title: Risk factors and in-hospital mortality in Chinese patients undergoing coronary artery bypass grafting: analysis of a large multi-institutional Chinese database.
abstract: OBJECTIVE
  This study was undertaken to delineate outcomes and to assess risk factors for in-hospital mortality among Chinese patients undergoing coronary artery bypass grafting.
  
  
  METHODS
  From 2007 to 2008, a total of 9838 consecutive adult patients undergoing coronary artery bypass grafting were enrolled in the Chinese Coronary Artery Bypass Grafting Registry, which included 43 centers from 17 province-level regions in China. This registry collected information on 67 preoperative factors and 30 operative factors believed to influence in-hospital mortality. The relationship between risk factors and in-hospital mortality was evaluated by univariate and logistic regression analyses.
  
  
  RESULTS
  Overall in-hospital mortality was 2.5%. Eleven risk factors were found to be significant predictors for outcome: age (continuous), body mass index (continuous), left ventricular ejection fraction (continuous), preoperative New York Heart Association functional class III or IV, chronic renal failure, extracardiac arteriopathy, chronic obstructive pulmonary disease, preoperative atrial fibrillation or flutter (within 2 weeks), preoperative critical state, other than elective surgery, and combined valve procedure. Calibration with the Hosmer-Lemeshow test was satisfactory (P=.35), and the discrimination power was good (area under the receiver operating characteristic curve, 0.81; 95% confidence interval, 0.79-0.84).
  
  
  CONCLUSIONS
  The risk profiles and in-hospital mortality of Chinese patients undergoing coronary artery bypass grafting were determined from data in the most up-to-date multi-institutional database. Eleven variables were demonstrated to be independent risk factors for in-hospital death after coronary artery bypass grafting.
authors: Department of Cardiovascular Surgery, State Key Laboratory for Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.
authors: Zhe
authors: Z
authors: Zheng
authors: Lu
authors: L
authors: Zhang
authors: Shengshou
authors: S
authors: Hu
authors: Xi
authors: X
authors: Li
authors: Xin
authors: X
authors: Yuan
authors: Huawei
authors: H
authors: Gao
mesh_terms: D002681:China / Q000453:epidemiology; D001026:Coronary Artery Bypass / Q000401:mortality*; D003327:Coronary Disease / Q000401:mortality / Q000601:surgery*; D017558:Elective Surgical Procedures / Q000401:mortality; D017052:Hospital Mortality / Q000208:ethnology; D006801:Humans; D016015:Logistic Models; D012042:Registries; D012307:Risk Factors