Table 7.

Model performance by tenfold cross validation for ICU transfer, shock, and RRT.

Outcome	Statistics	Lasso LR	Elastic net LR	XGBoost
ICU transfer	Sensitivity (95% CI)	0 (0,0.08)	0.02 (0,0.12)	0.02 (0,0.12)
	Specificity (95% CI)	1 (0.99,1)	1 (0.99,1)	0.92 (0.89,0.95)
	AUC (95% CI)	0.6 (0.52,0.68)	0.58 (0.5,0.66)	0.51 (0.36,0.65)
Shock	Sensitivity (95% CI)	0.03 (0,0.1)	0.03 (0,0.1)	0.45 (0.33,0.57)
	Specificity (95% CI)	0.99 (0.98,1)	0.99 (0.98,1)	0.91 (0.89,0.94)
	AUC (95% CI)	0.75 (0.68,0.83)	0.76 (0.69,0.82)	0.7 (0.58,0.82)
RRT	Sensitivity (95% CI)	0.25 (0.1,0.47)	0.25 (0.1,0.47)	0.58 (0.37,0.78)
	Specificity (95% CI)	0.99 (0.98,1)	0.99 (0.98,1)	0.98 (0.97,0.99)
	AUC (95% CI)	0.88 (0.79,0.98)	0.88 (0.78,0.98)	0.78 (0.6,0.95)

The sensitivity and specificity were calculated at the cut-off value of 0.5.