title: Increased incidence of metabolic syndrome in older men with high normotension.
abstract: BACKGROUND
  Hypertension and prehypertension are correlated with future cardiovascular disease (CVD) and diabetes. Whether these harmful effects of the blood pressure (BP) could be found in normotensive is of interest.
  
  
  METHODS
  In this cross-sectional study, totally 2388 normotensive older men aged 65-80 years undergoing routine health examinations were enrolled. To eliminate the influence of age on BP, subjects were initially grouped in each age stratum. Then in each age-stratum, subjects were further grouped into low, middle and high-tertile systolic BP (SBP) subgroups. Finally, all the low-tertile subgroups in each age stratum were gathered to form Group-1. Similarly, Group-2 (middle-tertile) and Group-3 (high-tertile) were also created. Metabolic syndrome (MetS) was regarded as having risks for future CVD and diabetes.
  
  
  RESULTS
  Age, waist circumstance (WC), fasting plasma glucose (FPG) and log triglyceride (TG) were independently and significantly correlated with SBP by multiple linear regression analysis. On the other hand, logistic regression showed that Group-3 had significant higher odds ratios (ORs) for having abnormal WC, FPG and TG. In addition, Group-3 presented a 1.55-fold OR (p < 0.001) for having MetS than Group-1.
  
  
  CONCLUSIONS
  In normotensive older men, the risk for having MetS was significantly associated with higher SBP. Primary prevention of hypertension should be stressed.
authors.affiliation: Department of Internal Medicine, Division of Endocrinology and Metabolism, Buddhist Tzu Chi General Hospital, Taipei, Taiwan.
authors.forename: Leay-Kiaw
authors.initials: LK
authors.lastname: Er
authors.forename: Yen-Lin
authors.initials: YL
authors.lastname: Chen
authors.forename: Dee
authors.initials: D
authors.lastname: Pei
authors.forename: Shu Chuen
authors.initials: SC
authors.lastname: Lau
authors.forename: Shi-Wen
authors.initials: SW
authors.lastname: Kuo
authors.forename: Chun-Hsien
authors.initials: CH
authors.lastname: Hsu
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001794:Blood Pressure / Q000502:physiology*; D001795:Blood Pressure Determination; D003430:Cross-Sectional Studies; D006801:Humans; D015994:Incidence; D016014:Linear Models; D008297:Male; D024821:Metabolic Syndrome / Q000175:diagnosis / Q000453:epidemiology*; D016017:Odds Ratio; D013624:Taiwan / Q000453:epidemiology