Table 3.

The area under the curve values of age, copeptin, CRP, procalcitonin, ferritin, D-dimer, and troponin for severe disease.

For severe disease	AUC	p*	95% CI Lower-upper
D-dimers (ng/mL)	0.72	0	0.616-0.824
Troponin (ng/L)	0.688	0.002	0.578-0.798
Procalcitonin (ng/mL)	0.684	0.004	0.566-0.801
Age (years)	0.672	0.005	0.559-0.784
Ferritin (µg/L)	0.657	0.01	0.543-0.771
C-reactive protein (mg/L)	0.656	0.011	0.542-0.77
Copeptin (ng/mL)	0.643	0.019	0.528-0.758

AUC: Area under the curve, CI: Confidence interval.

^*p value for under the curve area.

While making the cut-off value decision, it was decided according to the highest j values. (Youden's J statistic).