title: Serum urate association with hypertension in young adults: analysis from the Coronary Artery Risk Development in Young Adults cohort.
abstract: OBJECTIVE
  To determine if serum urate concentration is associated with development of hypertension in young adults.
  
  
  METHODS
  Retrospective cohort analysis from 4752 participants with available serum urate and without hypertension at baseline from the Coronary Artery Risk Development in Young Adults (CARDIA) study; a mixed race (African-American and White) cohort established in 1985 with 20 years of follow-up data for this analysis. Associations between baseline serum urate concentration and incident hypertension (defined as a blood pressure greater or equal to 140/90 or being on antihypertensive drugs) were investigated in sex-stratified bivariate and multivariable Cox-proportional analyses.
  
  
  RESULTS
  Mean age (SD) at baseline was 24.8 (3.6) years for men and 24.9 (3.7) years for women. Compared with the referent category, we found a greater hazard of developing hypertension starting at 345 µmol/l (5.8 mg/dl) of serum urate for men and 214 µmol/l (3.6 mg/dl) for women. There was a 25% increase in the hazard of developing hypertension in men (HR1.25 (95% CI 1.15 to 1.36)) per each mg/dl increase in serum urate but no significant increase in women (HR 1.06 (95%CI 0.97 to 1.16)).
  
  
  CONCLUSIONS
  We found a significant independent association between higher serum urate concentrations and the subsequent hazard of incident hypertension, even at concentrations below the conventional hyperuricaemia threshold of 404 µmol/l (6.8 mg/dl).
authors.affiliation: VA Medical Center, Birmingham, AL, USA.
authors.forename: Angelo L
authors.initials: AL
authors.lastname: Gaffo
authors.forename: David R
authors.initials: DR
authors.lastname: Jacobs
authors.forename: Femke
authors.initials: F
authors.lastname: Sijtsma
authors.forename: Cora E
authors.initials: CE
authors.lastname: Lewis
authors.forename: Ted R
authors.initials: TR
authors.lastname: Mikuls
authors.forename: Kenneth G
authors.initials: KG
authors.lastname: Saag
mesh_terms: D015331:Cohort Studies; D015897:Comorbidity; D005260:Female; D006801:Humans; D006973:Hypertension / Q000097:blood / Q000175:diagnosis / Q000453:epidemiology*; D033461:Hyperuricemia / Q000097:blood / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D012189:Retrospective Studies; D018570:Risk Assessment; D014481:United States / Q000453:epidemiology; D014527:Uric Acid / Q000097:blood*; D055815:Young Adult
chemical_list: D014527:Uric Acid