VEGFA and lung cancer: VEGF -2578C > A A allele and CC genotype were associated with lung cancer risk; however, the AA genotype was not found in overall populations (A allele: OR = 1.26, 95% CI: 1.08–1.46, P = 0.003, Fig. 2; AA genotype: OR = 1.29, 95% CI: 0.89–1.89, P = 0.18, Fig. 3; CC genotype: OR = 0.72, 95% CI: 0.54–0.95, P = 0.02, Fig. 4; Table 2).