Table 3. Performance parameters of scoring system as predictors of short-term and long-term mortality of critically ill subjects.

Models	auROC (95%)	P	Cut-Off Point	Se (%)	Sp (%)	+LR	-LR	+PV	-PV
Training cohort (30-day)
GV-SAPS II	0.825 (0.814–0.835)	< 0.001	28	75.94	73.23	2.84	0.33	28.8	95.5
SAPS II	0.796 (0.784–0.807)	< 0.001	38	74.63	71.15	2.59	0.36	27	95.2
SOFA	0.790 (0.778–0.801)	< 0.001	5	64.32	78.41	2.98	0.46	29.8	93.9
Elixhauser score	0.720 (0.708–0.733)	< 0.001	0	68.9	66.9	2.08	0.46	22.9	93.8
Training cohort (9-month)
GV-SAPS II	0.764 (0.752–0.776)	< 0.001	26	71.33	67.55	2.2	0.42	33.5	91.1
SAPS II	0.740 (0.728–0.752)	< 0.001	32	77.46	59.98	1.94	0.38	30.8	92.1
SOFA	0.717 (0.705–0.730)	< 0.001	5	51.86	78.8	2.45	0.61	36	87.7
Elixhauser score	0.722 (0.710–0.735)	< 0.001	0	67.18	69.23	2.18	0.47	33.4	90.2
Validation cohort (30-day)
GV-SAPS II	0.824 (0.813–0.834)	< 0.001	26	77.91	71.11	2.7	0.31	22.4	96.8
SAPS II	0.793 (0.782–0.804)	< 0.001	33	83.64	64.69	2.37	0.25	20.3	97.4
SOFA	0.772 (0.760–0.783)	< 0.001	5	55.01	83.4	3.31	0.54	26.2	94.5
Elixhauser score	0.724 (0.712–0.736)	< 0.001	3	65.44	68.87	2.1	0.5	18.4	94.9
Validation cohort (9-month)
GV-SAPS II	0.738 (0.725–0.750)	< 0.001	24	70.61	63.25	1.92	0.46	26.7	91.9
SAPS II	0.722 (0.710–0.735)	< 0.001	29	79.83	56.28	1.83	0.36	25.7	93.6
SOFA	0.674 (0.661–0.687)	< 0.001	6	31.76	91.33	3.66	0.75	40.9	87.6
Elixhauser score	0.724 (0.712–0.737)	< 0.001	3	64.26	71.19	2.23	0.5	29.7	91.3

NOTE. Se, sensitivity; Sp, specificity; +LR, positive likelihood ratio; -LR, negative likelihood ratio; +PV, positive predictive value; -PV, negative predictive value; CI, confidence interval.