Therefore, in the final pooled analysis, 6 studies were eligible for VEGF gene rs2010963 polymorphism and PCOS risk (952 cases and 960 controls), 6 for rs833061 polymorphism and PCOS risk (936 cases and 1010 controls), 5 for rs3025039 polymorphism and PCOS risk (769 cases and 779 controls), 5 for rs699947 polymorphism and PCOS risk (779 cases and 834controls), and 5 for rs1570360 polymorphism and PCOS risk (752 cases and 779 controls). The gene discussed is VEGFA; the disease is polycystic ovary syndrome.