Mortality was not related to access site after adjustment for covariates ( for radial vs. femoral access , adjusted odds ratio : 0.86 , 95 % confidence interval : 0.59 to 1.25 ) , but the radial access site was trending toward lower mortality for the 9 hospitals that used it for more than 10 % of their patients ( adjusted odds ratio : 0.61 , 95 % confidence interval : 0.36 to 1.02 ) .