INS and polycystic ovary syndrome: FAI levels positively correlated with insulin levels and the degree of IR in NAPACA (Insulin R 0.54, 95% CI 0.16–0.78, P = 0.007, GIR R −0.56, 95% CI −0.79 – −0.19, P = 0.005, HOMA R 0.53, 95% CI 0.14–0.77, P = 0.008, QUICKI R −0.53, 95% CI −0.77 – −0.14, P < 0.05, MATSUDA R −0.49, 95% CI −0.83 – 0.10, P = 0.091) and PCOS patients (Insulin R 0.71, 95%CI 0.34 – 0.89, P = 0.002, GIR R −0.69, 95%CI −0.88 – −0.30, P = 0.003, HOMA R 0.70, 95%CI 0.31–0.89, P = 0.002, QUICKI R −0.7, 95% CI −0.89 – −0.31, P = 0.002, MATSUDA R −0.82, 95%CI −0.94 – −0.55, P = 0.001), (Table 2).