Table 2 Prediction accuracy of each task made at different time points

	Hospital A	Hospital B
Inpatient mortality, AUROC ^a (95% CI)
24 h before admission	0.87 (0.85–0.89)	0.81 (0.79–0.83)
At admission	0.90 (0.88–0.92)	0.90 (0.86–0.91)
24 h after admission	0.95 (0.94–0.96)	0.93 (0.92–0.94)
Baseline (aEWS^b) at 24 h after admission	0.85 (0.81–0.89)	0.86 (0.83–0.88)
30-day readmission, AUROC (95% CI)
At admission	0.73 (0.71–0.74)	0.72 (0.71–0.73)
At 24 h after admission	0.74 (0.72–0.75)	0.73 (0.72–0.74)
At discharge	0.77 (0.75–0.78)	0.76 (0.75–0.77)
Baseline (mHOSPITAL^c) at discharge	0.70 (0.68–0.72)	0.68 (0.67–0.69)
Length of stay at least 7 days, AUROC (95% CI)
At admission	0.81 (0.80–0.82)	0.80 (0.80–0.81)
At 24 h after admission	0.86 (0.86–0.87)	0.85 (0.85–0.86)
Baseline (Liu^d) at 24 h after admission	0.76 (0.75–0.77)	0.74 (0.73–0.75)
Discharge diagnoses (weighted AUROC)
At admission	0.87	0.86
At 24 h after admission	0.89	0.88
At discharge	0.90	0.90

^aArea under the receiver operator curve
^bAugmented Early Warning System score
^cModified HOSPITAL score for readmission
^dModified Liu score for long length of stay
The bold values indicate the highest area-under-the-receiver-operator-curve for each prediction task

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