title: [Demographic factors and comorbidity associated to prehypertension].
abstract: BACKGROUND
  prehypertension is the category established in JNC-7, which designates the individuals that present diastolic blood pressure of 80-89 mm Hg and systolic blood pressure of 120-139 mm Hg, and it is associated to high rates of cardiovascular disease. The purpose of the study was to identify prevalence rates and their correlation with sociodemographic factors and comorbidity in a sample of a population of Veracruz, Mexico.
  
  
  METHODS
  a cross-sectional and representative survey was chosen by means of probability sampling. Sociodemographic factors, lifestyle and anthropometric characteristics were assessed. Odds ratios and 95 % confidence intervals were obtained.
  
  
  RESULTS
  the prehypertension prevalence found was 33.8 %, with an average age of 40.9 ± 14.2 years in prehypertensive subjects, and 50.6 ± 12.7 in hypertension subjects (p < 0.05). In relation with prehypertension, males presented a 1.48 (1.18-1.86) OR. Also, those who had more than 40 years had an OR of 1.9 (1.51-2.38); the ones with basic schooling, an OR of 1.73 (1.38-2.17); subjects with hyperglycemia, OR 3.0 (1.5-3.75); with overweight, OR 1.41 (1.01-1.68); and those with other comorbidities an OR of 1.61 (1.09-2.36).
  
  
  CONCLUSIONS
  a high prevalence of prehypertension was found in the sample, and it was associated to male gender subjects, aged above 40 years, with basic schooling and relevant comorbidities, such as diabetes and cardiovascular disease.
authors.affiliation: Dirección de Educación e Investigación en Salud, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social (IMSS), Distrito Federal, México, Mexico. achavezn@gmail.com.
authors.forename: Adolfo
authors.initials: A
authors.lastname: Chávez-Negrete
authors.forename: Félix Guillermo
authors.initials: FG
authors.lastname: Márquez-Celedonio
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Soler-Huerta
authors.forename: Sonia Irma
authors.initials: SI
authors.lastname: Rojas-Carrera
authors.forename: Mario
authors.initials: M
authors.lastname: González-Santes
authors.forename: Aída Verónica
authors.initials: AV
authors.lastname: Blanco-Cornejo
authors.forename: Magdalena
authors.initials: M
authors.lastname: Rojas-Uribe
authors.forename: Obdulia
authors.initials: O
authors.lastname: Texon-Fernández
mesh_terms: D000328:Adult; D015897:Comorbidity; D003430:Cross-Sectional Studies; D003710:Demography; D005260:Female; D006801:Humans; D008297:Male; D008800:Mexico / Q000453:epidemiology; D058246:Prehypertension / Q000453:epidemiology* / Q000209:etiology; D015995:Prevalence
keywords: demography of Mexico; hypertension; prehypertension