Table 2. Analysis for the optimal cutoff point of CRP, ferritin, LDH, and cytokines in serum.

Variable	AUC	95% CI	P value	Cutoff value	Sensibility	Specificity
LDH	0.688	0.561–0.816	0.001	548 U/L	0.462	0.968
CRP	0.754	0.637–0.871	0.001	25.35 µg/L	0.462	0.962
Ferritin	0.707	0.578–0.835	0.005	323.25 mg/L	0.795	0.577
IL-2	0.552	0.408–0.696	0.487
IL-4	0.570	0.429–0.711	0.346
IL-6	0.833	0.728–0.937	<0.001	15.920 pg/mL	0.641	0.920
IL-10	0.769	0.651–0.888	<0.001	6.145 pg/mL	0.692	0.800
IL-17A	0.481	0.339–0.622	0.794
TNF-α	0.728	0.604–0.852	0.002	0.275 pg/mL	0.846	0.520
IFN-γ	0.588	0.446–0.729	0.239

LDH, lactate dehydrogenase; CRP, C-reactive protein; IL, interleukin; TNF-α, tumor necrosis factor-α; IFN-γ, interferon-γ.