Published data on the association between vascular endothelial growth factor (VEGF) -2578C/A polymorphism and cancer risk is inconclusive. To derive a more precise estimation of association between VEGF -2578C/A polymorphism and the risk of cancer, we performed a meta-analysis of 5415 cancer cases and 5848 controls from 16 published case-control studies. We used odds ratios (ORs) with 95% confidence intervals (CIs) to assess the strength of the association. Our meta-analysis indicated that VEGF -2578C/A polymorphism was associated with the risk of colorectal cancer under homozygote comparison (OR=0.70, 95% CI=0.53-0.92), dominant model (OR=0.72, 95% CI=0.57-0.92), and recessive model (OR=0.82, 95% CI=0.67-1.01), although no evidence of association between VEGF -2578C/A polymorphism and cancer risk was observed as we compared in the pooled analyses (homozygote comparison: OR=0.97, 95% CI=0.81-1.16). More studies are needed to detect VEGF -2578C/A polymorphism and its association with cancer in different ethnic populations incorporated with environmental exposures in the susceptibility of different kinds of cancer.
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