FABP4 and polycystic ovary syndrome: In the PCOS group, we observed correlations of serum A-FABP concentration with WHR (r = 0.26, p = 0.04) and percentage of adipose tissue assessed by bioelectrical impedance analysis (r = 0.33, p < 0.01), whereas these correlations were not found in the control group (all p > 0.05).