Table V.

Risk of ICU mortality. Optimum cut-off points and indicators

Test variable	Sensitivity	Specificity	PPV	NPV	OR	95% CI for OR		P-value
Age ≥ 51.5	0.5075	0.7647	0.8095	0.4407	3.3485	1.3265	8.4523	0.0087
SOFA ≥ 10.5	0.9701	0.6563	0.8553	0.9130	62.0455	12.7167	302.7232	< 0.0001
APACHE II ≥ 21	0.8507	0.7500	0.8769	0.7059	17.1000	6.0145	48.6174	< 0.0001
SAPS II ≥ 39.5	0.9254	0.6875	0.8611	0.8148	27.2800	8.3944	88.6537	< 0.0001
MELD UNOS ≥ 33.5	0.5522	0.8824	0.9024	0.5000	9.2500	2.9317	29.1858	< 0.0001
INR ≥ 2.41	0.5821	0.8529	0.8864	0.5088	8.0786	2.7819	23.4596	< 0.0001
Prothrombin time ≥ 31.2	0.4925	0.9706	0.9706	0.4925	32.0294	4.1385	247.8866	< 0.0001
Creatinine ≥ 1.83	0.6716	0.7941	0.8654	0.5510	7.8896	2.9752	20.9214	< 0.0001
GCS ≤ 14.5	0.8060	0.5294	0.7714	0.5806	4.6731	1.8893	11.5588	0.0006
Albumin ≤ 2.545	0.5273	0.8750	0.8788	0.5185	7.8077	2.4140	25.2523	0.0002

APACHE – Acute Physiology and Chronic Health Evaluation, CI – confidence interval, GCS – Glasgow Coma Scale, INR – prothrombin ratio, MELD UNOS – Model of End-stage Liver Disease United Network for Organ Sharing, NPV – negative predictive value, OR – odds ratio, PPV – positive predictive value, SAPS – Simplified Acute Physiology Score, SOFA – Sequential Organ Failure Assessment.