Table 6.

Differences in AUCs of the comorbidity indices alone and the model with seven common comorbidities

Score	90-day mortality		1-year mortality
	AUC (95% CI)	p value	AUC (95% CI)	p value
Comorbidities with ASA	0.022 (-0.027 to 0.071)	0.38	0.024 (-0.013 to 0.061)	0.21
Comorbidities with CCI	-0.016 (-0.07 to 0.038)	0.55	-0.061 (-0.099 to -0.022)	0.002
Comorbidities with ECI	-0.031 (-0.068 to 0.006)	0.10	-0.047 (-0.075 to -0.018)	0.002

AUC = area under the curve; ASA = American Society of Anesthesiologists; ECI = Elixhauser comorbidity index; CCI = Charlson comorbidity index.