Calculation of Overall Hospital Quality Star Ratings With and Without Inclusion of the Peer Grouping Step

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Examines potential implications of including a peer grouping step in the calculation of Centers for Medicare & Medicaid Services (CMS) Overall Star Ratings. Uses January 2023 Medicare Care Compare data on 3,076 hospitals that received a star rating to calculate the peer groups based on the number of quality measure groups for which hospitals had 3 or more reported measures. Presents data on the characteristics of each peer group, the distribution of star ratings whether the peer grouping step was used or not used, and the number of hospitals with a higher, lower, or identical star rating when the peer grouping step was applied. Compares data by hospital characteristics, including safety net status, Critical Access Hospital status, rural or urban location, and more.

Cameron J. Gettel, Kyle Bagshaw, Li Qin, et al.

JAMA Network Open, 7(5), e2411933

05/2024

Critical Access Hospitals · Healthcare quality · Hospitals · Medicare · Rural-urban differences · Statistics and data