LAUSR

A small proportion of high-need (HN) Medicare beneficiaries account for a large share of medical expenditures in the United States. Identifying hospitals with the best outcomes for HN patients is central to identifying and spreading evidence-based practices to improve care for this population. The objective of this study was to identify and characterize top-performing hospitals for HN patients. Administrative claims data from 2013-2014 were used to identify HN beneficiaries and their treating hospital; hospitals were ranked based on their HN beneficiaries' outcomes in 2015. Hospitalization, mortality, and days spent in community were assessed, and all outcomes were risk standardized for age, sex, dual eligibility, and hospital referral region. American Hospital Association and aggregated inpatient claims data characterized hospitals. Logistic regression models estimated the odds of ranking in the top 20% on all outcomes. Of 2253 hospitals with at least 500 HN patients in the United States, 92 (4.1%) ranked in the top 20% across all outcomes. No hospital characteristics were associated with being top performing across all outcomes, but urban hospitals were significantly less likely to perform well on hospitalization and private, for-profit hospitals performed better on mortality. Small hospitals, Accountable Care Organization providers, and those providing palliative care services were more likely to rank highly on days spent in the community. Top-performing hospitals served fewer minority, dual eligible, and HN patients, suggesting that case mix may explain some of the differences in performance, and that additional work is needed to examine programs and practices at outstanding hospitals.