Table 4.

Univariate and multivariate regression analyses of predictive factors of the presence of autoimmune and autoinflammatory diseases in patients with vitiligo (n = 294)

Variable	Univariate regression			Multivariate regression
	OR	95% CI	P	OR	95% CI	P
Age, years	1.019	1.001–1.037	0.036*	0.850	0.236–3.056	0.803
Female gender	2.242	1.302–3.860	0.004*	1.470	0.801–2.697	0.213
Disease duration	1.040	1.018–1.061	< 0.001*	1.240	0.345–4.456	0.742
Age at vitiligo onset	0.992	0.974–1.009	0.353	1.188	0.330–4.269	0.792
Affected BSA (1–25%)	1.684	1.004–2.825	0.048*	0.947	0.508–1.763	0.863
Family history of vitiligo	1.122	0.603–2.087	0.717	0.788	0.376–1.652	0.529
Family history of AIIDs	2.730	1.559–4.781	< 0.001*	2.436	1.310–4.530	0.005*
VIDA	1.120	0.959–1.308	0.152	1.161	0.978–1.377	0.088
Constant	-	-	-	0.085	-	< 0.001

*p < 0.05

AIIDs: autoimmune and autoinflammatory diseases, VIDA: Vitiligo Disease Activity Score