title: Elevated serum uric acid and risk of cardiovascular or all-cause mortality in people with suspected or definite coronary artery disease: A meta-analysis.
abstract: Serum uric acid (SUA) has been recognized as an independent risk factor for mortality in the general population. We performed this meta-analysis to determine whether elevated SUA levels are associated with greater risk of cardiovascular or all-cause mortality in people with suspected or definite coronary artery disease (CAD).
  
  
  
  The Pubmed and Embase databases were searched up to April 1, 2016 for the longitudinal studies that investigated the association between the elevated SUA and cardiovascular or all-cause mortality risk in people with suspected or definite CAD. Pooled adjusted risk ratio (RR) and corresponding 95% confidence interval (CI) were calculated for the highest vs. the lowest SUA category or each 1 mg/ml SUA rise.
  
  
  
  Nine studies enrolling 25,229 participants were included in the analyses. The highest vs. lowest SUA category was associated with greater risk of cardiovascular mortality (RR 2.09; 95% CI: 1.45-3.02) and all-cause mortality (RR 1.80; 95% CI: 1.39-2.34) after adjustment for potential confounders in a random effects model. Moreover, each 1 mg/ml SUA rise significantly increased by 12% cardiovascular mortality and by 20% all-cause mortality.
  
  
  
  Elevated SUA levels are strongly and independently associated with greater risk of cardiovascular and all-cause mortality in people with suspected or definite CAD.
authors.affiliation: Department of Cardiology, Affiliated Hospital of Chengde Medical College, Chengde, Hebei province, PR China. Electronic address: wangruijuancd@163.com.
authors.forename: Ruijuan
authors.initials: R
authors.lastname: Wang
authors.affiliation: Department of Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde, Hebei province, PR China.
authors.forename: Youxin
authors.initials: Y
authors.lastname: Song
authors.affiliation: Department of Cardiology, Affiliated Hospital of Chengde Medical College, Chengde, Hebei province, PR China.
authors.forename: Yaqi
authors.initials: Y
authors.lastname: Yan
authors.affiliation: Department of Cardiology, Affiliated Hospital of Chengde Medical College, Chengde, Hebei province, PR China.
authors.forename: Zhenjiang
authors.initials: Z
authors.lastname: Ding
mesh_terms: D000368:Aged; D002318:Cardiovascular Diseases / Q000097:blood* / Q000150:complications / Q000401:mortality*; D003324:Coronary Artery Disease / Q000097:blood* / Q000150:complications / Q000401:mortality; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009026:Mortality; D064887:Observational Studies as Topic; D011446:Prospective Studies; D012189:Retrospective Studies; D012307:Risk Factors; D014527:Uric Acid / Q000097:blood*
chemical_list: D014527:Uric Acid
keywords: All-cause mortality; Cardiovascular mortality; Coronary artery disease; Meta-analysis; Uric acid