TNF and polycystic ovary syndrome: The odds ratio (OR) of PCOS status according to ANGPTL, Omentin1, Leptin, IL6, TNF-α, BMI, CRP, age and LDL levels using logistic regression analysis. Nagelkerke R Square: 0.698, Omnibus tests of model coefficients< 0.0001, PPV: 80 %, NPV: 90 %