Table 3.

Studies performing Receiver Operating Curve (ROC) analysis

First Author	Outcome	Optimal NLR Cut-off Value	Area under the curve (AUC)	Sensitivity (%)	Specificity (%)
Yang AP et al	Severity	3.3	0.841	88	63.6
Sun S et al	Severity	4.5	NR	74.07	89.89
Song CY et al	Severity	5.87	0.72	64	81
Ma Y et al	Severity	4.06	0.727	61.9	76.2
Yan X et al	Mortality	11.75	0.945	97.5	78.1
Cheng B et al	Mortality	7.945	0.827	65.3	90.6

NR = Not Reported.