APOE and Insulin resistance: BMI correlated positively with APCS (r = 0.52, p = 0.003) and apoE (r = 0.44, p = 0.02) in PCOS women; Homeostasis model of assessment–insulin resistance (HOMA-IR) correlated positively with apoE (r = 0.37, p = 0.04) in PCOS women.