INS and polycystic ovary syndrome: PCOS was positively correlated with several parameters, including FPG (r = 0.113, P = 0.020), insulin (r = 0.189, P < 0.001), BMI (r = 0.230, P < 0.001), AMH (r = 0.628, P < 0.001), LH (r = 0.474, P < 0.001), TSTO (r = 0.381, P < 0.001) and AFC (r = 0.656, P < 0.001).