Inverse probability treatment weighted analyses also confirmed CVI as an independent predictor for reduced in-hospital MACE ( odds ratio , 0.38 ; 95 % CI , 0.15-0 .96 ; P = 0.040 ) and survival at 1 year ( hazard ratio , 0.44 ; 95 % CI , 0.21-0 .93 ; P = 0.033 ) .