Considerations When Aggregating Data to Measure Performance Across Levels of the Health Care System.

BACKGROUND: Measuring quality at varying levels of the health care system requires attribution, a process of determining the patients and services for which each level is responsible. However, it is important to ensure that attribution approaches are equitable; otherwise, individuals may be assigned differentially based upon social determinants of health. METHODS: First, we used Medicaid claims (2010-2018) from Michigan to assess the proportion of children with sickle cell anemia who had less than 12 months enrollment within a single Medicaid health plan and could therefore not be attributed to a specific health plan. Second, we used the Medicaid Analytic eXtract data (2008-2009) from 26 states to simulate adapting the 30-Day Pediatric All-Condition Readmission measure to the Accountable Care Organization (ACO) level and examined the proportion of readmissions that could not be attributed. RESULTS: For the sickle cell measure, an average of 300 children with sickle cell anemia were enrolled in Michigan Medicaid each year. The proportion of children that could not be attributed to a Medicaid health plan ranged from 12.2% to 89.0% across years. For the readmissions measure, of the 1,051,365 index admissions, 22% were excluded in the ACO-level analysis because of being unable to attribute the patient to a health plan for the 30 days post discharge. CONCLUSIONS: When applying attribution models, it is essential to consider the potential to induce health disparities. Differential attribution may have unintentional consequences that deepen health disparities, particularly when considering incentive programs for health plans to improve the quality of care.

Association between Practice Participation in a Pediatric-focused Medical Home Learning Collaborative and Reduction of Preventable Emergency Department Visits by Publicly-insured Children in Massachusetts.

INTRODUCTION: This study evaluates the impact of practice participation in a pediatric patient-centered medical home learning collaborative on preventable emergency department (ED) visits among children in MassHealth (Massachusetts Medicaid/Children's Health Insurance Program). METHODS: Claims and enrollment data were extracted for child MassHealth members (aged 3-18) comprising 2 groups: members enrolled in a group of 13 child-serving practices that participated in an intensive, 29-month long patient-centered medical home learning collaborative (intervention group), and members enrolled in a group of 12 comparison practices with roughly similar panel size, type, and geographic location (comparison group). Preventable ED visits were identified using a modified version of the New York University ED algorithm. Two analyses were then conducted: (1) a repeat cross-sectional analysis among children enrolled in intervention or comparison group practices during baseline (first half of 2011) and follow-up (second half of 2013) periods; and (2) a longitudinal analysis among a subset of children enrolled for the full study period (2011-2013). Both analyses tested whether the effect of the intervention differed for children with versus without chronic conditions (effect modification). RESULTS: Preventable ED visits declined from baseline to follow-up among children in both intervention and comparison practices. In the cross-sectional analysis, the decrease was the same in both practice groups, and for children with versus without chronic conditions. The longitudinal analysis shows a statistically significantly greater decrease among children with chronic conditions enrolled in the intervention practices (P = 0.02). CONCLUSION: Children with chronic conditions might receive the greatest benefit from receiving care in a medical home setting.

Changes in service availability in california hospitals, 1995 to 2002.

Hospitals face serious financial challenges in the current healthcare marketplace. In response to these challenges, they may alter their service offerings, eliminating services that are perceived as money-losing or adding new services in areas where profitability is expected to be greater. Although research has examined hospital closures, the more subtle phenomenon of hospital service changes has not been systematically studied. This issue is important because different types of hospital service changes could have different effects on hospital financial viability: extensive service closures could contribute to a downward spiral leading to hospital closure, whereas adding new services might help improve a hospital's finances. This article' examines changes in hospital service availability in California general acute care hospitals between 1995 and 2002. Our major findings indicate that many California hospitals made changes in their service offerings during the study period, although few made extensive changes. Altogether, about half of the hospitals in our study population either closed or opened at least one service. Nearly one-fourth of the hospitals in our study population closed one or more services, whereas just under one-third opened one or more new services. However, the vast majority of the hospitals that closed or added a service made only one or two such changes. In addition, few hospitals both closed and opened services. The service closed most frequently was normal newborn labor and delivery (obstetrics), whereas inpatient rehabilitation was the most frequently opened service. Hospitals that made the most service changes tended to be small, rural, and financially troubled at the start of the study period. Among this group of hospitals, service closures were associated with continued financial deterioration, whereas new service openings were associated with improvements in key financial ratios.

The occupational transformation of the mental health system.

The mental health workforce has changed dramatically since the mid-1970s. Nonphysician providers, particularly psychologists and clinical social workers, have become a much larger share of the workforce. While the supply of psychiatrists has been relatively stable, there has been a dramatic increase in the supply of psychologists and social workers. Changes in clinical practice, combined with the continued expansion of managed care into mental health, will largely determine the future composition and supply of the mental health workforce.