title: Relationship between metabolic syndrome and prostate volume in Korean men under 50 years of age.
abstract: OBJECTIVE
  The metabolic syndrome (MS) has been accepted as an important cause of benign prostatic hyperplasia (BPH) in old age. However, there are no studies of the influence of MS on prostate volume in relatively young adults. We evaluated the relationship between parameters of MS and prostate volume in men under 50 years of age who visited our health promotion center.
  
  
  METHODS
  A total of 968 men aged 30 to 49 years were enrolled from March 2009 to June 2010. Prostate volume by transrectal ultrasonography of the prostate, serum prostate-specific antigen, digital rectal examination, urinalysis, and MS-related parameters were investigated. We evaluated the correlations of prostate volume with MS and MS-related parameters.
  
  
  RESULTS
  Prostate volume was not significantly larger in the MS group (18.4 cc; range: 14.3-23.1 cc) than in the non-MS group (17.8 cc; range, 13.6-21.6 cc). The prostate volumes in subjects with abnormal fasting plasma glucose (FPG) (18.9 cc; range, 14.3-22.7 cc) and abnormal waist circumference (WC) (19.5 cc; range, 15.6-23.7 cc) were significantly larger than those of subjects with normal parameters (16.9 [range, 12.7-20.4] cc and 17.5 [range, 13.3-21.2] cc, respectively; p=0.001). The logistic regression analysis showed the FPG level and WC to have a significantly positive correlation with the prostate volume (odds ratios: 1.441 [95% CI: 1.303-1.643] and 2.305 [95% CI: 1.470-3.614], respectively).
  
  
  CONCLUSIONS
  Groups with abnormal FPG and WC had larger prostate volumes than did normal groups. The abnormal FPG and WC could be more important factors than MS in prostate volume enlargement in relatively young adults.
authors.affiliation: Department of Urology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Sung Jin
authors.initials: SJ
authors.lastname: Yim
authors.forename: Young Sam
authors.initials: YS
authors.lastname: Cho
authors.forename: Kwan Joong
authors.initials: KJ
authors.lastname: Joo