Table 4.

Predictive value of independent risk factors associated with patient mortality.

Variable	AUC	95%CL	Cutoff value	Sensitivity	Specificity	Youden index	P-value
HRV	0.737	0.645–0.83	0.3816598	0.6	0.76	0.36	0.000
SOFA score	0.728	0.637–0.819	4.5	0.85	0.56	0.41	0.000
APACHE II score	0.776	0.693–0.86	17.5	0.8	0.667	0.467	0.000
HRV + SOFA+APACHE II	0.831	0.754–0.907	0.3543276	0.775	0.773	0.548	0.000