Table 7.

Area under the curve for predicting 28-day mortality.

Variables	Area under the curve	Standard error	P-value	95% Confidence interval
				Lower bound	Upper bound
SOFA score	0.841	0.033	0.000	0.776	0.905
PCT	0.805	0.036	0.000	0.734	0.876
NT-proBNP	0.576	0.051	0.128	0.477	0.675
PT	0.542	0.049	0.401	0.446	0.638
TT	0.589	0.047	0.074	0.496	0.682
IL-6	0.597	0.048	0.051	0.502	0.692
SOFA48h	0.821	0.034	0.000	0.753	0.888

PCT, procalcitonin; NT-proBNP, N-terminal brain natriuretic propeptide; IL-6, interleukin 6; PT, prothrombin time; TT, thrombin time; SOFA, Sequential Organ Failure Assessment score; SOFA48h, Sequential Organ Failure Assessment score at 48 hours.