AMH and polycystic ovary syndrome: Not surprisingly, PCOS patients with 9.0 ± 4.5 ng/ml (range 2.64–13.94 ng/ml) showed 4 times higher AMH concentrations when compared with NPCOS patients (1.8 ± 1.7 ng/ml, range 0.57–4.16 ng/ml, P = 0.003) (Fig. 4).