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Figure 8 Influence of RACHS-1 Category on Operative Mortality
These institution-specific mortality rates by Risk Adjustment for Congenital Heart Surgery (RACHS-1) category showed little diversity among the 3 lowest levels of risk. Institution mortality rates seemed to vary more at higher RACHS-1 categories as the complexity of the congenital disorder increased and the numbers of patients who underwent surgery at each institution decreased. Data analysis confirmed that this diversity was not statistically significant. Reprinted with permission from Welke et al. (13).
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