Table 4.

Analysis of receiver operating characteristics curve for predicting in-hospital mortality of patients with COVID-19

Variables	P value	AUC (95% CI)	Sensitivity	Specificity	Cut-off value	PPV	NPV
IL-2R	<0.001	0.82 (0.78 to 0.87)	0.80	0.73	755.50	0.72	0.55
IL-6	<0.001	0.85 (0.81 to 0.89)	0.77	0.75	22.80	0.71	0.80
IL-8	<0.001	0.69 (0.64 to 0.75)	0.66	0.62	20.50	0.58	0.55
IL-10	<0.001	0.75 (0.69 to 0.81)	0.80	0.66	5.15	0.65	0.55
TNF	<0.001	0.71 (0.65 to 0.77)	0.56	0.79	10.05	0.68	0.55

AUC, area under curve; IL, interleukin; IL-2R, interleukin 2 receptor; NPV, negative predictive value; PPV, positive predictive value; TNF, tumour necrosis factor.