Table 5.  Receiver operating characteristic curve of qSOFA, SOFA scores and lactate level to predict in hospital and 6-month mortality.

	AUC (95% CI)	P- value	Cutoff value	Sensitivity	Specificity	+ PV	–PV
SOFA score
In hospital mortality	0.91 (0.89–0.92)	0.001	≥ 7	%78.1	%85.9	%59	%93.8
6-month mortality	0.83 (0.82–0.85)	0.001	≥ 6	%60.6	%86.1	%77.2	%73.7
APACHE II score
In hospital mortality	0.84 (0.83–0.86)	0.001	≥ 22	%79.9	%73.5	%43.9	%93.4
6-month mortality	0.82 (0.80–0.84)	0.001	≥ 21	%67.1	%79.1	%71.5	%75.5
qSOFA score
In hospital mortality	0.83 (0.80–0.85)	0.001*	≥ 2	%42.5	%93.9	%64.6	%86.3
6-month mortalityv	0.78 (0.76–0.80)	0.001*	≥ 2	%26.9	%96.9	%87	%62.9
Lactate level
In hospital mortality	0.73 (0.70–0.76)	0.001	≥ 2.8	%67.9	%69.5	%36.6	%89.3
6-month mortality	0.65 (0.63–0.67)	0.001	≥ 2.7	%53.3	%69.8	%57.9	%65.7

APACHE, Acute Physiology and Chronic Health Evaluation; AUC, Area under the curve; PV, Predictive value; SOFA, Sequential Organ Failure Assessment; qSOFA, Quick sequential organ failure assessment.