What question did this study set out to answer?

To evaluate the impact of all-condition versus summed-condition risk adjustment methods on hospital quality assessment.

April 18, 2026Open Access

Hospital‐Wide Quality Assessment Using All‐Condition Versus Summed‐Condition Risk Adjustment

Key Points

To evaluate the impact of all-condition versus summed-condition risk adjustment methods on hospital quality assessment.
Analyzed risk-standardized mortality rates (RSMR) using all- and summed-condition methods.
Investigated associations between hospital characteristics and comparative RSMR results.
Evaluated the impact of different risk adjustment indices (RSI vs. HCC) on RSMR in large hospitals.
All- and summed-condition RSMRs demonstrated high correlation.
Certain hospital characteristics influenced the comparative results of RSMR.
In large hospitals, a choice between RSI and HCC had a greater effect on RSMR than the method of risk adjustment.

Abstract

All- and summed-condition RSMRs using RSI were highly correlated. Some hospital characteristics were associated with comparative RSMR results between all- versus summed-condition. For large hospitals, the choice of RSI versus HCC impacts RSMR more than the choice of all- versus summed-condition method.

Hospital‐Wide Quality Assessment Using All‐Condition Versus Summed‐Condition Risk Adjustment

Key Points

Abstract

Cite This Study