Figure 3From: Association of TNF-alpha, IL-6 and IL-1beta gene polymorphisms with polycystic ovary syndrome: a meta-analysis A forest plot for the correlation of the TNF-alpha (−308 G/A) polymorphism with obesity in patients with polycystic ovary syndrome (BMI ≥ 25 kg/m 2 vs. BMI < 25 kg/m 2 ) based on the dominant model (AA + GA vs. GG; stratified by country). Back to article page