PAPPA and polycystic ovary syndrome: The mean of inhibin-A is 276.14 ± 129.38 in the PCOS group and 223.44 ± 102.07 in the control group, showing a significant association between the two groups in this regard (P = 0.001); however, no significant difference was observed in PAPP-A, HCG and UE3 levels between the PCOS and control groups.