Table 5.

Capacity of biomarkers in the evaluation of oxidative stress in alopecia areata.

		AUC*	P	95% CI‡	Cut-off	Sensitivity	Specificity	Positive predictive value	Negative predictive value
						%	%	%	%
SOD††	U/mL	0.68	0.018	0.53–0.84	1.83	96	62	67	95
CAT†	IU/mL	0.58	0.27	0.43–0.74	22.8	65	65	61	69
GSH-ST§	IU/mL	0.74	0.002	0.61–0.87	2.8	73	71	68	76
MDA**	nmol/mL	0.88	<0.0001	0.80–0.97	26.1	85	77	76	86
IMA||	ΔABSU	0.97	<0.0001	0.93–0.99	0.55	96	94	93	97

* Area under the curve, † catalase, ‡ confidence interval, § glutathione-S-transferase, || ischaemia-modified albumin, **malondialdehyde, †† superoxide dismutase.