Subgroup analysis by psoriasis type found significant differences in adiponectin serum levels between the psoriasis patients and healthy controls (Supplementary Table 1, Psoriasis vulgaris: SMD = -1.29, 95% CI -2.55 to -0.03; I2 = 97.7%, Others: SMD = -0.15, 95% CI -1.14 to 0.84, I2 = 90.7%). Here, ADIPOQ is linked to psoriasis vulgaris.