Table 3. Evaluation of potentially useful markers of 90-day mortality after discharge.

	AUC (95% CI)	P	Cutt-off	Sensibility	Specificity	PPVa	NPVb	LR+c	LR−d	DORe	Accuracy
CRPf at admission	0.590 (0.511–0.670)	0.024	196	52	67	31	83	1.58	0.72	2.20	64
Albumin at admission	0.621 (0.545–0.697)	0.001	25	65	51	29	83	1.33	0.69	1.93	54
CRPf/albumin at admission	0.612 (0.534–0.689)	0.005	8.7	54	66	31	83	1.59	0.70	2.28	63
CRPf at discharge	0.597 (0.517–0.678)	0.022	50	68	55	31	85	1.51	0.58	2.60	58
Albumin at discharge	0.647 (0.572–0.722)	<0.001	25	65	51	29	83	1.33	0.54	2.79	55
CRPf/albumin at discharge	0.619 (0.540–0.698)	0.005	2	72	52	31	86	1.50	0.54	2.79	57

a – PPV  =  positive predictive value; b – NPV  =  negative predictive value; c- LR+  =  Likelihood ratio for a positive result; d – LR−  =  Likelihood ratio for a negative result; e – DOR  =  diagnostic odds ratio (calculated dividing LR+ by LR-); f – CRP  =  C-reactive protein;

Comparisons between AUCs: CRP/Albumin at admission vs. CRP at admission: p = 0.0455; CRP/Albumin at discharge vs. CRP at discharge: p = 0.0438. For all other comparisons: p = NS.