Table 3.

Risk Calculator Outcomes

Entire Cohort (n=854)
	Did Not Have Event		Had Event		OR (Wald CI)	P-value	C-statistic (AUC)	Brier Score	Brier Score Cutoff
Outcome	n (%)	Median Risk	n (%)	Median Risk
Surgical Site Infection	669 (78.3)	9 (1.9-36.6)	185 (21.7)	11.5 (3-30.1)	1.08 (1.05 - 1.11)	<0.001	0.635	0.165	0.170
Death	836 (97.9)	0.5 (0-19.4)	18 (2.1)	2.4 (0.1-10.9)	1.24 (1.10 - 1.40)	0.001	0.74	0.021	0.021
Reoperation	797 (93.3)	3.2 (0.9-9.9)	57 (6.7)	5 (1.2-13.2)	1.44 (1.26 - 1.64)	<0.001	0.68	0.059	0.063
Readmission	686 (80.3)	8.6 (2.6-32.2)	168 (19.7)	10.2 (2.7-25.4)	1.03 (1.00 - 1.07)	0.042	0.565	0.157	0.158
Liver Surgery (n=475)
	Did Not Have Event		Had Event		OR (Wald CI)	P-value	C-statistic (AUC)	Brier Score	Brier Score Cutoff
Outcome	n (%)	Median Risk	n (%)	Median Risk
Surgical Site Infection	370 (77.9)	6.9 (2.8-21.6)	105 (22.1)	9.5 (3.0-23.9)	1.14 (1.08 - 1.20)	<0.001	0.653	0.162	0.172
Death	463 (97.5)	0.6 (0.0-19.4)	12 (2.5)	2.2 (0.5-10.9)	1.20 (1.04 - 1.39)	0.012	0.758	0.025	0.024
Reoperation	441 (92.8)	2.5 (0.9-9.3)	34 (7.2)	4.1 (1.2-8.9)	1.47 (1.23 - 1.75)	<0.001	0.686	0.063	0.067
Readmission	378 (79.6)	8.9 (3.9-32.2)	97 (20.4)	11.1 (4.0-20.9)	1.08 (1.03 - 1.13)	0.002	0.625	0.16	0.162
Pancreas Surgery (n=237)
	Did Not Have Event		Had Event		OR (Wald CI)	P-value	C-statistic (AUC)	Brier Score	Brier Score Cutoff
Outcome	n (%)	Median Risk	n (%)	Median Risk
Surgical Site Infection	175 (73.8)	15.4 (8.136.6)	62 (26.2)	16.2 (8.8-30.1)	1.02 (0.97 - 1.08)	0.454	0.543	0.193	0.193
Death	233 (98.3)	0.5 (0.1-13.6)	4 (1.7)	2.9 (0.1-8.5)	1.35 (1.02 - 1.77)	0.035	0.704	0.016	0.017
Reoperation	220 (92.8)	4.6 (2.2-9.9)	17 (7.2)	5.6 (2.9-9.4)	1.50 (1.12 - 2.00)	0.006	0.702	0.065	0.067
Readmission	195 (82.3)	12.6 (7.230.8)	42 (17.7)	13.3 (7.2-25.4)	1.00 (0.93-1.07)	0.947	0.505	0.146	0.146