Significant differences were observed in age, BMI, SBP, DBP, duration of infertility, follicle-stimulating hormone, luteinizing hormone, total testosterone (To) concentration, anti-Müllerian hormone (AMH), antral follicle count (AFC), the number of follicles of diameter ≥ 14 mm and estradiol (E2) levels on the HCG trigger day, and the number of retrieved oocytes between the four PCOS phenotype and control groups (all P values were < 0.001). Here, AMH is linked to polycystic ovary syndrome.