A multiple logistic regression analysis revealed fluid administration greater than the restriction limits ( odds ratio , 4.198 ; 95 % confidence interval , 1.7-10 .366 ; P = .002 ) and a nonfunctioning epidural analgesia ( odds ratio , 3.365 ; 95 % confidence interval , 1.367-8 .283 ; P = .008 ) as independent predictors of postoperative complications .
