MIF and vitiligo: The results suggested that as compared to the one-factor model, rs755622 genotype of MIF (G/G, G/C + C/C) (testing balance accuracy: 77.08%, OR (95%CI): 12.143 (1.387–106.298), P = 0.0047), the 5-factor model consisted of the aforementioned genotype and the additional factors including gender, radioiodine treatment, thyroid gland surgery, and vitiligo showed to increase the prediction accuracy (testing balance accuracy: 86.72%, OR (95%CI): ∞, P<1.000×10−4).