Table 2.

Cohort, calibration, and discrimination metrics for 30-, 90-, and 180-day post-operative mortality using LASSO logistic regression

	Number of patients	Number of outcomes	Candidate covariates (included)	AUROC	AUPRC	Calibration in the large	Calibration slope	Calibration intercept
30-day mortality	57,521	2579 (4.48%)	24,744 (419)	0.88	0.353	1.01	0.96	0.02
90-day mortality	57,521	3824 (6.65%)	24,744 (561)	0.878	0.431	0.99	1.02	0.01
1-year mortality	57,521	7383 (12.8%)	24,744 (581)	0.861	0.559	0.99	1.04	0.01

AUROC area under the receiver operating characteristic, AUPRC area under precision-recall curve