Table 3.

Receiver operating characteristic (ROC) curve parameters for the serum testosterone level and other biomarkers on the second week of admission in COVID-19 male patients.

Variable	Cutoff value	Youden index	Sensitivity (%)	Specificity (%)	AUC	95% CI	P value
Testosterone	3.26	0.621	65.0	97.1	0.876	0.759 ∼ 0.949	<0.001
Neutrophils count	5.25	0.514	100.0	51.4	0.725	0.590 ∼ 0.836	<0.001
Lymphocyte count	0.56	0.429	71.4	71.4	0.756	0.623 ∼ 0.861	<0.001
C-reactive protein	32.55	0.406	50.0	90.6	0.727	0.585 ∼ 0.841	0.002
IL-6	22.21	0.389	72.2	66.7	0.715	0.566 ∼ 0.836	0.006

AUC: Area under the ROC curve; CI: Confidence Interval.