title: Clinical significance of differences between home and clinic systolic blood pressure readings in patients with hypertension.
abstract: OBJECTIVE
  To elucidate the clinical significance of differences between home- and clinic-measured systolic blood pressure (SBP) in patients with treated hypertension, and to assess the correlations between SBPs and arterial stiffness.
  
  
  METHODS
  Patients with treated hypertension measured their blood pressure (BP) themselves once, at home, in the morning (<1 h after awakening) using an automated oscillometric sphygmomanometer. Clinic BP was measured once, at an outpatient clinic on the same day, using a similar instrument. Arterial stiffness was measured by cardio-ankle vascular index (CAVI). Differences between home and clinic SBPs, and the correlations between CAVI and home SBP, clinic SBP, and the difference between home and clinic SBPs, were analysed.
  
  
  RESULTS
  Seventy-six patients with treated hypertension (mean age, 71 years) were evaluated. There was no statistically significant difference between home and clinic SBP (mean ± SD 132 ± 14 and 133 ± 16 mmHg, respectively). Home SBP showed no correlation with CAVI, whereas clinic SBP showed a weak correlation. The difference between the home and clinic SBP showed a stronger correlation with CAVI, and was statistically significant.
  
  
  CONCLUSIONS
  The difference between home- and clinic-measured SBP showed a better correlation with arterial stiffness than did either home or clinic SBP alone.
authors.affiliation: Department of Integrated Medicine, Kagawa University, Kagawa, Japan. masugata@med.kagawa-u.ac.jp
authors.forename: Hisashi
authors.initials: H
authors.lastname: Masugata
authors.forename: Shoichi
authors.initials: S
authors.lastname: Senda
authors.forename: Michio
authors.initials: M
authors.lastname: Inukai
authors.forename: Takashi
authors.initials: T
authors.lastname: Himoto
authors.forename: Naohisa
authors.initials: N
authors.lastname: Hosomi
authors.forename: Koji
authors.initials: K
authors.lastname: Murao
authors.forename: Hiroki
authors.initials: H
authors.lastname: Okada
authors.forename: Fuminori
authors.initials: F
authors.lastname: Goda
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D001794:Blood Pressure; D018660:Blood Pressure Monitoring, Ambulatory / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000175:diagnosis* / Q000503:physiopathology; D007297:Inpatients; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D010045:Outpatients; D013599:Systole; D059289:Vascular Stiffness
keywords: CAVI; Hypertension; arterial stiffness; clinic blood pressure; home blood pressure; systolic blood pressure