IFNG and polycystic ovary syndrome: In addition, using the weighted median method, the TRAIL level is negatively associated with PCOS (OR = 0.832, 95% CI = 0.711 – 0.974, P = 0.021), and the monokine induced by the gamma interferon (MIG) level is positively associated with PCOS (OR = 1.293, 95% CI = 1.012 – 1.652, P = 0.040).