IL6 and polycystic ovary syndrome: In the subgroup analysis, significant differences in the IL-6 levels of the PCOS patients versus the controls were observed in the quartiles with HOMA2-IR ratios of .15–1.49 and >1.72 (SMD = 0.50, 95% CI = 0.14–0.85, P = 0.006 and SMD = 1.68, 95% CI = 0.54–2.81, P = 0.004, respectively).