Table 7.

Receiver operating characteristics (ROC) curve statistics for SIMPLE scores at various time points 6–72 h.

Time point	Sensitivity (95% CI)	Specificity (95% CI)	Area under curve (AUC)	Cut-off value	p-value*
6 h	92.00 (73.5–98.7)	85.00 (67.7–92.6)	0.926	>8.5	<0.001
12 h	90.00 (73.5–97.9)	94.44 (72.7–99.9)	0.956	>8	<0.001
18 h	93.33 (77.9–99.2)	94.44 (72.7–99.9)	0.949	>8	<0.001
24 h	93.33 (77.9–99.2)	94.44 (72.7–99.9)	0.961	>8	<0.001
48 h	100.00 (88.4–100.0)	94.44 (72.7–99.9)	0.987	>6	<0.001
72 h	100.00 (88.4–100.0)	94.44 (72.7–99.9)	0.991	>6	<0.001

^*Each p-value shows the statistical significance of AUC for the given time point.