The model that best predicted VAT amount in patients with PCOS included ferritin, insulin at baseline, glucose at the 120 min of OGTT, and TG as independent variables (p = 0.02, β = 0.17; p = 0.001, β = 0.30; p = 0.007, β = 0.26; p = 0.001, β = 0.33, respectively). The gene discussed is INS; the disease is polycystic ovary syndrome.