VEGFA and deep vein thrombosis: According to the main IVW analyses, the results of subgroup analyses of the causal effect of VEGF on DVT_PE (OR = 1.067, 95% CI, 1.008–1.129, P = 0.026) were consistent with above (Fig. 2B), but no causal association of VEGF with DVT risk (OR = 1.068, 95% CI, 0.992–1.149, P = 0.082) was identified (Fig. 2C).