The results of meta-analysis were consistent with the protein abundance, that increased VEGFA mRNA level were significantly associated with advanced tumor stage (OR=1.93, 95% CI: 1.33-2.82, P=0.588, and I2=0.0%) (Figure 2E) and big tumor size (OR=1.70, 95% CI: 1.05-2.74, P=0.385, and I2=5.0%) (Figure 2G) in ADC patients. The gene discussed is VEGFA; the disease is neoplasm.