title: [Prevalence of white-coat hypertension and masked hypertension in the general population, through home blood pressure measurement].
abstract: OBJECTIVE
  To determine the prevalence of white-coat hypertension (WCH) and masked hypertension (MH) in the general population, by means of home blood pressure measurement (HBPM).
  
  
  METHODS
  Cross-sectional, descriptive study.
  
  
  METHODS
  Four primary care centres.
  
  
  METHODS
  A sample of 1400 individuals over 18 years old, selected from the Municipal Register of Inhabitants (Huelva, Spain) and randomised and stratified by age and gender.
  
  
  METHODS
  Two blood pressure (BP) measurements in clinic (CBP) and 12 measurements in a week of BP by HBPM were performed (OMRON 705-CP). Pressure was seen as normal when CBP means were <140/90 mm Hg and HBPM was <135/85 mm Hg. WCH was defined as when CBP was >140/90 mm Hg and HBPM <135/85 mm Hg, and hypertension when CBP was >140 mm Hg and HBPM >135/85 mm Hg or patients were in treatment for hypertension. MH was when CBP was <140/90 mm Hg and at home was >135 mm Hg and/or 85 mm Hg.
  
  
  RESULTS
  A total of 1153 individuals (82.35% of the sample) with mean age of 45.4 (SD, 16.1) were included: 560 men and 593 women. The prevalence of MH was 8.9% (CI+/-1.6) in the general population and 9.8% (CI+/-3.2) in individuals with hypertension. WCH prevalence was 3.6% (CI+/-1.05) overall and 12.8% (CI+/-3.6) in hypertense patients, with its prevalence increasing steadily as age groups rose (P = .001).
  
  
  CONCLUSIONS
  The prevalence of WCH in the general population is low, whereas the prevalence of MH is high.
authors.affiliation: Centro de Salud La Orden, Huelva, España. emarquezc@papps.org
authors.forename: Emilio
authors.initials: E
authors.lastname: Márquez Contreras
authors.forename: José Joaquín
authors.initials: JJ
authors.lastname: Casado Martínez
authors.forename: Jesús
authors.initials: J
authors.lastname: Pardo Alvarez
authors.forename: Ignacio
authors.initials: I
authors.lastname: Vázquez
authors.forename: Begoña
authors.initials: B
authors.lastname: Guevara
authors.forename: José
authors.initials: J
authors.lastname: Rodríguez
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001795:Blood Pressure Determination / Q000379:methods*; D018660:Blood Pressure Monitoring, Ambulatory; D015924:Blood Pressure Monitors; D003430:Cross-Sectional Studies; D003627:Data Interpretation, Statistical; D005260:Female; D006801:Humans; D006973:Hypertension / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology*; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011320:Primary Health Care; D012737:Sex Factors; D013030:Spain / Q000453:epidemiology