Interinstitutional Comparison of Risk-Adjusted Mortality and Length of Stay in Congenital Heart Surgery

The CCS tends to have more predictive power than RACHS and BCS for mortality. The LOS is moderately correlated with CCS, RACHS, and age together, but the model is a poor predictor of individual LOS. The LOS for RACHS category 6 cases differed between the institutions. This study suggests methods that can be used to compare institutions in a risk-adjusted manner.