title: Association between metabolic syndrome and the presence of kidney stones in a screened population.
abstract: BACKGROUND
  Components of metabolic syndrome have been associated with kidney stone disease, but little evidence is available to support a relationship between metabolic syndrome and kidney stone development in healthy large screened populations.
  
  
  METHODS
  Cross-sectional analysis.
  
  
  METHODS
  Data were obtained from 34,895 individuals who underwent general health screening tests between January 2006 and December 2006 at the Asan Medical Center.
  
  
  METHODS
  Metabolic syndrome was defined according to criteria established by the National Cholesterol Education Program Adult Treatment Panel III, American Heart Association, and National Heart, Lung, and Blood Institute.
  
  
  METHODS
  The presence of kidney stones was evaluated using computed tomography or ultrasonography.
  
  
  RESULTS
  Of all those screened, 839 (2.4%) had radiologic evidence of kidney stones and metabolic syndrome was diagnosed in 4,779 (13.7%). The multivariable-adjusted OR for kidney stones increased with an increasing quintile of waist circumference and systolic/diastolic blood pressure (P < 0.001). Age, sex, hypertension, and metabolic syndrome status were independent risk factors for kidney stones. The presence of metabolic syndrome had an OR of 1.25 (95% CI, 1.03-1.50) for kidney stone prevalence. In participants with hypertension, the OR for the presence of kidney stones was 1.47 (95% CI, 1.25-1.71) compared with that for participants without hypertension after adjustment for other variables.
  
  
  CONCLUSIONS
  Cross-sectional design, absence of stone composition.
  
  
  CONCLUSIONS
  Metabolic syndrome is associated with a significantly increased risk of kidney stone development. Our findings suggest the need for interventional studies to test the effects of preventing and treating metabolic syndrome on the risk of kidney stone development.
authors.affiliation: Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors.forename: In Gab
authors.initials: IG
authors.lastname: Jeong
authors.forename: Taejin
authors.initials: T
authors.lastname: Kang
authors.forename: Jeong Kyoon
authors.initials: JK
authors.lastname: Bang
authors.forename: Junsoo
authors.initials: J
authors.lastname: Park
authors.forename: Wansuk
authors.initials: W
authors.lastname: Kim
authors.forename: Seung Sik
authors.initials: SS
authors.lastname: Hwang
authors.forename: Hong Kyu
authors.initials: HK
authors.lastname: Kim
authors.forename: Hyung Keun
authors.initials: HK
authors.lastname: Park
mesh_terms: D000328:Adult; D015897:Comorbidity; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000175:diagnosis / Q000453:epidemiology*; D008297:Male; D024821:Metabolic Syndrome / Q000453:epidemiology*; D008875:Middle Aged; D016017:Odds Ratio; D012189:Retrospective Studies; D012307:Risk Factors; D055815:Young Adult