuing reading think about your own practice— How would you approach this situation, and how would you use the QI principles described in this paper?

Contrast the above with a team-led, rapid cycle audit in which everyone contributes to collecting and reviewing data from the previous week, discussed at a regular team meeting. Though surgical patients are often transient, their experience of care and ideas for improvement are captured during discharge conversations. The team identify and test several iterative changes to care processes. They document and test these changes between audits, leading to sustainable change. Some of the surgeons involved work across multiple hospitals, and spread some of the improvements, with the audit tool, as they go.

QI and service evaluation

In practice, service evaluation is not subject to the same rigorous definition or governance as research or clinical audit, meaning that there are inconsistencies in the methodology for carrying it out. While the primary intent for QI is to make change that will drive improvement, the primary intent for evaluation is to assess the performance of current patient care. 38 Service evaluation may be carried out proactively to assess a service against its stated aims or to review the quality of patient care, or may be commissioned in response to serious patient harm or red flags about service performance. The purpose of service evaluation is to help local decision makers determine whether a service is fit for purpose and, if necessary, identify areas for improvement.

Service evaluation may be used to initiate QI activity by identifying opportunities for change that would benefit from a QI approach. It may also evaluate the impact of changes made using QI, either during the work or after completion to assess sustainability of improvements made. Though likely planned as separate activities, service evaluation and QI may overlap and inform each other as they both develop. Service evaluation may also make a judgment about a service’s readiness for change and identify any barriers to, or prerequisites for, carrying out QI.

QI and clinical transformation

Clinical transformation involves radical, dramatic, and irreversible change—the sort of change that cannot be achieved through continuous improvement alone. As with service evaluation, there is no consensus on what clinical transformation entails, and it may be best thought of as an umbrella term for the large scale reform or redesign of clinical services and the non-clinical services that support them. 20 39 While it is possible to carry out transformation activity that uses elements of QI approach, such as effective engagement of the staff and patients involved, QI which rests on iterative test of change cannot have a transformational approach—that is, one-off, irreversible change.

There is opportunity to use QI to identify and test ideas before full scale clinical transformation is implemented. This has the benefit of engaging staff and patients in the clinical transformation process and increasing the degree of belief that clinical transformation will be effective or beneficial. Transformation activity, once completed, could be followed up with QI activity to drive continuous improvement of the new process or allow adaption of new ways of working. As interventions made using QI are scaled up and spread, the line between QI and transformation may seem to blur. The shift from QI to transformation occurs when the intention of the work shifts away from continuous testing and adaptation into the wholesale implementation of an agreed solution.

Scenario: QI and clinical transformation

An NHS trust’s human resources (HR) team is struggling to manage its junior doctor placements, rotas, and on-call duties, which is causing tension and has led to concern about medical cover and patient safety out of hours. A neighbouring trust has launched a smartphone app that supports clinicians and HR colleagues to manage these processes with the great success.

This problem feels ripe for a transformation approach—to launch the app across the trust, confident that it will solve the trust’s problems.

Before continuing reading think about your own organisation— What do you think will happen, and how would you use the QI principles described in this article for this situation?

Outcome without QI

Unfortunately, the HR team haven’t taken the time to understand the underlying problems with their current system, which revolve around poor communication and clarity from the HR team, based on not knowing who to contact and being unable to answer questions. HR assume that because the app has been a success elsewhere, it will work here as well.

People get excited about the new app and the benefits it will bring, but no consideration is given to the processes and relationships that need to be in place to make it work. The app is launched with a high profile campaign and adoption is high, but the same issues continue. The HR team are confused as to why things didn’t work.

Outcome with QI

Although the app has worked elsewhere, rolling it out without adapting it to local context is a risk – one which application of QI principles can mitigate.

HR pilot the app in a volunteer specialty after spending time speaking to clinicians to better understand their needs. They carry out several tests of change, ironing out issues with the process as they go, using issues logged and clinician feedback as a source of data. When they are confident the app works for them, they expand out to a directorate, a division, and finally the transformational step of an organisation-wide rollout can be taken.

Education into practice

Next time when faced with what looks like a quality improvement (QI) opportunity, consider asking:

How do you know that QI is the best approach to this situation? What else might be appropriate?

Have you considered how to ensure you implement QI according to the principles described above?

Is there opportunity to use other approaches in tandem with QI for a more effective result?

How patients were involved in the creation of this article

This article was conceived and developed in response to conversations with clinicians and patients working together on co-produced quality improvement and research projects in a large UK hospital. The first iteration of the article was reviewed by an expert patient, and, in response to their feedback, we have sought to make clearer the link between understanding the issues raised and better patient care.

Contributors: This work was initially conceived by AB. AB and FO were responsible for the research and drafting of the article. AB is the guarantor of the article.

Competing interests: We have read and understood BMJ policy on declaration of interests and have no relevant interests to declare.

Provenance and peer review: This article is part of a series commissioned by The BMJ based on ideas generated by a joint editorial group with members from the Health Foundation and The BMJ , including a patient/carer. The BMJ retained full editorial control over external peer review, editing, and publication. Open access fees and The BMJ ’s quality improvement editor post are funded by the Health Foundation.

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ .

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Where Data Serves People: Benefits of the Continuous Quality Improvement Approach

By Kate Eby | October 26, 2017

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Quality improvement management developed in the twentieth century as an approach that sought to address procedural problems before errors could hurt products. The quality improvement philosophy expressed itself in methods such as Total Quality Management (TQM) and Lean Management . A particular expression of quality management called continuous quality improvement (CQI) arose to serve the needs of social services, healthcare, and education. CQI provides a framework for organizations to aim for excellence and also quantify and document its accomplishments. In this article, you’ll learn about the core principles, methods, and benefits of continuous quality improvement. We’ll also explore reasons why employees and others may reject formal attempts to build improvement teams, and how teams can gain confidence in the CQI approach.

What Is Continuous Quality Improvement?

Continuous quality improvement (CQI) is a quality management philosophy that encourages all team members, including board members, volunteers, and employees, to continuously ask what can be done better. CQI builds on existing quality management approaches such as TQM, Lean, and Six Sigma , but emphasizes that internal and external customer satisfaction is paramount, and that problems are caused by processes, not people. Despite CQI’s focus on people, data drives the search for problems and captures improvements. This process is sometimes also called performance and quality improvement (PQI), and involves three main steps: develop, implement, and reflect.

Occasionally, CQI can be considered a part of performance management, which is the long-term evaluation of programs to ensure that they meet goals. Performance management has two parts: CQI, which offers teams the opportunity to test and implement new strategies as they work, in shorter improvement cycles; and process evaluation, which an outside group may conduct by looking at key issues from a systemic perspective. Organizations may also use performance management to encourage team members to participate in improvement efforts. 

Origins and Brief History of CQI The formal pursuit and management of quality in the 20th century traces back to Walter Shewhart’s statistical process control models from the 1920’s and 1930’s. Shewhart demonstrated that employees could track variation in processes and product output on a chart, which allowed them to fine tune work as it was completed. Such activities not only produced superior products, but also empowered employees to learn more about their work and be accountable for it. Shewhart’s student and colleague, W. Edwards Deming further refined the concepts, which eventually found their way into quality management philosophies such as TQM, and then to continuous quality improvement. Here’s a 1994 interview with Dr. Deming on his thoughts about quality and innovation in the workplace.

As one National Institutes of Health article, “Assessing the Impact of Continuous Quality Improvement/Total Quality Management: Concept versus Implementation,” explains: 

CQI/TQM differs from the traditional quality assurance in many ways; Among the most important is CQI/TQM's focus on understanding and improving underlying work processes and systems versus the traditional quality assurance emphasis on correcting after-the-fact errors of individuals. 

CQI was first used in manufacturing, and Joseph Juran, Brian Joiner, and Philip Crosby expanded the concept to other business areas. By the 1970s, quality management began to move beyond factories to transactional and service fields.

According to Michael Decker, MD in “ Beyond Infection Control: The New Hospital Epidemiology ,” in health care, quality measurements were originally based on how well an organization followed given standards. As Decker writes: 

When a standard was not met, the response was often to seek a miscreant who could be punished for the transaction. Attention was directed almost exclusively to the performance of physicians, with little recognition given to the roles of other participants in the process or to the organization of the process itself. The definition of quality rarely encompassed such considerations as patient satisfaction or the needs of families, employers, or other healthcare providers. 

As insurers, government, and other agencies began to demand quantitative proof of quality based on set procedures, it was clear that a new approach was necessary. CQI not only uses data to instruct changes, but also seeks change from within the system and likewise looks for answers from the people in the system. Additionally, in CQI, quality is defined by meeting or exceeding the needs of customers, whether internal or external. 

Today, marketing programs teach CQI as part of their curriculum, while social service programs in healthcare, education, facilities management, construction, and transportation use the practice. 

What Is CQI in Health Care?

In health care, the continuous quality improvement philosophy came to prominence as those in  government and private insurance companies required more evidence of value for money. CQI provides a means to measure consistency and success in private and public hospitals, health programs for specific ailments, and for specific demographics, such as children, seniors, teens, pregnant women, and prison populations. 

Beyond controlling costs and justifying expenses, continuous quality improvement in medicine can provide support for excellence in care. For example, the pervasiveness of colorectal cancer demands sound cancer detection methods. Authors of the paper “ Quality in the Technical Performance of Colonoscopy and the Continuous Quality Improvement Process for Colonoscopy: Recommendations of the U.S. Multi-Society Task Force on Colorectal Cancer ” assert that “Continuous quality improvement is recommended as part of every colonoscopy program.”

What Is a Continuous Quality Improvement Program?

A continuous quality improvement program aims to ensure that all team members, employees, managers, and other stakeholders feel consistently empowered to improve efforts and results.

What Are the Core Principles of CQI?

Organizations and researchers articulate the fundamentals of continuous quality improvement  slightly differently, but it generally embodies five principles:

• Look at the system and its processes . Most problems are found in processes, not in people. CQI seeks solutions to produce the best outcome, instead of blaming people for problems that arise. In CQI, problems occur because of poor design, unclear instructions, or poor leadership.
• Use statistical analysis to identify and detail problems and strengths . CQI employs serial experimentation, also called the scientific method. Under this framework, teams manipulate different variables to see what works best. These tests are structured so practitioners can capture results and the chosen course(s) of action.
• Employ cross-functional teams drawn from employees, management, volunteers, board members, and even customers . Quality improvement is the purview of the whole team, not just management.
• Empower all stakeholders to identify problems and opportunities for improvement, and to develop and present solutions .
• Focus on both internal and external customers. Fulfilling the requirements of the customer is paramount.

A commonly recognized problem in any process is variation. Variation in procedures causes variation in outcomes. CQI and all quality management philosophies seek to make processes consistent. When output is consistent, teams can begin to improve processes.

There are other principles that guide continuous quality improvement, as well. Improvement should be part of the culture of the organization and a natural part of how people perform their jobs. Improvement doesn’t only mean success in a one-off project; rather, it is an ongoing effort, concurrent with regular duties. Ongoing efforts also test improvements as they happen, without waiting for a formal evaluation. It is often said that CQI doesn’t follow the adage: If it isn’t broken, don’t fix it . Instead, CQI team members should proactively search for ways to be more efficient and effective. 

You can learn more about the core principles in the U.S. by contacting the American Society for Quality (ASQ) , American Standards Organization , and the Quality Institute in Healthcare .

Why We Use CQI

A continuous quality improvement approach offers various benefits to organizations. At a minimum, as social service entities and educational institutions shift to outcomes-based models, data-driven efforts that produce measurable results satisfy funding requirements. However, CQI can also provide structural and procedural benefits. 

The benefits of CQI include the following:

• Team member accountability
• Creativity and solution creation
• Heightened team member morale
• Improved processes, information management, and documentation
• Greater adaptability to changes
• Tools and methods to monitor program effectiveness 
• Opportunities for additional programs and new program modules

Why Do Employees and Others Resist CQI? Although the principles of CQI may sound inviting, team members may reject improvement initiatives for many reasons. Habits are difficult to adjust, and people often don’t like change. A key word in quality improvement word is continuous. To succeed, the effort must be ongoing and consistent, and that takes additional effort, which team members might resist. 

Setting Up a Continuous Quality Improvement Team

Depending on the framework chosen, a team may have specific methodological skills. For example, a Six Sigma implementation may require trained Master Black Belts, Black Belts, and Green Belts to guide and execute research and improvement designs. However, a CQI team should consist of people from the entire organization who are directly involved in its mission. Team members may be administrators, volunteers, board members, customers, or staff members. CQI positions include a chairperson or facilitator, a secretary or scribe, and team members. It can be helpful to build a team with the following skills and designated responsibilities:

• Champion: Selected from within the team, a CQI champion helps to ensure the program receives support within and without the team. 
• Program Administrators: CQI administrators should have day-to-day insight into how their organization works. Program administrators should have a sensitivity to when the improvement effort has become a burden, but should also lead the change effort suggested by the CQI process.
• Community Stakeholders: Stakeholders may be internal or external clients who can guide prioritization of CQI program efforts. 
• Data Specialist, Program Evaluators: The number crunchers can identify data sources, analyze data, and present results in consumable charts and reports.
• Management: An organization’s management must be committed to the improvement effort, advocate for it to the whole organization, and support efforts by providing time, training, and other necessary resources.

What Are the CQI Methods?

Organizations implementing CQI may choose an existing established quality management method, but effective CQI usually includes some variants of the following core steps:

• Create a Team: Your CQI team should be comprehensive and representative of the organization. Team members need direct knowledge of the work, clients, and system. Team members can be volunteers, employees, directors, managers, or board members. 
• Define a Goal: Not every aspect of your enterprise requires tracking and improvement. Consider high-risk or essential aspects of your organization’s activities and study those before you spend time and effort on other aspects. 
• Define Customer or Client Needs: Regardless of if your enterprise outputs products or services, the satisfaction and success of customers is critical. While deciding how to serve customers best, also consider what quality means.
• Determine Baseline: What is your starting point? You need this information to help you know whether your efforts are improving the current situation.
• Determine What Success Looks Like: Identify when to stop working on a problem and when to move to the next problem.  
• Consider Different Approaches to Reaching the Established Goal: Build your plan of action methodically. Don’t just choose the first idea the group considers.
• Gather and Analyze Data: Numbers and statistics can help with the decision making process and are essential for documenting improvements for certification or funding.
• Use the Scientific Method: Solutions should be tested, refined, implemented, and adjusted as necessary.
• Create Logic Models: Logic models help to connect what you want to achieve to how you’ll achieve it. Logic models work well for demonstrating impact to funders. 
• Foster a Learning Culture: Use peer teaching to help individuals build skills and sponsor group classes.
• Sustain Effort: Continuous improvement is not the success of a single project. You can sustain momentum by ensuring that data, evaluations, and procedures are well documented for times of staff transition so they can iterate. 

Process Studies and Outcome Studies In some organizations, improvements are analyzed and tracked through regular process and outcome studies.

• Process Study: Look at the effectiveness of existing processes and ask: How can we improve the facility or processes or procedures? How do we make it more efficient?
• Outcome Study: Evaluate the outcomes of changes. For example, are patients getting the right care? Are they worsening after treatment? 

Frameworks In pursuing improvements, organizations may use an assortment of existing quality assurance methods. Some frameworks are specific to social and health services, while others were developed in manufacturing and have been adopted by different industries and the service sector. Here are a few frameworks to help you accomplish CQI in your organization:

• Getting to Outcomes (GTO): The RAND Corporation, along with the help of the Center for Disease Control, developed this trademarked model to help communities fight assorted addictions among young people. It includes 10 phases: focus, target, adopt, adapt, resources, plan, monitor, evaluate, improve, and sustain. GTO is ideal for both experienced teams and those new to working with quality improvement and outcome evaluation.
• PDSA/PDCA: Developed by W. Edwards Deming, plan, do, study, act (PDSA) became plan, do, check, act (PDCA), and presents a cyclical model for problem solving. PCSA is an essential element of ISO 9001 and TQM methodologies. 

• Lean: This method focuses on eliminating waste and redundancy in existing processes, and works well in large organizations.
• Six Sigma: Often employed after a pass with Lean, Six Sigma seeks to find and remove the causes of defects or problems, and variations in process and output. A data-driven methodology, Six Sigma consists of five iterative phases: define, measure, analyze, improve, and control. Six Sigma adapts well to improving processes, such as client intake. The quantitative approach suits situations where you must rigorously document safety and quality. 
• Malcolm Baldrige Quality Award Methodology : Organizations often follow Baldrige Award criteria to pursue quality. The Baldrige criteria aim to make strategic changes to an entire organization. Baldrige is a holistic approach and works well for introducing CQI concepts and encouraging a culture of improvement.

Tools for Working with CQI

As with other quality improvement philosophies and methods, tools provide ways to gather information and data, make decisions, track progress, and visualize processes and results. The following are some of the tools you can use through the steps of an improvement effort, sometimes called IADT, which stands for identify, analyze, develop, and track. 

Identifying

• Brainstorming allows groups to creatively discover problems and solutions.
• Ishikawa diagram, also called a fishbone diagram, allows you to graphically display all possible causes of a problem and then group them.

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• Histogram shows how often a problem occurs, and how and where results cluster.
• Check sheets offer a basic way to create and use devices for collecting data.
• Pareto or 80/20 analysis charts are based on the assumption that 80 percent of problems are linked to 20 percent of causes. Pareto analysis helps you identify which problems fall into which categories.
• The Ishikawa diagram is also a useful tool for analyzing problem causes through visual representation.

• Group discussions often use the 5 Whys questioning method to discover root causes. You pose a question, and then continue asking why to each successive response.

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• Storyboards graphically tell a story. In this case, they can explain how and why improvement is necessary and can provide a reminder for team members of the goal and steps to achieving the goal. A storyboard should be clear and detailed enough to stand on its own without interpretation. Benchmarking uses the information and statistics about comparable organizations to establish standards or benchmarks for attaining quality. 

Testing and Implementing

• Gantt charts help to track progress over time and help you visualize the effort applied to individual tasks.
• Storyboards are also useful for mapping the new process and its progress.
• Statistical process charts allow you to track results over time to see if and where outliers appear. These variations may indicate processes that require tuning. 

Best Practices for CQI

• Ensure that you have the correct data to address the chosen problem. Data must be accurate, timely, and focussed.
• Measure more than the outcome. It is important to also understand the composition and organization of an entity to understand where problems arise.
• Aggregate data so you and the teams that follow you can understand patterns of input and results. 
• Review data collection tools and process for relevance.
• Make time and financial resources available to implement the effort properly. Consider devoting a dedicated team to the initiative.
• Break a large project into smaller ones to maximize opportunities for success and build enthusiasm.
• Define success for a project and understand when it will end so that you can start new projects. 

Learning More About Continuous Quality Improvement

Non-profit special interest organizations such as Population Health Improvement Partners offer specific training in continual quality improvement. Training is also available through universities, with online material, workbooks, and via in-person workshops. Other supplementary studies can support the practice of CQI, such as general quality management principle training, problem solving, and team building .

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How to Address a Quality Problem

• First Online: 02 December 2016

Cite this chapter

• Brandyn D. Lau MPH, CPH 5 , 6 , 7 &
• Elliott R. Haut MD, PhD, FACS 5 , 6 , 7  

Part of the book series: Success in Academic Surgery ((SIAS))

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For quality improvement (QI) projects, the Translating Research into Practice (TRiP) framework is an ideal model for developing and addressing topics locally (see Fig. 6.1) (Pronovost et al. BMJ 337:a1714, 2008). The TRiP framework is a four-step process that evaluates best practices with the goal of creating strategies for implementation at a local level. Using high-quality evidence, the TRiP framework utilizes multidisciplinary collaboration to incorporate knowledge translation for broader dissemination of knowledge into practice. Each step focuses on systems of care rather than care of individual patients with engagement of multidisciplinary teams to assume ownership of the QI project. Finally, this framework encourages adaptation so that the QI intervention can meet the culture of the implementing group when expanded regionally or nationally (Pronovost et al. BMJ 337:a1714, 2008). At the Johns Hopkins Hospital, we have successfully utilized this framework to reduce central line-associated blood stream infections (Pronovost et al. BMJ 340:c309, 2010) and improve prescription of risk-appropriate venous thromboembolism (VTE) prophylaxis (Streiff et al. BMJ 344:e3935, 2012). For this purposes of this chapter we will give examples of these successful interventions, though each step can be applied to meet different quality improvement goals.

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Aboagye JK, Lau BD, Schneider EB, Streiff MB, Haut ER. Linking processes and outcomes: a key strategy to prevent and report harm from venous thromboembolism in surgical patients. JAMA Surg. 2013;148(3):299–300. doi: 10.1001/jamasurg.2013.1400 .

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Division of Acute Care Surgery, Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA

Brandyn D. Lau MPH, CPH & Elliott R. Haut MD, PhD, FACS

Department of Health Policy and Management, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA

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Correspondence to Elliott R. Haut MD, PhD, FACS .

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University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA

Rachel R. Kelz

The Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA

Sandra L. Wong

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Lau, B.D., Haut, E.R. (2017). How to Address a Quality Problem. In: Kelz, R., Wong, S. (eds) Surgical Quality Improvement. Success in Academic Surgery. Springer, Cham. https://doi.org/10.1007/978-3-319-23356-7_6

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