Table 4.

Sensitivity analysis of cytokines associated with vitiligo.

Exposure	SNPs	MR-Egger intercept		Cochrane’s Q IVW		Cochrane’s Q Egger		Correct causal direction
		Intercept value	p-value	Q-value	p-value	Q-value	p-value
CCL19	13	0.005	0.892	10.9	0.54	10.9	0.46	True
CXCL6	11	0.05	0.15	20.4	0.33	15.9	0.07	True
IL-6	8	0.07	0.15	8.1	0.32	5.4	0.50	True

SNPs, single-nucleotide polymorphism; IVW, inverse-variance weighted; MR. Mendelian randomization.