Similar results were obtained when there were higher levels of serum chemerin in women with PCOS and BMI >25 kg/m2 compared to women with PCOS and BMI <25 kg/m2; (WMD: 2.59 pg/ml, 95% CI: 2.02, 3.16, p < .001). This evidence concerns the gene RARRES2 and polycystic ovary syndrome.