Statistical Process Control: No Hits, No Runs, No Errors?

A novel intervention or new clinical program must achieve and sustain its operational and clinical goals. To demonstrate successfully optimizing health care value, providers and other stakeholders must longitudinally measure and report these tracked relevant associated outcomes. This includes clinicians and perioperative health services researchers who chose to participate in these process improvement and quality improvement efforts ("play in this space"). Statistical process control is a branch of statistics that combines rigorous sequential, time-based analysis methods with graphical presentation of performance and quality data. Statistical process control and its primary tool-the control chart-provide researchers and practitioners with a method of better understanding and communicating data from health care performance and quality improvement efforts. Statistical process control presents performance and quality data in a format that is typically more understandable to practicing clinicians, administrators, and health care decision makers and often more readily generates actionable insights and conclusions. Health care quality improvement is predicated on statistical process control. Undertaking, achieving, and reporting continuous quality improvement in anesthesiology, critical care, perioperative medicine, and acute and chronic pain management all fundamentally rely on applying statistical process control methods and tools. Thus, the present basic statistical tutorial focuses on the germane topic of statistical process control, including random (common) causes of variation versus assignable (special) causes of variation: Six Sigma versus Lean versus Lean Six Sigma, levels of quality management, run chart, control charts, selecting the applicable type of control chart, and analyzing a control chart. Specific attention is focused on quasi-experimental study designs, which are particularly applicable to process improvement and quality improvement efforts.

[Analysis of Different Quality Management Systems in Medical Practices in Saxony]. / Analyse verschiedener Qualitätsmanagementsysteme in Arztpraxen für Sachsen.

INTRODUCTION: Since 1 January 2004, all physicians, psychotherapists and medical care centres on contracts with statutory healthcare in Germany are obliged according to § 135a section 2, no. 2 of the Fifth Social Security Statute Book to introduce and develop an intra-institutional quality management system. Thus, physicians are faced with the question of which quality management system is best suited to their own practice. METHODS: A total of 24 medical practices were chosen by random sampling. The sample was collected in Saxony because the Health Insurance Physicians Unification Saxony provided the necessary information. First, 2 primary units were determined from the basic population. In the following step, a sample was taken for each primary unit using 3 quality management systems. The analysis was carried out with the help of three specially developed questionnaires (physician, employee and patient). The individual questions were developed independently of a quality management system. The basis was formed by the guidelines of the Federal Joint Committee, which describes the concrete contents of the quality categories. A total of 26 quality categories with different questions were available in the 3 survey groups. For the analysis of the data, the arithmetic mean was formed in the individual question complexes. Subsequently, a variance analysis was used to test whether the systems differed statistically significantly on average. Taking into account the costs of the individual quality management systems and their introduction, the effect size was finally analyzed according to η2 and Cohen's d. Finally, a cost-benefit analysis was carried out by researching the direct/indirect costs of the various quality management systems through a literature study. RESULTS: Based on model documents and process support, the "Quality and Development in Practices" had the highest score. Due to a specific family practitioner specialty, "Quality management systems in Saxony medical practices" had the next best scores. The individual quality categories such as the 'range of services' or 'treatment pathways and guidelines' indicate significant differences and sustained effect sizes between quality management systems. CONCLUSION: The assessment of quality management systems shows significant differences. The specific differences between the systems can be explained by the differences in process tools.

Continuous improvement projects: an authorship bibliometric analysis.

Purpose The purpose of this paper is to describe the current research on hospital continuous improvement projects (CIPs) from an author characteristics' perspective. This work addresses the following questions: who are the predominant research authors in hospital CIPs? To what extent are the research communities collaborating in distinct research groups? How internationalized has hospital CIPs research become with respect to author location? Design/methodology/approach A systematic literature review was conducted, identifying 302 academic publications related to hospital CIPs. Publications were analyzed using: author, quantity, diversity, collaboration, and impact. Findings Hospital CIPs are increasingly attracting new scholars each year. Based on the authors' analysis, authors publishing in this area can be described as a relatively new international community given the countries represented. Originality/value This paper describes the current hospital CIP research by assessing author characteristics. Future work should examine additional attributes to characterize maturity such as how new knowledge is being created and to what extent new knowledge is being disseminated to practitioners.

[Evaluation of a Self-Help Supported Counseling Concept for Children and Adolescents with Disproportional Short Stature]. / Evaluation eines selbsthilfegestützten psychosozialen Interventionsangebotes für Kinder und Jugendliche mit disproportionalem Kleinwuchs.

BACKGROUND: Disproportionate short stature may impair the quality of life (QoL) of patients and their families. This study aimed to evaluate a self-help supported counseling concept to increase the QoL of the participants. METHODS: QoL data from 58 children/adolescents (8-17 years) with a diagnosis of achondroplasia was collected at 2 measurement points during one year using the the QoLISSY questionnaire (self-/parental report). Differences before and after participation vs. non-participation in the intervention were evaluated using a linear mixed model. RESULTS: The longitudinal results show a greater increase of QoL in the active intervention group compared to a passive control group (p=0,005). The increase in the self-reported QoL of affected patients was significantly higher than for the parent-report (p=0,048). CONCLUSIONS: The study shows that patients with achondroplasia benefit from a self-help supported counseling concept. However, this should be tested in a randomized trial.

[Evaluation and Utilization - Quality Management in a Paediatric University Outpatient Department]. / Evaluation und Inanspruchnahme - Qualitätssicherung in der pädiatrischen Ambulanz einer Universitätsklinik.

BACKGROUND: Based on an increasing number of outpatient treatments, an extensive demand planning is necessary to ensure the quality of medical care. University outpatient clinics are special parts of this sector and therefore it is necessary that a research demonstrates the nearly uninvestigated position of a paediatric outpatient clinic. PATIENTS: The research at the university hospital for children and adolescents in Leipzig started in 2009 to survey 2283 of in total 9391 patients and the physicians. METHODS: Sociodemographic data as well as economic and medical facts were determined by using questionnaires. In each case a questionnaire was answered by the children or their accompanying persons and a separate one was completed by the respective doctor. RESULTS: The results created a foundation, on the basis of patient volume per day and per daytime. Less than 20% of the children admitted to consult the clinic for their first time. The majority of patients visit them because of a letter of referral. Most of the patients (58%) were younger than 6 years old. Approximately 35% of patients did not come from the city region of Leipzig. CONCLUSION: The investigation evidenced the necessity of a day and night operating institution for children in the region of Leipzig as well as the high specialisation of the outpatient clinic. In need of further investigation is the cooperation between several physicians to find out if this lots of medical examination are necessary or if there took place overlapping.

[The way the quality of health services is perceived and treated by the managerial personnel of public hospitals]. / Postrzeganie jakosci szpitalnych swiadczen zdrowotnych przez kadre zarzadcza szpitali publicznych.

BACKGROUND: Managerial knowledge and skills as well as profound understanding of goals and objectives of management determine the effectiveness and efficiency in all areas of managerial activities. In particular, this applies to the quality of healthcare services, perceived as a compliance between the effects (of medical treatment) and the assumed relevant objectives (defined/desired health condition). The aim of the research was to distinguish and define the way the health service quality is perceived by the hospital managerial personnel. MATERIAL AND METHODS: The questionnaire was mailed to 836 members of the managerial personnel of public hospitals in the Lódz province. Of this number 122 questionnaires were returned. RESULTS: Only 22 (18.49%) of respondents presented the definition of quality. Attempts to meet patients' expectations and to satisfy them were found to be the prevailing perception of the healthcare quality and 96.64% of respondents considered competences of medical staff contributory. Almost 64% of respondents disagree with the opinion that the number of medical staff does not affect the service quality. According to the respondents, a 46% increase in financial resources on average could significantly improve the quality of healthcare services. More than half (66.76%) of respondents claim that healthcare services that are available cover 82% of patients' needs. Almost 57% (56.52%) of respondents consider that the subordinate- superior relationship influences their work involvement. According to 42.61% of respondents, the offered incentives encourage actions for the quality improvement. CONCLUSIONS: The results of the research indicate the need to develop a clear cut definition of the health service quality by the managerial personnel of public hospitals and to change their understanding, perception and treatment of the discussed issue, which provides a basis for the effective and efficient hospital management. Med Pr 2016;67(3):365-373.

[Evaluation of intra-organisational effects after use of certification programmes in hospital]. / Evaluation einrichtungsinterner Effekte nach Durchführung eines Zertifizierungsverfahrens im Krankenhaus.

AIM: The introduction of quality management systems might be promoted by use of recognised certification programmes. Over the years, in health care organisations the certification model named KTQ has gained more and more importance. The aim of this study is to evaluate intra-organisational effects in a clinic after introduction of quality management on the basis of KTQ. METHODS: The evaluation was performed using a 2-step approach: first, before starting the implementation process of KTQ in the year 2008, and second, after the implementation process had become successful. Data were obtained by a systematic questionnaire survey. Hospital staff (physicians, nurses, and others like administration staff, technical and medical assistants) were asked to appraise the quality management, to give own preferences, and rate their overall satisfaction with the process. RESULTS: Response rates were 56% in the year 2008 and 50% in the year 2010. Subjects regarding the working atmosphere, leading of superiors, organisational issues, and pervasion of quality management predominantly were found to be improved, almost with high statistical significance. At the same time, higher satisfaction values could be determined. CONCLUSIONS: There might be high acceptance to the undergone changes from the staff members' point of view. It appears that the implementation process has led to higher satisfaction values. Moreover it can be concluded that certification programmes might be able to promote the needed pervasion of quality management throughout the institution.

Establishing the quality management baseline in the use of computed tomography machines in Kenya.

The objective of this study was to assess the level of compliance to quality assurance and image quality standards in computed tomography facilities in Kenyan hospitals. A quality assurance inspection and physical image quality assessment in eighteen representative computed tomography facilities were completed. A quantitative method was developed and used to score the results obtained from the physical image quality measurements using the American Association of Physicists in Medicine (AAPM) water phantom. Inspection was done in order to establish the level of compliance with internationally recognized standards such as those stipulated in the European Guidelines Quality Criteria for Computed Tomography and the International Basic Safety Standards for Protection against Ionizing Radiation. The overall findings placed the national quality management performance at 50 ± 3%, while image quality and quality assurance performance were 61 ± 3% and 37 ± 3%, respectively. The quality assurance assessment benchmarked the country's level of quality management system compliance in diagnostic radiology. During accreditation appraisal, the scrutiny of scores from each stage in the medical imaging chain per facility will encourage continual implementation of the quality improvement process.

[Analysis medical staff opinion according to quality management in health care]. / Analiza opinii personelu medycznego dotyczaca zarzadzania jakoscia w ochronie zdrowia.

UNLABELLED: The practice of documenting the credibility of quality management system of companies in the medical sector in Poland does not have a long history. In the recent years hospitals have started to work in a system similar to a competitive market with features specific for medical service preserved. As a result quality focused activity instruments were introduced to the medical service market, such as ISO family of standards. The aim of the work objective was to get to know the opinion of medical staff about the changes resulting in the quality management system implementation. MATERIAL AND METHODS: The answers of a team of 200 medical staff from two Polish hospitals were analysed. The respondents were employed in medical institutions before and after the introduction of ISO 9001. RESULTS: A large number of participants claimed that standardization in work organization made a significant improvement (45.50%, n = 91), but part of them (36.50%, n = 73) claimed that this new organization improved the situation not very much. And a small group (18,00%, n = 36) said that the organization did not change after the introduction of standardization. Nurses and medical rescue workers more often claimed (the result being statistically significant) that their work organization improved after the standardization implementation (48.54%), differently from doctors (27.59%, p = 0.008). Doctors in the research often claimed that the changes after the introduction of standardization caused an increase in the requirements of their professional qualifications (79.13%), but the nurses and medical rescue workers found it a bit less (74.85%). Most participants (87.50%, n = 175) claimed that the changes which appeared as a result of the introduction of standardization motivated them to compete against others health care institutions. CONCLUSIONS: Medical staff in the research claimed that the changes after the introduction of standardization resulted in work organization improvement. Nurses and medical rescue workers more often claimed (the result being statistically significant) that their work organization improved after the standard implementation. Most of the respondents were convinced about the benefits of standardization implementation. Changes that took place as a result of the introduction of quality management system based on ISO are a motivating factor for competing against other health care institutions. The system of quality insurance based on ISO is constructed in such a way so as to strive for satisfying constantly changing customers' needs, because quality is not an ideal notion but a goal that needs to be pursued.

Evidence of disparity in the application of quality improvement efforts for the treatment of acute myocardial infarction: the American College of Cardiology's Guidelines Applied in Practice Initiative in Michigan.

BACKGROUND: Racial disparities exist in the management of patients with cardiovascular disease in the United States. The aim of the study was to evaluate if a structured initiative for improving care of patients with acute myocardial infarction (Guidelines Applied in Practice [GAP]) led to comparable care of white and nonwhite patients admitted to GAP hospitals in Michigan. METHODS: Medicare patients comprised 2 cohorts: (1) those admitted before GAP implementation (n = 1,368) and (2) those admitted after GAP implementation (n = 1,489). The main outcome measure was adherence to guideline-based medications/recommendations and use of the GAP discharge tool. chi(2) and Fisher exact tests were used to determine differences between white patients (n = 2,367) and nonwhite patients (n = 490). RESULTS: In-hospital GAP tool and aspirin use significantly improved for white and nonwhite patients. beta-Blocker use in hospital improved significantly for nonwhite patients only (66% vs 83.3%; P = .04). At discharge, nonwhite patients were 28% and 64% less likely than white patients to have had the GAP discharge tool used (P = .004) and receive smoking cessation counseling (P < .001), respectively. Among white patients, GAP improved discharge prescription rates for aspirin by 10.8% (P < .001) and beta-blockers by 7.0% (P = .047). Nonwhite patients' aspirin prescriptions increased by 1.0% and beta-blocker prescriptions decreased by 6.0% (both P values nonsignificant). CONCLUSIONS: The GAP program led to significant increases in rates of evidence-based care in both white and nonwhite Medicare patients. However, nonwhite patients received less quality improvement discharge tool and smoking cessation counseling. Policies designed to reduce racial disparities in health care must address disparity in the delivery of quality improvement programs.

How to measure the quality of the OSCE: A review of metrics - AMEE guide no. 49.

With an increasing use of criterion-based assessment techniques in both undergraduate and postgraduate healthcare programmes, there is a consequent need to ensure the quality and rigour of these assessments. The obvious question for those responsible for delivering assessment is how is this 'quality' measured, and what mechanisms might there be that allow improvements in assessment quality over time to be demonstrated? Whilst a small base of literature exists, few papers give more than one or two metrics as measures of quality in Objective Structured Clinical Examinations (OSCEs). In this guide, aimed at assessment practitioners, the authors aim to review the metrics that are available for measuring quality and indicate how a rounded picture of OSCE assessment quality may be constructed by using a variety of such measures, and also to consider which characteristics of the OSCE are appropriately judged by which measure(s). The authors will discuss the quality issues both at the individual station level and across the complete clinical assessment as a whole, using a series of 'worked examples' drawn from OSCE data sets from the authors' institution.

Improving service quality by understanding emergency department flow: a White Paper and position statement prepared for the American Academy of Emergency Medicine.

Emergency Department (ED) crowding is a common problem in the United States and around the world. Process reengineering methods can be used to understand factors that contribute to crowding and provide tools to help alleviate crowding by improving service quality and patient flow. In this article, we describe the ED as a service business and then discuss specific methods to improve the ED quality and flow. Methods discussed include demand management, critical pathways, process-mapping, Emergency Severity Index triage, bedside registration, Lean and Six Sigma management methods, statistical forecasting, queuing systems, discrete event simulation modeling and balanced scorecards. The purpose of this review is to serve as a background for emergency physicians and managers interested in applying process reengineering methods to improving ED flow, reducing waiting times, and maximizing patient satisfaction. Finally, we present a position statement on behalf of the American Academy of Emergency Medicine addressing these issues.

National quality measurement using clinical indicators: the Danish National Indicator Project.

This article describes the Danish National Indicator Project that aims to document and improve the quality of care at national level. Specific clinical indicators, standards, and prognostic factors have been developed for eight diseases (e.g. lung cancer). It has been implemented in all clinical departments in Denmark. Participation is mandatory. Results related to lung cancer are presented and discussed. The experiences from 2000 to 2008 indicate that the quality of care related to the eight diseases improve over time and that that performance and outcome measurement will get paid in terms of quality improvement.

Utilization of lean management principles in the ambulatory clinic setting.

The principles of 'lean management' have permeated many sectors of today's business world, secondary to the success of the Toyota Production System. This management method enables workers to eliminate mistakes, reduce delays, lower costs, and improve the overall quality of the product or service they deliver. These lean management principles can be applied to health care. Their implementation within the ambulatory care setting is predicated on the continuous identification and elimination of waste within the process. The key concepts of flow time, inventory and throughput are utilized to improve the flow of patients through the clinic, and to identify points that slow this process -- so-called bottlenecks. Nonessential activities are shifted away from bottlenecks (i.e. the physician), and extra work capacity is generated from existing resources, rather than being added. The additional work capacity facilitates a more efficient response to variability, which in turn results in cost savings, more time for the physician to interact with patients, and faster completion of patient visits. Finally, application of the lean management principle of 'just-in-time' management can eliminate excess clinic inventory, better synchronize office supply with patient demand, and reduce costs.

Quality management and patient safety: survey results from 102 Hungarian hospitals.

OBJECTIVES: The aim of this study is to describe the development of quality management systems in Hungarian hospitals. It also aims to answer the policy question, whether a separate patient safety policy should be created additional to quality policies, on national as well as hospital level. METHOD: In 2005, a questionnaire survey was conducted to evaluate the existing quality management systems in all Hungarian hospitals. The relationship between the level of the development of quality management systems, the certification status and the current level of patient safety activities was investigated using linear regression. Quality was measured with the quality management system development score (QMSDS), and patient safety by the number of patient safety activities. RESULTS: 102 of 134 (76%) of the hospitals have returned the questionnaire. The average hospital has 24.5 of 35 core quality activities, and 4 of 11 patient safety activities. There is a statistically significant but weak relationship between the QMSDS and the number of patient safety activities, explaining 12% of the latter's variance. Certification (International Standards Organisation (ISO) and professional standard based) is not significantly related to patient safety. CONCLUSIONS: In our study quality by QMSDS is weakly related; however, certification is not significantly related to patient safety. We conclude that separate patient safety policies seem worthwhile to be created for the hospital sector in addition to the ongoing quality improvement efforts in Hungary.

Hospital innovativeness and organizational performance: evidence from English public acute care.

BACKGROUND: Hospitals around the world dedicate increasing attention and resources to innovation. However, surprisingly little is known about the nature of hospital innovativeness and its relationship with organizational performance. Given both the specific characteristics of the hospital sector and the rather mixed evidence from other industries, a positive innovation-performance link should not be taken for granted but requires empirical examination. PURPOSES: The purposes of this study were to introduce a perspective of hospitals as vital generators of innovation, to unpack the concept of innovativeness, to propose a measurement model for hospital innovativeness, and to empirically investigate the innovativeness-performance relationship. METHODOLOGY: We conducted a large-scale empirical study among the entire population of public hospital organizations that are part of the English National Health Service (n = 173) and analyzed the data using exploratory factor and regression analyses. FINDINGS: Our analyses suggest a significant positive relationship between science- and practice-based innovativeness and clinical performance but provide less unambiguous support for the existence of such a relationship between innovativeness and administrative performance. In particular, we find that higher levels of innovativeness are rather associated with superior quality of care than with measurable bottom-line financial benefits. PRACTICE IMPLICATIONS: Hospitals investing in innovation-generating activities might find their efforts well rewarded in terms of tangible clinical performance improvements. However, to achieve measurable financial benefits, numerous hospitals have yet to discover and capture the commercial value of some of their innovations-a challenging task that requires a holistic innovation management and an effective network of complementary partners.

Factors affecting patient satisfaction and healthcare quality.

PURPOSE: The aim of this paper is to build a comprehensive conceptual model to understand and measure variables affecting patient satisfaction-based healthcare quality. DESIGN/METHODOLOGY/APPROACH: A total of 24 articles from international journals were systematically reviewed for factors determining patient satisfaction and healthcare quality. FINDINGS: Patient satisfaction is a multi-dimensional healthcare construct affected by many variables. Healthcare quality affects patient satisfaction, which in turn influences positive patient behaviours such as loyalty. Patient satisfaction and healthcare service quality, though difficult to measure, can be operationalized using a multi-disciplinary approach that combines patient inputs as well as expert judgement. RESEARCH LIMITATIONS/IMPLICATIONS: The paper develops a conceptual model that needs to be confirmed empirically. Also, most research pertains to developed countries. Findings are presented that may not be generalized to developing nations, which may be quite different culturally. PRACTICAL IMPLICATIONS: The paper has direct implications for health service providers. They are encouraged to regularly monitor healthcare quality and accordingly initiate service delivery improvements to maintain high levels of patient satisfaction. ORIGINALITY/VALUE: The paper collates and examines recent healthcare quality study findings. It presents a comprehensive, conceptual model encompassing research work and a holistic view of various aspects affecting patient satisfaction and healthcare quality. Although a large amount of healthcare quality research has been done, each studying a particular service, this paper comprehensively brings together various research findings.

Analysis and Evaluation of Reviews on Lean and Six Sigma in Health Care.

BACKGROUND AND OBJECTIVES: Health care is a complex industry in which professionals are facing the challenge of balancing lower costs with better health and quality of care. To remain competitive, health care organizations have promoted the use of Lean and Six Sigma in various settings. More than 300 refereed English-language articles about Lean and/or Six Sigma in health care are found in the literature, and many reviews have been published on this subject. METHODS: This article characterizes the literature by evaluating and classifying 22 reviews, based on year of publication, country, taxonomy, health care setting, outcome, tools, and enabling factors, in order to identify gaps in the literature and set new directions for research. RESULTS: Findings indicate that 90% of reviews are characterized by restrictive inclusion criteria that result in the inclusion of only 3% to 66% of the literature at the corresponding time. Furthermore, there is no full comprehensive literature review available on Lean and Six Sigma in health care. Other gaps in the literature include more studies with better research design, broader applications in various health care settings and various countries, sustainability assessment and long-term effects, and evidence of failed Lean and Six Sigma implementations. CONCLUSION: This study provides an updated starting point for future research to researchers and practitioners in the field.

The fishery performance indicators for global tuna fisheries.

We characterize the ecological, economic, and community performance of 21 major tuna fisheries, accounting for at least 77% of global tuna production, using the Fishery Performance Indicators. Our analysis reveals that the biggest variations in performance among tuna fisheries are driven by the final markets that they target: international sashimi market tuna fisheries considerably outperform a comparison set of 62 non-tuna fisheries in the Fishery Performance Indicator database, international canned tuna market fisheries perform similarly to the comparison set, and tuna fisheries supplying local markets in coastal states considerably underperform the comparison set. Differences among regional fishery management organizations primarily reflect regional species composition and market access, despite stark variation in governance, management, and other enabling conditions. With a legacy of open access, tuna's harvest sector performance is similar across all fisheries, reflecting only a normal return on the capital and skill invested: industrial vessels slightly outperform semi-industrial and artisanal vessels. Differences emerge in the post-harvest sector however, as value chains able to preserve quality and transport fish to high value markets outperform others.