VEGFA and ovarian carcinoma: Our analysis results statistically support the conclusions that high/ positive expression of VEGF had a significant association with the prognosis of ovarian cancer, with the pooled HRs were 2.24 (95% CI 1.36–3.70; P=0.002) in overall survival, 1.60 (95% CI 1.11–2.31; P=0.01) in progression-free survival and 3.49 (95% CI 1.27–9.56; P=0.02) in disease-free survival.