KDR and coronary artery disorder: On the contrary, coactions of VEGFA (rs699947 CA/AA) and VEGFR2 (rs1870377 TA) were associated with higher risk of CHD (CATA vs CCTT: OR = 1.71, 95% CI = 1.04–2.81, P = 0.034; AATA vs CCTT: OR = 2.01, 95% CI = 1.20–3.38, P = 0.008).