Table 4.

Comparative Predictors of Mortality

	Total	Mortality%	Sensitivity	Specificity	Youden Indexa	PPV	NPV	Accuracyb
Age≥55.5	76	10%	0.57	0.63	0.21	0.10	0.95	0.63
APACHE ≥10.5	59	22%	0.93	0.75	0.68	0.22	0.99	0.76
AKI	66	20%	0.93	0.71	0.64	0.20	0.99	0.73
Dobutamin	9	33%	0.21	0.97	0.18	0.33	0.94	0.90

PPV, Positive predictive value; NPV, Negative predictive value; APACHE, Acute Physiology and Chronic Health Evaluation; AKI, Acute Kidney Injury.

^aYouden index = sensitivity+Specificity – 1 ;

^baccuracy = (true results/ all results)