Multivariate stepwise logistic regression analysis using preoperative and postoperative variables identified that an increase of serum creatinine compared with average at 1 year , 3 months , and 4 weeks postoperatively were independent risk factors for the development of CRF or ESRD with odds ratios of 2.6 , 2.2 , and 1.6 , respectively .
O O O O O O O O O O O O O O O O B-ChemicalEntity O O O O O O O O O O O O O O O O O O O O O O B-DiseaseOrPhenotypicFeature O B-DiseaseOrPhenotypicFeature O O O O O O O O O O O O O