Table 4.

Results of ROC Analyses

Complication/Outcome Category	AUC			p Values
	mFI	ASA	CCI	mFI vs. ASA	mFI vs. CCI	ASA vs. CCI
Postoperative complications
Pulmonary	0.69	0.69	0.69	0.191	0.656	0.110
Cardiovascular	0.65	0.65	0.65	0.342	0.260	0.793
Infectious	0.65	0.65	0.65	0.602	0.438	0.973
Neurologic	0.69	0.69	0.69	0.900	0.257	0.515
Gastrointestinal	0.65	0.64	0.64	0.659	0.320	0.779
Urinary	0.65	0.65	0.65	0.026	0.297	0.096
Surgical	0.64	0.64	0.64	0.499	0.002	0.012
Inhospital mortality	0.80	0.79	0.79	0.491	0.547	0.762
Perioperative administrative outcomes
30-d mortality	0.77	0.77	0.77	0.492	0.946	0.478
Unexpected ICU admission	0.62	0.62	0.62	0.285	0.288	0.695
Readmission with 30 d	0.61	0.61	0.61	0.664	0.132	0.605
Unanticipated surgical approach conversion	0.60	0.61	0.60	0.081	0.594	0.037
Discharge to home	0.75	0.75	0.74	0.429	0.010	0.364
Composite events
Any postoperative event	0.63	0.63	0.63	0.384	0.074	0.051
Major complication	0.64	0.64	0.64	0.440	0.039	0.047

ASA, American Society of Anesthesiologists; AUC, area under the curve; ROC, receiver operating characteristics; CCI, Charlson Comorbidity Index; ICU, intensive care unit; mFI, Modified Frailty Index.