title: [Reliability of arterial blood pressure measurement in an arterial hypertension study].
abstract: OBJECTIVE
  To evaluate the relaibility of the blood pressure measurements in an arterial hypertension study.
  
  
  METHODS
  It was evaluated 502 nurse workers of a public hospital. After careful training and selection of the observers for the quality control at the fieldwork, it was analyzed the correlation between the 1st and 2nd measurements, final digit preference and mean systolic (SBP) and diastolic pressure (DBP). 5% of the sample had their measures compared with those checked by an expert.
  
  
  RESULTS
  There was a great confiability intra-observer (96.2% in the SBP and 93.4% in the DBP). The final digit distribution was almost identical. At the 5% sample, there was a strong correlation between them (96.0% in the SBP and 93.9% in the DBP).
  
  
  CONCLUSIONS
  This methodology is feasible in national studies and confers validity to the results.
authors.affiliation: Universidade Federal da Bahia-Salvador.
authors.forename: E M
authors.initials: EM
authors.lastname: Leão de Aquino
authors.forename: L C
authors.initials: LC
authors.lastname: Magalhães
authors.forename: M J
authors.initials: MJ
authors.lastname: Araújo
authors.forename: M C
authors.initials: MC
authors.lastname: Chagas de Almeida
mesh_terms: D001795:Blood Pressure Determination / Q000592:standards*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D007407:Interviews as Topic; D009741:Nursing Staff, Hospital; D011786:Quality Control; D015203:Reproducibility of Results
vernacular_title: Confiabilidade da medida de pressão arterial sangüínea em um estudo de hipertensão arterial.