A systematic review of medical practice variation in OECD countries

Rationing in health systems: A critical review

Background: It is difficult to provide health care services to all those in need of such services due to limited resources and unlimited demands. Thus, priority setting and rationing have to be applied. This study aimed at critically examining the concept of rationing in health sector and identifying its purposes, influencing factors, mechanisms, and outcomes. Methods: The critical interpretive synthesis methodology was used in this study. PubMed, Cochrane, and Proquest databases were searched using the related key words to find related documents published between 1970 and 2015. In total, 161 published reports were reviewed and included in the study. Thematic content analysis was applied for data analysis. Results: Health services rationing means restricting the access of some people to useful or potentially useful health services due to budgetary limitation. The inherent features of the health market and health services, limited resources, and unlimited needs necessitate health services rationing. Rationing can be applied in 4 levels: health care policy- makers, health care managers, health care providers, and patients. Health care rationing can be accomplished through fixed budget, benefit package, payment mechanisms, queuing, copayments, and deductibles. Conclusion: This paper enriched our understanding of health services rationing and its mechanisms at various levels and contributed to the literature by broadly conceptualizing health services rationing.

Evidence for overuse of medical services around the world

Overuse, which is defined as the provision of medical services that are more likely to cause harm than good, is a pervasive problem. Direct measurement of overuse through documentation of delivery of inappropriate services is challenging given the difficulty of defining appropriate care for patients with individual preferences and needs; overuse can also be measured indirectly through examination of unwarranted geographical variations in prevalence of procedures and care intensity. Despite the challenges, the high prevalence of overuse is well documented in high-income countries across a wide range of services and is increasingly recognised in low-income countries. Overuse of unneeded services can harm patients physically and psychologically, and can harm health systems by wasting resources and deflecting investments in both public health and social spending, which is known to contribute to health. Although harms from overuse have not been well quantified and trends have not been well described, overuse is likely to be increasing worldwide.

Regional Variation of Cost of Care in the Last 12 Months of Life in Switzerland: Small-area Analysis Using Insurance Claims Data

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Background:

Health care spending increases sharply at the end of life. Little is known about variation of cost of end of life care between regions and the drivers of such variation. We studied small-area patterns of cost of care in the last year of life in Switzerland.

Methods:

We used mandatory health insurance claims data of individuals who died between 2008 and 2010 to derive cost of care. We used multilevel regression models to estimate differences in costs across 564 regions of place of residence, nested within 71 hospital service areas. We examined to what extent variation was explained by characteristics of individuals and regions, including measures of health care supply.

Results:

The study population consisted of 113,277 individuals. The mean cost of care during last year of life was 32.5k (thousand) Swiss Francs per person (SD=33.2k). Cost differed substantially between regions after adjustment for patient age, sex, and cause of death. Variance was reduced by 52%–95% when we added individual and regional characteristics, with a strong effect of language region. Measures of supply of care did not show associations with costs. Remaining between and within hospital service area variations were most pronounced for older females and least for younger individuals.

Conclusions:

In Switzerland, small-area analysis revealed variation of cost of care during the last year of life according to linguistic regions and unexplained regional differences for older women. Cultural factors contribute to the delivery and utilization of health care during the last months of life and should be considered by policy makers.

A Practical Framework for Understanding and Reducing Medical Overuse: Conceptualizing Overuse Through the Patient-Clinician Interaction

Overuse of medical services is an increasingly recognized driver of poor-quality care and high cost. A practical framework is needed to guide clinical decisions and facilitate concrete actions that can reduce overuse and improve care. We used an iterative, expert-informed, evidence-based process to develop a framework for conceptualizing interventions to reduce medical overuse. Given the complexity of defining and identifying overused care in nuanced clinical situations and the need to define care appropriateness in the context of an individual patient, this framework conceptualizes the patient-clinician interaction as the nexus of decisions regarding inappropriate care. This interaction is influenced by other utilization drivers, including healthcare system factors, the practice environment, the culture of professional medicine, the culture of healthcare consumption, and individual patient and clinician factors. The variable strength of the evidence supporting these domains highlights important areas for further investigation. Journal of Hospital Medicine 2017;12:346-351.

Impact of Disease Prevalence Adjustment on Hospitalization Rates for Chronic Ambulatory Care-Sensitive Conditions in Germany

OBJECTIVES

To explore effects of disease prevalence adjustment on ambulatory care-sensitive hospitalization (ACSH) rates used for quality comparisons.

DATA SOURCES/STUDY SETTING

County-level hospital administrative data on adults discharged from German hospitals in 2011 and prevalence estimates based on administrative ambulatory diagnosis data were used.

STUDY DESIGN

A retrospective cross-sectional study using in- and outpatient secondary data was performed.

DATA COLLECTION

Hospitalization data for hypertension, diabetes, heart failure, chronic obstructive pulmonary disease, and asthma were obtained from the German Diagnosis Related Groups (DRG) database. Prevalence estimates were obtained from the German Central Research Institute of Ambulatory Health Care.

PRINCIPAL FINDINGS

Crude hospitalization rates varied substantially across counties (coefficients of variation [CV] 28-37 percent across conditions); this variation was reduced by prevalence adjustment (CV 21-28 percent). Prevalence explained 40-50 percent of the observed variation (r = 0.65-0.70) in ACSH rates for all conditions except asthma (r = 0.07). Between 30 percent and 38 percent of areas moved into or outside condition-specific control limits with prevalence adjustment.

CONCLUSIONS

Unadjusted ACSH rates should be used with caution for high-stakes public reporting as differences in prevalence may have a marked impact. Prevalence adjustment should be considered in models analyzing ACSH.

Variation in tonsillectomy rates by health care system type

OBJECTIVE

To analyze variation in tonsillectomy procedure rates between health care system types around the world.

STUDY DESIGN

International database analysis.

METHODS

The 2015 Organization for Economic Co-operation and Development (OECD) Health Statistics surgical procedures database was used to ascertain tonsillectomy procedure volumes for 31 countries. Each country's health system type and structure were classified by overall system type, and by health care regulation, financing, and provision methods. Each system type and structure variable were compared using the rate of tonsillectomy procedures per 100,000 citizens.

RESULTS

10.5 million tonsillectomy procedures completed between 1993 and 2014 were analyzed. Overall, social health insurance system types had higher total tonsillectomy rates versus other health care system types (p < 0.05 for each comparison). Health systems with private care provision had a higher procedure rate versus state provided care (159.1 vs. 131.1 per 100,000 citizens; p = 0.002). Health care systems with societal regulation and financing had a higher procedure count versus state regulated or financed care (regulation 193.3 vs. 139.7 per 100,000 citizens, p < 0.0001; financing 168.2 vs. 135.0 per 100,000 citizens, p = 0.0004).

CONCLUSIONS

The volume of tonsillectomy procedures is associated with a health care system's overall structure, regulation, financing, and provision methods. International health care systems with state mediated provision, regulation, and financing had lower tonsillectomy rates versus systems with private provision, and societal regulation or financing. Further study is needed to determine differences in indications for tonsillectomy between countries, but these results underscore potential variation in health care delivery in different systems.

Medical care epidemiology and unwarranted variation: the Israeli case

In an article in this Journal, Mendlovic and colleagues report on regional variation in medical care across Israeli regions. This study joins a growing literature demonstrating generally high variation in the provision of health care services within developed countries. This commentary summarizes the status of medical care epidemiology and its studies of unwarranted variation in health care, and provides a conceptual framework to guide future studies. Recommendations are offered for advancing studies in Israel that could guide policy development and clinical improvement.

Caesarean sections and for-profit status of hospitals: systematic review and meta-analysis

OBJECTIVE

Financial incentives may encourage private for-profit providers to perform more caesarean section (CS) than non-profit hospitals. We therefore sought to determine the association of for-profit status of hospital and odds of CS.

DESIGN

Systematic review and meta-analysis.

DATA SOURCES

MEDLINE, EMBASE and the Cochrane Database of Systematic Reviews from the first year of records through February 2016.

ELIGIBILITY CRITERIA

To be eligible, studies had to report data to allow the calculation of ORs of CS comparing private for-profit hospitals with public or private non-profit hospitals in a specific geographic area.

OUTCOMES

The prespecified primary outcome was the adjusted OR of births delivered by CS in private for-profit hospitals as compared with public or private non-profit hospitals; the prespecified secondary outcome was the crude OR of CS in private for-profit hospitals as compared with public or private non-profit hospitals.

RESULTS

15 articles describing 17 separate studies in 4.1 million women were included. In a meta-analysis of 11 studies, the adjusted odds of delivery by CS was 1.41 higher in for-profit hospitals as compared with non-profit hospitals (95% CI 1.24 to 1.60) with no relevant heterogeneity between studies (τ²≤0.037). Findings were robust across subgroups of studies in stratified analyses. The meta-analysis of crude estimates from 16 studies revealed a somewhat more pronounced association (pooled OR 1.84, 95% CI 1.49 to 2.27) with moderate-to-high heterogeneity between studies (τ²≥0.179).

CONCLUSIONS

CS are more likely to be performed by for-profit hospitals as compared with non-profit hospitals. This holds true regardless of women's risk and contextual factors such as country, year or study design. Since financial incentives are likely to play an important role, we recommend examination of incentive structures of for-profit hospitals to identify strategies that encourage appropriate provision of CS.

Regional Differences in the Prescription of Biologics for Psoriasis in Sweden: A Register-Based Study of 4168 Patients

BACKGROUND

Observational studies suggest an inequitable prescription of biologics in psoriasis care, which may be attributed to geographical differences in treatment access. Sweden regularly ranks high in international comparisons of equitable healthcare, and is, in connection with established national registries, an ideal country to investigate potential inequitable access.

OBJECTIVE

The aim was to determine whether the opportunity for patients to receive biologics depends on where they receive care.

METHODS

Biologic-naïve patients enrolled in the Swedish National Register for Systemic Treatment of Psoriasis (PsoReg) from 2008 to 2015 (n = 4168) were included. The association between the likelihood of initiating a biologic and the region where patients received care was analyzed. The strength of the association was adjusted for patient and clinical characteristics, as well as disease severity using logistic regression analysis. The proportion of patients that switched to a biologic (switch rate) and the probability of switch to a biologic was calculated in 2-year periods.

RESULTS

The national switch rate increased marginally over time from 9.7 to 11.0%, though the uptake varied across regions. Adjusted odds ratios for at least one region were significantly different from the reference region in every 2-year period. During the latest period (2014-2015), the average patient in the lowest prescribing region was nearly 2.5 times less likely to switch as a similar patient in the highest prescribing region.

CONCLUSIONS

Geographical differences in biologics prescription persist after adjusting for patient characteristics and disease severity. The Swedish example calls for further improvements in delivering equitable psoriasis care.

Healthcare Provider Type and Switch to Biologics in Psoriasis: Evidence from Real-World Practice

BACKGROUND

Previous research indicates an uneven uptake of biologics in patients with moderate-to-severe psoriasis in Sweden. Therefore, it is essential to scrutinise variations in treatment patterns.

OBJECTIVE

The aim of this study was to evaluate the extent to which the uptake of biologics for psoriasis differs between types of healthcare provider.

METHODS

Three types of provider were identified within 52 units participating in the Swedish National Registry for Systemic Psoriasis Treatment (PsoReg): university hospitals, non-university hospitals and individual practices. Biologics-naïve patients (n = 3165) were included in analyses to investigate the probability of switch to biologics. The numbers of patients fulfilling the criteria for moderate-to-severe psoriasis [Psoriasis Area and Severity Index (PASI) ≥10 and Dermatology Life Quality Index (DLQI) ≥10] among patients who switched to biologics and patients who did not switch were reported. A logistic regression model was used to calculate how healthcare provider type influenced the probability of switch to biologics whilst adjusting for patient characteristics and disease severity.

RESULTS

During registration, 16% of patients switched to biologics while 84% remained on conventional systemic treatment. In 7% of patients, the criteria PASI ≥10 and DLQI ≥10 was fulfilled at their last visit without switching to biologics, whereas in 10% of patients the criteria was not fulfilled prior to switch. After controlling for patient characteristics and disease severity, small or no difference in the probability of switch was observed between provider types.

CONCLUSIONS

Disease severity does not explain the decision to switch or not to switch to biologics for a disproportionate number of patients. There seems to be an uneven uptake of biologics in Swedish clinical practice, but the type of healthcare provider cannot explain this variation. More research is needed on what factors influence the prescription of biologics.

Geographic variation in potentially avoidable hospitalizations in France

Potentially avoidable hospitalizations are studied as an indirect measure of access to primary care. Understanding the determinants of these hospitalizations can help improve the quality, efficiency, and equity of health care delivery. Few studies have tackled the issue of potentially avoidable hospitalizations in France, and none has done so at the national level. We assessed disparities in potentially avoidable hospitalizations in France in 2012 and analyzed their determinants. The standardized rate of potentially avoidable hospitalizations ranged from 0.1 to 44.4 cases per 1,000 inhabitants, at the ZIP code level. Increased potentially avoidable hospitalizations were associated with higher mortality, lower density of acute care beds and ambulatory care nurses, lower median income, and lower education levels. This study unveils considerable variation in the rate of potentially avoidable hospitalizations in spite of France's mandatory, publicly funded health insurance system. In addition to epidemiological and sociodemographic factors, this study suggests that primary care organization plays a role in geographic disparities in potentially avoidable hospitalizations that might be addressed by increasing the number of nurses and enhancing team work in primary care. Policy makers should consider measuring potentially avoidable hospitalizations in France as an indicator of primary care organization.

A system dynamics model of clinical decision thresholds for the detection of developmental-behavioral disorders

Background

Clinical decision-making has been conceptualized as a sequence of two separate processes: assessment of patients’ functioning and application of a decision threshold to determine whether the evidence is sufficient to justify a given decision. A range of factors, including use of evidence-based screening instruments, has the potential to influence either or both processes. However, implementation studies seldom specify or assess the mechanism by which screening is hypothesized to influence clinical decision-making, thus limiting their ability to address unexpected findings regarding clinicians’ behavior. Building on prior theory and empirical evidence, we created a system dynamics (SD) model of how physicians’ clinical decisions are influenced by their assessments of patients and by factors that may influence decision thresholds, such as knowledge of past patient outcomes. Using developmental-behavioral disorders as a case example, we then explore how referral decisions may be influenced by changes in context. Specifically, we compare predictions from the SD model to published implementation trials of evidence-based screening to understand physicians’ management of positive screening results and changes in referral rates. We also conduct virtual experiments regarding the influence of a variety of interventions that may influence physicians’ thresholds, including improved access to co-located mental health care and improved feedback systems regarding patient outcomes.

Results

Results of the SD model were consistent with recent implementation trials. For example, the SD model suggests that if screening improves physicians’ accuracy of assessment without also influencing decision thresholds, then a significant proportion of children with positive screens will not be referred and the effect of screening implementation on referral rates will be modest—results that are consistent with a large proportion of published screening trials. Consistent with prior theory, virtual experiments suggest that physicians’ decision thresholds can be influenced and detection of disabilities improved by increasing access to referral sources and enhancing feedback regarding false negative cases.

Conclusions

The SD model of clinical decision-making offers a theoretically based framework to improve understanding of physicians’ behavior and the results of screening implementation trials. The SD model is also useful for initial testing of hypothesized strategies to increase detection of under-identified medical conditions.

Electronic supplementary material

The online version of this article (doi:10.1186/s13012-016-0517-0) contains supplementary material, which is available to authorized users.

Variability in the frequency of rheumatology consultations in patients with rheumatoid arthritis in Spain

The aim of this work was to assess the variability in the use of health-care resources, based on the number of visits to rheumatology departments by rheumatoid arthritis patients, in Spain, and its association with patient, physician and center characteristics. The sample consisted of patient records of men and women (aged 16 or older), with a clinical diagnosis of RA, who met the American Rheumatism Association 1987 revised criteria and who had been treated in a rheumatology department at a Spanish hospital with at least one visit to a rheumatologist during the two years preceding the date of the study. To analyze which variables were independently associated with the number of consultations, those with a statistically significant result in the bivariate analysis, or which were clinically relevant or deemed confounders, were used in the construction of a linear regression model. The records of 1188 RA patients were studied. The linear regression model explained the 26.67 % of the variability in the number of visits. The number of csDMARDs prescribed, the administration of biological therapy, corticoid prescription, the presence of nursing consultation, mean time to first visit in the department and attended population showed a positive significant association, while the presence of telephone consultation, distance from the hospital to the patient´s residence (≥20 km) and drug monitoring by rheumatology department + primary care physician or by other specialists were negatively associated with the number of consultations. We observed a high variability in the number of visits, which remains partially unexplained even after taking into account individual, physician and center characteristics.

A randomized controlled trial to compare a restrictive strategy to usual care for the effectiveness of cholecystectomy in patients with symptomatic gallstones (SECURE trial protocol)

Background

Five to 22 % of the adult Western population has gallstones. Among them, 13 to 22 % become symptomatic during their lifetime. Cholecystectomy is the preferred treatment for symptomatic cholecystolithiasis. Remarkably, cholecystectomy provides symptom relief in only 60-70 % of patients. The objective of this trial is to compare the effectiveness of usual (operative) care with a restrictive strategy using a standardized work-up with stepwise selection for cholecystectomy in patients with gallstones and abdominal complaints.

Design and methods

The SECURE-trial is designed as a multicenter, randomized, parallel-arm, non-inferiority trial in patients with abdominal symptoms and ultrasound proven gallstones or sludge. If patients meet the inclusion criteria they will be randomized to either usual care or the restrictive strategy.

Patients in the usual care group will be treated according to the physician’s knowledge and preference. Patients in the restrictive care group will be treated with interval evaluation and stepwise selection for laparoscopic cholecystectomy. In this stepwise selection, patients strictly meeting the preselected criteria for symptomatic cholecystolithiasis will be offered a cholecystectomy. Patients not meeting these criteria will be assessed for other diagnoses and re-evaluated at 3-monthly intervals. Follow-up consists of web-based questionnaires at 3, 6, 9 and 12 months.

The main end point of this trial is defined as the proportion of patients being pain-free at 12 months follow-up. Pain will be assessed with the Izbicki Pain Score and Gallstone Symptom Score.

Secondary endpoints will be the proportion of patients with complications due to gallstones or cholecystectomy, the association between the patients’ symptoms and treatment and work performance, and ultimately, cost-effectiveness.

Discussion

The SECURE trial is the first randomized controlled trial examining the effectiveness of usual care versus restrictive care in patients with symptomatic gallstones. The outcome of this trial will inform clinicians whether a more restrictive strategy can minimize persistent pain in post-operative patients at least as good as usual care does, but at a lower cholecystectomy rate. (The Netherlands National Trial Register NTR4022, 17th December 2012)

Trial registration

The Netherlands National Trial Register NTR4022

http://www.zonmw.nl/nl/projecten/project-detail/scrutinizing-inefficient-use-of-cholecystectomy-a-randomized-trial-concerning-variation-in-practi/samenvatting/

Gastroschisis outcomes in North America: a comparison of Canada and the United States

BACKGROUND

Care of infants with gastroschisis is centralized in Canada and noncentralized in the United States. We conducted an outcomes comparison between the two countries and analyzed the determinants of such outcomes.

METHODS

Inpatient mortality and hospital stay of gastroschisis patients from the Canadian Pediatric Surgery Network prospective clinical database for the period 2005-2013 were compared with those from the US Kids Inpatient Database for the period 2003-2012. Potential outcome determinants were analyzed using univariate and multivariate analyses.

RESULTS

A comparison was made between 695 Canadian patients and 5216 American patients. Complex gastroschisis was found in 16.0% and 13.7% of patients in Canada and the US, respectively; P=0.11. Canada had less premature births, more normal birth weight (BW) infants, less cesarean section deliveries, and more inborn patients compared to the US. For simple gastroschisis, Canadian mortality was lower (1.4% vs. 3.4%; P=.008) and hospital stay was longer (45±38 vs. 41±32days; P=.04). US mortality correlated strongly with low BW (P=.002) and marginally with cesarean section delivery (P=.08). A longer Canadian hospital stay was associated with lower gestational age (P=0.01) and western region (P=0.04), while a longer American hospital stay was associated with medium neonatal intensive care unit gastroschisis volume (P=.03), low socioeconomic status (P=.06), low BW (P=0.06), and public insurance (P=0.07). Outcomes for complex gastroschisis did not differ between Canada and the US.

CONCLUSIONS

Mortality for simple gastroschisis is higher in the US than in Canada, whereas no outcome differences exist for complex gastroschisis. Outcome determinants are different between the 2 countries.

Perceptions of health professionals on subcutaneous hydration in palliative care: A qualitative study

BACKGROUND

Evidence indicates that hypodermoclysis is as safe and effective as intravenous rehydration in the treatment of the symptomatology produced by mild to moderate dehydration in patients for whom oral route administration is not possible. However, the knowledge about the use of the subcutaneous hydration and its correlates is still limited.

AIM

To explore the perceptions, attitudes and opinions of health professionals in palliative care on the administration of subcutaneous hydration.

DESIGN

This is a qualitative focus group study with health professionals of palliative care. Four focus groups were carried out until data saturation. A qualitative content analysis was performed.

SETTING/PARTICIPANTS

A total of 37 participants, physicians and nurses, were recruited from different services of palliative care in Spain.

RESULTS

In all, 856 meaning units were identified, from which 56 categories were extracted and grouped into 22 sub-themes, which were distributed among four themes: 'factors which influence the hydration decision', 'factors related to the choice of the subcutaneous route for hydration', 'the subcutaneous hydration procedure' and 'performance guidelines and/or protocols'.

CONCLUSIONS

Variables which most often influence the use of subcutaneous route to hydration are those that are linked to the characteristics of the patient, the team and the family, and other like the context and professionals' subjective perceptions about this medical practice.

Does a strategy to promote shared decision-making reduce medical practice variation in the choice of either single or double embryo transfer after in vitro fertilisation? A secondary analysis of a randomised controlled trial

OBJECTIVES

The hypothesis that shared decision-making (SDM) reduces medical practice variations is increasingly common, but no evidence is available. We aimed to elaborate further on this, and to perform a first exploratory analysis to examine this hypothesis. This analysis, based on a limited data set, examined how SDM is associated with variation in the choice of single embryo transfer (SET) or double embryo transfer (DET) after in vitro fertilisation (IVF). We examined variation between and within hospitals.

DESIGN

A secondary analysis of a randomised controlled trial.

SETTING

5 hospitals in the Netherlands.

PARTICIPANTS

222 couples (woman aged <40 years) on a waiting list for a first IVF cycle, who could choose between SET and DET (ie, ≥2 embryos available).

INTERVENTION

SDM via a multifaceted strategy aimed to empower couples in deciding how many embryos should be transferred. The strategy consisted of decision aid, support of IVF nurse and the offer of reimbursement for an extra treatment cycle. Control group received standard IVF care.

OUTCOME MEASURE

Difference in variation due to SDM in the choice of SET or DET, both between and within hospitals.

RESULTS

There was large variation in the choice of SET or DET between hospitals in the control group. Lower variation between hospitals was observed in the group with SDM. Within most hospitals, variation in the choice of SET or DET appeared to increase due to SDM. Variation particularly increased in hospitals where mainly DET was chosen in the control group.

CONCLUSIONS

Although based on a limited data set, our study gives a first insight that including patients' preferences through SDM results in less variation between hospitals, and indicates another pattern of variation within hospitals. Variation that results from patient preferences could be potentially named the informed patient rate. Our results provide the starting point for further research.

TRIAL REGISTRATION NUMBER

NCT00315029; Post-results.

[Variations in the diagnostic confirmation process between breast cancer mass screening units]

OBJECTIVE

To analyse variations in the diagnostic confirmation process between screening units, variations in the outcome of each episode and the relationship between the use of the different diagnostic confirmation tests and the lesion detection rate.

METHOD

Observational study of variability of the standardised use of diagnostic and lesion detection tests in 34 breast cancer mass screening units participating in early-detection programmes in three Spanish regions from 2002-2011.

RESULTS

The diagnostic test variation ratio in percentiles 25-75 ranged from 1.68 (further appointments) to 3.39 (fine-needle aspiration). The variation ratio in detection rates of benign lesions, ductal carcinoma in situ and invasive cancer were 2.79, 1.99 and 1.36, respectively. A positive relationship between rates of testing and detection rates was found with fine-needle aspiration-benign lesions (R(2): 0.53), fine-needle aspiration-invasive carcinoma (R(2): 0 28), core biopsy-benign lesions (R(2): 0.64), core biopsy-ductal carcinoma in situ (R(2): 0.61) and core biopsy-invasive carcinoma (R(2): 0.48).

CONCLUSIONS

Variation in the use of invasive tests between the breast cancer screening units participating in early-detection programmes was found to be significantly higher than variations in lesion detection. Units which conducted more fine-needle aspiration tests had higher benign lesion detection rates, while units that conducted more core biopsies detected more benign lesions and cancer.

Rates of admission for ambulatory care sensitive conditions in France in 2009-2010: trends, geographic variation, costs, and an international comparison

BACKGROUND

Admissions for ambulatory care sensitive conditions (ACSCs) are considered preventable and indicators of poor access to primary care. We wondered whether per-capita rates of admission for ACSCs in France demonstrated geographic variation, were changing, were related to other independent variables, or were comparable to those in other countries; further, we wanted to quantify the resources such admissions consume.

METHODS

We calculated per-capita rates of admission for five categories (chronic, acute, vaccination preventable, alcohol-related, and other) of ACSCs in 94 departments in mainland France in 2009 and 2010, examined measures and causes of geographic variation in those rates, computed the costs of those admissions, and compared rates of admission for ACSCs in France to those in several other countries.

RESULTS

The highest ACSC admission rates generally occurred in the young and the old, but rates varied across French regions. Over the 2-year period, rates of most categories of ACSCs increased; higher ACSC admission rates were associated with lower incomes and a higher supply of hospital beds. We found that the local supply of general practitioners was inversely associated with rates of chronic and total ACSC admission rates, but that this relationship disappeared if we accounted for patients' use of general practitioners in neighboring departments. ACSC admissions cost 4.755 billion euros in 2009 and 5.066 billion euros in 2010; they consumed 7.86 and 8.74 million bed days of care, respectively. France had higher rates of ACSC admissions than most other countries examined.

CONCLUSIONS

Because admissions for ACSCs are generally considered a failure of outpatient care, cost French taxpayers substantial monetary and hospital resources, and appear to occur more frequently in France than in other countries, policymakers should prioritize targeted efforts to reduce them.

Examining regional variation in health care spending in British Columbia, Canada

Examining regional variation in health care spending may reveal opportunities for improved efficiency. Previous research has found that health care spending and service use vary substantially from place to place, and this is often not explained by differences in the health status of populations or by better outcomes in higher-spending regions, but rather by differences in intensity of service provision. Much of this research comes from the United States. Whether similar patterns are observed in other high-income countries is not clear. We use administrative data on health care use, covering the entire population of the Canadian province of British Columbia, to examine how and why health care spending varies among health regions. Pricing and insurance coverage are constant across the population, and we adjust for patient-level age, sex, and recorded diagnoses. Without adjusting for differences in population characteristics, per-capita spending is 50% higher in the highest-spending region than in the lowest. Adjusting for population characteristics as well as the very different environments for health service delivery that exist among metropolitan, non-metropolitan, and remote regions of the province, this falls to 20%. Despite modest variation in total spending, there are marked differences in mortality. In this context, it appears that policy reforms aimed at system-wide quality and efficiency improvement, rather than targeted at high-spending regions, will likely prove most promising.

Overutilization of ambulatory medical care in the elderly German population?--An empirical study based on national insurance claims data and a review of foreign studies

BACKGROUND

By definition, high utilizers receive a large proportion of medical services and produce relatively high costs. The authors report the results of a study on the utilization of ambulatory medical care by the elderly population in Germany in comparison to other OECD countries. Evidence points to an excessive utilization in Germany. It is important to document these utilization figures and compare them to those in other countries since the healthcare system in Germany stopped recording ambulatory healthcare utilization figures in 2008.

METHODS

The study is based on the claims data of all insurants aged ≥ 65 of a statutory health insurance company in Germany (n = 123,224). Utilization was analyzed by the number of contacts with physicians in ambulatory medical care and by the number of different practices contacted over one year. Criteria for frequent attendance were ≥ 50 contacts with practices or contacts with ≥ 10 different practices or ≥ 3 practices of the same discipline per year. Descriptive statistical analysis and logistic regression were applied. Morbidity was analyzed by prevalence and relative risk for frequent attendance for 46 chronic diseases.

RESULTS

Nineteen percent of the elderly were identified as high utilizers, corresponding to approximately 3.5 million elderly people in Germany. Two main types were identified. One type has many contacts with practices, belongs to the oldest age group, suffers from severe somatic diseases and multimorbidity, and/or is dependent on long-term care. The other type contacts large numbers of practices, consists of younger elderly who often suffer from psychiatric and/or psychosomatic complaints, and is less frequently multimorbid and/or nursing care dependent.

CONCLUSION

We found a very high rate of frequent attendance among the German elderly, which is unique among the OECD countries. Further research should clarify its reasons and if this degree of utilization is beneficial for elderly people.

The Value of Imaging Part II: Value beyond Image Interpretation

Although image interpretation is an essential part of radiologists' value, there are other ways in which we contribute to patient care. Part II of the value of imaging series reviews current initiatives that demonstrate value beyond the image interpretation. Standardizing processes, reducing the radiation dose of our examinations, clarifying written reports, improving communications with patients and providers, and promoting appropriate imaging through decision support are all ways we can provide safer, more consistent, and higher quality care. As payers and policy makers push to drive value, research that demonstrates the value of these endeavors, or lack thereof, will become increasingly sought after and supported.

Does evidence-based practice improve patient outcomes? An analysis of a natural experiment in a Spanish hospital

RATIONALE, AIMS AND OBJECTIVES

Evidence-based practice (EBP) is widely promoted, but does EBP produce better patient outcomes? We report a natural experiment when part of the internal medicine service in a hospital was reorganized in 2003 to form an EBP unit, the rest of the service remaining unchanged. The units attended similar patients until 2012 permitting comparisons of outcomes and activity.

METHODS

We used routinely collected statistics (2004-11) to compare the two different methods of practice and test whether patients being seen by the EBP unit differed from standard practice (SP) patients. Data were available by doctor and year. To check for differences between the EBP and SP doctors prior to reorganization, we used statistics from 2000 to 2003. We looked for changes in patient outcomes or activity following reorganization and whether the EBP unit was achieving significantly different results from SP. Data across the periods were combined and tested using Mann-Whitney test.

RESULTS

No statistically significant differences in outcomes were detected between the EBP and the SP doctors prior to reorganization. Following the unit's establishment, the mortality of patients being treated by EBP doctors compared with their previous performance dropped from 7.4% to 6.3% (P < 0.02) and length of stay from 9.15 to 6.01 days (P = 0.002). No statistically significant improvements were seen in SP physicians' performance. No differences in the proportion of patients admitted or their complexity between the services were detected. Despite this, EBP patients had a clinically significantly lower risk of death 6.27% versus 7.75% (P < 0.001) and a shorter length of stay 6.01 versus 8.46 days (P < 0.001) than SP patients. Readmission rates were similar: 14.4% (EBP); 14.5% (SP). EBP doctors attended twice as many patients/doctor as SP doctors.

CONCLUSION

The EBP unit was associated with better patient outcomes and more efficient performance than achieved by the same physicians previously or by SP concurrently.

A Window on Geographic Variation in Health Care: Insights from EuroHOPE

The aim of EuroHOPE was to provide new evidence on the performance of healthcare systems, using a disease-based approach, linkable patient-level data and internationally standardized methods. This paper summarizes its main results. In the seven EuroHOPE countries, the Acute Myocardial Infarction (AMI), stroke and hip fracture patient populations were similar with regard to age, sex and comorbidity. However, non-negligible geographic variation in mortality and resource use was found to exist. Survival rates varied to similar extents between countries and regions for AMI, stroke, hip fracture and very low birth weight. Geographic variation in length of stay differed according to type of disease. Regression analyses showed that only a small part of geographic variation could be explained by demand and supply side factors. Furthermore, the impact of these factors varied between countries. The findings show that there is room for improvement in performance at all levels of analysis and call for more in-depth disease-based research. In using international patient-level data and a standardized methodology, the EuroHOPE approach provides a promising stepping-stone for future investigations in this field. Still, more detailed patient and provider information, including outside of hospital care, and better data sharing arrangements are needed to reach a more comprehensive understanding of geographic variations in health care.

Provider variation in responses to warnings: do the same providers run stop signs repeatedly?

OBJECTIVE

Variation in the use of tests and treatments has been demonstrated to be substantial between providers and geographic regions. This study assessed variation between outpatient providers in overriding electronic prescribing warnings.

METHODS

Responses to warnings were prospectively logged. Random effects models were used to calculate provider-to-provider variation in the rates for the decisions to override warnings in 6 different clinical domains: medication allergies, drug-drug interactions, duplicate drugs, renal recommendations, age-based recommendations, and formulary substitutions.

RESULTS

A total of 157 482 responses were logged. Differences between 1717 providers accounted for 11% of the overall variability in override rates, so that while the average override rate was 45.2%, individual provider rates had a wide range with a 95% confidence interval (CI) (13.7%-76.7% ). The highest variations between providers were observed in the categories age-based (25.4% of total variability; average override rate 70.2% [95% CI, 29.1%-100% ]) and renal recommendations (24.2%; average 70% [95% CI, 29.5%-100% ]), and provider responses within these 2 categories were most often clinically inappropriate according to prior work. Among providers who received at least 10 age-based recommendations, 64 of 238 (27%) overrode ≥ 90% of the warnings and 13 of 238 (5%) overrode all of them. Of those who received at least 10 renal recommendations, 36 of 92 (39%) overrode ≥ 90% of the alerts and 9 of 92 (10%) overrode all of them.

CONCLUSIONS

The decision to override prescribing warnings shows variation between providers, and the magnitude of variation differs among the clinical domains of the warnings; more variation was observed in areas with more inappropriate overrides.

Measuring prevalence, reliability and variation in high-risk prescribing in general practice using multilevel modelling of observational data in a population database

Background

High-risk primary care prescribing is common and is known to vary considerably between practices, but the extent to which high-risk prescribing varies among individual general practitioners (GPs) is not known.

Objectives

To create prescribing safety indicators usable in existing electronic clinical data and to examine (1) variation in high-risk prescribing between patients, GPs and practices including reliability of measurement and (2) changes over time in high-risk prescribing prevalence and variation between practices.

Design

Descriptive analysis and multilevel logistic regression modelling of routine data.

Setting

UK general practice using routine electronic medical record data.

Participants

(1) For analysis of variation and reliability, 398 GPs and 26,539 patients in 38 Scottish practices. (2) For analysis of change in high-risk prescribing, ≈ 300,000 patients particularly vulnerable to adverse drug effects registered with 190 Scottish practices.

Main outcome measures

For the analysis of variation between practices and between GPs, five indicators of high-risk non-steroidal anti-inflammatory drug (NSAID) prescribing. For the analysis of change in high-risk prescribing, 19 previously validated indicators.

Results

Measurement of high-risk prescribing at GP level was feasible only for newly initiated drugs and for drugs similar to NSAIDs which are usually initiated by GPs. There was moderate variation between practices in total high-risk NSAID prescribing [intraclass correlation coefficient (ICC) 0.034], but this indicator was highly reliable (> 0.8 for all practices) at distinguishing between practices because of the large number of patients being measured. There was moderate variation in initiation of high-risk NSAID prescribing between practices (ICC 0.055) and larger variation between GPs (ICC 0.166), but measurement did not reliably distinguish between practices and had reliability > 0.7 for only half of the GPs in the study. Between quarter (Q)2 2004 and Q1 2009, the percentage of patients exposed to high-risk prescribing measured by 17 indicators that could be examined over the whole period fell from 8.5% to 5.2%, which was largely driven by reductions in high-risk NSAID and antiplatelet use. Variation between practices increased for five indicators and decreased for five, with no relationship between change in the rate of high-risk prescribing and change in variation between practices.

Conclusions

High-risk prescribing is common and varies moderately between practices. High-risk prescribing at GP level cannot be easily measured routinely because of the difficulties in accurately identifying which GP actually prescribed the drug and because drug initiation is often a shared responsibility with specialists. For NSAID initiation, there was approximately three times greater variation between GPs than between practices. Most GPs with above average high-risk prescribing worked in practices which were not themselves above average. The observed reductions in high-risk prescribing between 2004 and 2009 were largely driven by falls in NSAID and antiplatelet prescribing, and there was no relationship between change in rate and change in variation between practices. These results are consistent with improvement interventions in all practices being more appropriate than interventions targeted on practices or GPs with higher than average high-risk prescribing. There is a need for research to understand why high-risk prescribing varies and to design and evaluate interventions to reduce it.

Funding

Funding for this study was provided by the Health Services and Delivery Research programme of the National Institute for Health Research.

Considerations in the evaluation and determination of minimal risk in pragmatic clinical trials

Institutional review boards, which are charged with overseeing research, must classify the riskiness of proposed research according to a federal regulation known as the Common Rule (45 CFR 46, Subpart A) and by regulations governing the US Food and Drug Administration codified in 21 CFR 50. If an institutional review board determines that a clinical trial constitutes "minimal risk," there are important practical implications: the institutional review board may then allow a waiver or alteration of the informed consent process; the study may be carried out in certain vulnerable populations; or the study may be reviewed by institutional review boards using an expedited process. However, it is unclear how institutional review boards should assess the risk levels of pragmatic clinical trials. Such trials typically compare existing, widely used medical therapies or interventions in the setting of routine clinical practice. Some of the therapies may be considered risky of themselves but the study comparing them may or may not add to that pre-existing level of risk. In this article, we examine the common interpretations of research regulations regarding minimal-risk classifications and suggest that they are marked by a high degree of variability and confusion, which in turn may ultimately harm patients by delaying or hindering potentially beneficial research. We advocate for a clear differentiation between the risks associated with a given therapy and the incremental risk incurred during research evaluating those therapies as a basic principle for evaluating the risk of a pragmatic clinical trial. We then examine two pragmatic clinical trials and consider how various factors including clinical equipoise, practice variation, research methods such as cluster randomization, and patients' perspectives may contribute to current and evolving concepts of minimal-risk determinations, and how this understanding in turn affects the design and conduct of pragmatic clinical trials.

Does screening for physical and psychosocial symptoms vary between medical oncology treatment centres?

OBJECTIVE

Our aim is to examine whether provider screening for physical and emotional symptoms, as reported by medical oncology outpatients, varies across medical oncology treatment centres.

METHODS

A cross-sectional sample of 716 patients attending the outpatient medical oncology department of six public cancer treatment centres across five Australian states participated. Four patient-report survey items explored how often patients were specifically asked by clinical staff at the treatment centre about their (i) emotional distress (anxiety, distress and depression), (ii) pain, (iii) fatigue and (iv) other physical symptoms (e.g. nausea and constipation). Asking at less than half of all appointments was classified as infrequent screening.

RESULTS

No significant associations were found between treatment centre and symptom screening for emotional distress (p = 0.65), pain (p = 0.21), fatigue (p = 0.95) and other physical symptoms (p = 0.40). The proportion of patients who were regularly screened versus infrequently screened was significantly higher for physical symptoms than emotional symptoms (p < 0.001): 36% infrequently screened for emotional distress (range: 33-45%), 15% infrequently screened for pain (range: 9-21%), 16% infrequently screened for fatigue (range: 15-19%) and 11% infrequently screened for other physical symptoms (range: 5-17%).

CONCLUSIONS

No significant variation in symptom screening was found across treatment centres. While the majority of patients received recommended care, treatment centres must continue to improve symptom screening rates, particularly for emotional distress. However, screening is only the first step and must be accompanied by the offer of help and provision of help to relieve patient suffering.

The Relationship Between the Scope of Essential Health Benefits and Statutory Financing: An International Comparison Across Eight European Countries

BACKGROUND

Both rising healthcare costs and the global financial crisis have fueled a search for policy tools in order to avoid unsustainable future financing of essential health benefits. The scope of essential health benefits (the range of services covered) and depth of coverage (the proportion of costs of the covered benefits that is covered publicly) are corresponding variables in determining the benefits package. We hypothesized that a more comprehensive health benefit package may increase user cost-sharing charges.

METHODS

We conducted a desktop research study to assess the interrelationship between the scope of covered health benefits and the height of statutory spending in a sample of 8 European countries: Belgium, England, France, Germany, the Netherlands, Scotland, Sweden, and Switzerland. We conducted a targeted literature search to identify characteristics of the healthcare systems in our sample of countries. We analyzed similarities and differences based on the dimensions of publicly financed healthcare as published by the European Observatory on Health Care Systems.

RESULTS

We found that the scope of services is comparable and comprehensive across our sample, with only marginal differences. Cost-sharing arrangements show the most variation. In general, we found no direct interrelationship in this sample between the ranges of services covered in the health benefits package and the height of public spending on healthcare. With regard to specific services (dental care, physical therapy), we found indications of an association between coverage of services and cost-sharing arrangements. Strong variations in the volume and price of healthcare services between the 8 countries were found for services with large practice variations.

CONCLUSION

Although reducing the scope of the benefit package as well as increasing user charges may contribute to the financial sustainability of healthcare, variations in the volume and price of care seem to have a much larger impact on financial sustainability. Policy-makers should focus on a variety of measures within an integrated approach. There is no silver bullet for addressing the sustainability of healthcare.

Variation in hospital rates of induction of labour: a population-based record linkage study

OBJECTIVES

To examine interhospital variation in rates of induction of labour (IOL) to identify potential targets to reduce high rates of practice variation.

DESIGN

Population-based record linkage cohort study.

SETTING

New South Wales, Australia, 2010-2011.

PARTICIPANTS

All women with live births of ≥24 weeks gestation in 72 hospitals.

PRIMARY OUTCOME MEASURE

Variation in hospital IOL rates adjusted for differences in case-mix, according to 10 mutually exclusive groups derived from the Robson caesarean section classification; groups were categorised by parity, plurality, fetal presentation, prior caesarean section and gestational age.

RESULTS

The overall IOL rate was 26.7% (46,922 of 175,444 maternities were induced), ranging from 9.7% to 41.2% (IQR 21.8-29.8%) between hospitals. Nulliparous and multiparous women at 39-40 weeks gestation with a singleton cephalic birth were the greatest contributors to the overall IOL rate (23.5% and 20.2% of all IOL respectively), and had persisting high unexplained variation after adjustment for case-mix (adjusted hospital IOL rates ranging from 11.8% to 44.9% and 7.1% to 40.5%, respectively). In contrast, there was little variation in interhospital IOL rates among multiparous women with a singleton cephalic birth at ≥41 weeks gestation, women with singleton non-cephalic pregnancies and women with multifetal pregnancies.

CONCLUSIONS

7 of the 10 groups showed high or moderate unexplained variation in interhospital IOL rates, most pronounced for women at 39-40 weeks gestation with a singleton cephalic birth. Outcomes associated with divergent practice require determination, which may guide strategies to reduce practice variation.

Variation in hospital caesarean section rates for preterm births

BACKGROUND

Evidence about optimal mode of delivery for preterm birth is lacking, and there is thought to be considerable variation in practice.

OBJECTIVE

To assess whether variation in hospital preterm caesarean section rates (Robson Classification Group 10) and outcomes are explained by casemix, labour or hospital characteristics.

MATERIALS AND METHODS

Population-based cohort study in NSW, 2007-2011. Births were categorised according to degree of prematurity and hospital service capability: 26-31, 32-33 and 34-36 weeks' gestation. Hospital preterm caesarean rates were investigated using multilevel logistic regression models, progressively adjusting for casemix, labour and hospital factors. The association between hospital caesarean rates, and severe maternal and neonatal morbidity rates was assessed.

RESULTS

At 26-31 weeks' gestation, the caesarean rate was 55.2% (seven hospitals, range 43.4-58.4%); 50.9% at 32-33 weeks (12 hospitals, 43.4-58.1%); and 36.4% at 34-36 weeks (51 hospitals, 17.4-48.3%). At 26-31 weeks and 32-33 weeks' gestation, 81% and 59% of the variation between hospitals was explained with no hospital significantly different from the state average after adjustment. At 34-36 weeks' gestation, although 59% of the variation was explained, substantial unexplained variation persisted. Hospital caesarean rates were not associated with severe maternal morbidity rates at any gestational age. At 26-31 weeks' gestation, medium and high caesarean rates were associated with higher severe neonatal morbidity rates, but there was no evidence of this association ≥32 weeks.

CONCLUSION

Both casemix and practice differences contributed to the variation in hospital caesarean rates. Low preterm caesarean rates were not associated with worse outcomes.

Limited advances in therapy of glioblastoma trigger re-consideration of research policy

Glioblastoma (GB - WHO grade IV) is the most frequent and lethal primary brain tumour with median overall survival of 7-15 months after diagnosis. As in other cancer research areas, an overwhelming amount of pre-clinical research acquisitions in the GB field have not been translated to patients' benefit, potentially due to inappropriate treatment schedules and/or trial designs in the clinical setting. The recent failure of promising anti-VEGF bevacizumab to improve GB patients' overall survival recapitulates this sense of frustration. The following measures are proposed.

Making governance work in the health care sector: evidence from a 'natural experiment' in Italy

The Italian Health care System provides universal coverage for comprehensive health services and is mainly financed through general taxation. Since the early 1990s, a strong decentralization policy has been adopted in Italy and the state has gradually ceded its jurisdiction to regional governments, of which there are twenty. These regions now have political, administrative, fiscal and organizational responsibility for the provision of health care. This paper examines the different governance models that the regions have adopted and investigates the performance evaluation systems (PESs) associated with them, focusing on the experience of a network of ten regional governments that share the same PES. The article draws on the wide range of governance models and PESs in order to design a natural experiment. Through an analysis of 14 indicators measured in 2007 and in 2012 for all the regions, the study examines how different performance evaluation models are associated with different health care performances and whether the network-shared PES has made any difference to the results achieved by the regions involved. The initial results support the idea that systematic benchmarking and public disclosure of data are powerful tools to guarantee the balanced and sustained improvement of the health care systems, but only if they are integrated with the regional governance mechanisms.

Care provided and care setting transitions in the last three months of life of cancer patients: a nationwide monitoring study in four European countries

BACKGROUND

This is an international study across four European countries (Belgium[BE], the Netherlands[NL], Italy[IT] and Spain[ES]) between 2009 and 2011, describing and comparing care and care setting transitions provided in the last three months of life of cancer patients, using representative GP networks.

METHODS

General practitioners (GPs) of representative networks in each country reported weekly all non-sudden cancer deaths (+18y) within their practice. GPs reported medical end-of-life care, communication and circumstances of dying on a standardised questionnaire. Multivariate logistic regressions (BE as a reference category) were conducted to compare countries.

RESULTS

Of 2,037 identified patients from four countries, four out of five lived at home or with family in their last year of life. Over 50% of patients had at least one transition in care settings in the last three months of life; one third of patients in BE, IT and ES had a last week hospital admission and died there. In the last week of life, a treatment goal was adopted for 80-95% of those having palliation/comfort as their treatment goal. Cross-country differences in end-of-life care provision included GPs in NL being more involved in palliative care (67%) than in other countries (35%-49%) (OR 1.9) and end-of-life topics less often discussed in IT or ES. Preference for place of death was less often expressed in IT and ES (32-34%) than in BE and NL (49-74%). Of all patients, 88-98% were estimated to have distress from at least one physical symptom in the final week of life.

CONCLUSION

Although palliative care was the main treatment goal for most cancer patients at the end of life in all four countries, frequent late hospital admissions and the symptom burden experienced in the last week of life indicates that further integration of palliative care into oncology care is required in many countries.

Regional variations in in-hospital mortality, care processes, and spending in acute ischemic stroke patients in Japan

BACKGROUND

Little is known about the regional variations in ischemic stroke care in Japan. This study investigates the regional variations and associations among outcomes, care processes, spending, and physician workforce availability in acute ischemic stroke care.

METHODS

Using administrative claims data from National Claims Database, we identified National Health Insurance beneficiaries aged 65 years and older and Long Life Medical Care System beneficiaries from 9 prefectures who had been hospitalized for acute ischemic stroke between April 2010 and March 2012. Patients were grouped according to their subprefectural regions of residence known as secondary medical areas (SMAs). Performances in 8 outcome and process of care measures were analyzed in each SMA. Multilevel regression models with 2 levels (patient and regional) were used to analyze age- and sex-adjusted in-hospital mortality, hospitalization spending, and tissue plasminogen activator (tPA) utilization rate. The associations between regional supply of physicians for stroke care and the various quality measures were investigated.

RESULTS

We analyzed 49,440 acute ischemic stroke patients. The regional variations among SMAs in in-hospital mortality, spending, and tPA utilization were 3.2-, 1.7-, and 5.9-fold, respectively. Higher physician supply was significantly associated with lower in-hospital mortality and higher spending. Additionally, spending had a significantly negative correlation with regional continuity of care planning rate but a significantly positive correlation with rehabilitation rate.

CONCLUSIONS

The study revealed substantial regional variations in Japanese ischemic stroke care. Improving the allocative efficiency of physicians and establishing continuity of care networks may be useful in mitigating regional disparities and reconstructing the stroke care system.

Geographic variation in admissions for knee replacement, hip replacement, and hip fracture in France: evidence of supplier-induced demand in for-profit and not-for-profit hospitals

INTRODUCTION

We sought to determine whether there was evidence of supplier-induced demand in mainland France, where health care is mainly financed by a public and compulsory health insurance and provided by both for-profit and not-for-profit hospitals.

METHODS

Using a dataset of all admissions to French hospitals for 2009 and 2010, we calculated department-level age-adjusted and sex-adjusted per capita admission rates for hip replacement, knee replacement, and hip fracture for 2 age groups (45-64 and 65-99 y old), for-profit and not-for-profit hospitals. We used spatial regression analysis to examine the relationship between ecological variables, procedure rates, and supply of surgeons or sector-specific surgical beds.

RESULTS

The large majority of hip and knee replacement surgeries were performed in for-profit hospitals, whereas the large majority of hip fracture admissions were in not-for-profit hospitals; nonetheless, we found approximately 2-fold variation in per capita rates of hip and knee replacement surgery in both age groups and settings. Spatial regression results showed that among younger patients, higher incomes were associated with lower admission rates; among older patients, higher levels of reliance on social benefits were associated with lower rates of elective surgery in for-profit hospitals. Although overall surgical bed supply was not associated with admission rates, for-profit-specific and not-for-profit-specific bed supply were associated with higher rates of elective procedures within a respective hospital type.

DISCUSSION

We found evidence of supplier-induced demand within the French for-profit and not-for-profit hospital systems; however, these systems appear to complement one another so that there is no overall national supplier-induced effect.

Maternal clinical diagnoses and hospital variation in the risk of cesarean delivery: analyses of a National US Hospital Discharge Database

BACKGROUND

Cesarean delivery is the most common inpatient surgery in the United States, where 1.3 million cesarean sections occur annually, and rates vary widely by hospital. Identifying sources of variation in cesarean use is crucial to improving the consistency and quality of obstetric care. We used hospital discharge records to examine the extent to which variability in the likelihood of cesarean section across US hospitals was attributable to individual women's clinical diagnoses.

METHODS AND FINDINGS

Using data from the 2009 and 2010 Nationwide Inpatient Sample from the Healthcare Cost and Utilization Project--a 20% sample of US hospitals--we analyzed data for 1,475,457 births in 1,373 hospitals. We fitted multilevel logistic regression models (patients nested in hospitals). The outcome was cesarean (versus vaginal) delivery. Covariates included diagnosis of diabetes in pregnancy, hypertension in pregnancy, hemorrhage during pregnancy or placental complications, fetal distress, and fetal disproportion or obstructed labor; maternal age, race/ethnicity, and insurance status; and hospital size and location/teaching status. The cesarean section prevalence was 22.0% (95% confidence interval 22.0% to 22.1%) among women with no prior cesareans. In unadjusted models, the between-hospital variation in the individual risk of primary cesarean section was 0.14 (95% credible interval 0.12 to 0.15). The difference in the probability of having a cesarean delivery between hospitals was 25 percentage points. Hospital variability did not decrease after adjusting for patient diagnoses, socio-demographics, and hospital characteristics (0.16 [95% credible interval 0.14 to 0.18]). A limitation is that these data, while nationally representative, did not contain information on parity or gestational age.

CONCLUSIONS

Variability across hospitals in the individual risk of cesarean section is not decreased by accounting for differences in maternal diagnoses. These findings highlight the need for more comprehensive or linked data including parity and gestational age as well as examination of other factors-such as hospital policies, practices, and culture--in determining cesarean section use. Please see later in the article for the Editors' Summary.

Using an epidemiological model to investigate unwarranted variation: the case of ventilation tubes for otitis media with effusion in England

OBJECTIVES

To investigate unwarranted variation in ventilation tube insertions for otitis media with effusion in children in England. This procedure is known to be 'overused' from clinical audits, as only one in three ventilation tube insertions conforms to the appropriateness criteria of the National Institute for Health and Care Excellence (NICE); but audits cannot identify the scale of 'underuse' - i.e. patients who would benefit but are not treated.

METHODS

To explore both 'underuse' and 'overuse' of ventilation tubes for otitis media with effusion, we developed an epidemiological model based on: definitions of children with otitis media with effusion expected to benefit from ventilation tubes according to NICE guidance; epidemiological and clinical information from a systematic review; and expert judgement. A range of estimates was derived using Monte Carlo simulation and compared with the number of ventilation tubes provided in the English National Health Service in 2010.

RESULTS

About 32,200 children in England would be expected to benefit from ventilation tubes for otitis media with effusion per year (between 20,411 and 45,231 with 90% certainty). The observed number of ventilation tubes for otitis media with effusion-associated diagnoses was 16,824.

CONCLUSIONS

The expected population capacity to benefit from ventilation tubes for otitis media with effusion based on NICE guidance appeared to exceed, by far, the number of ventilation tubes provided in the English National Health Service. So, while there is known 'overuse', there also may be substantial 'underuse' of ventilation tubes for otitis media with effusion if NICE criteria were applied. Future investigations of unwarranted variation should, therefore, not only focus on the patients who are treated but also consider the potential for benefit at the population level.