title: Patients' perceptions of changes in their blood pressure.
abstract: OBJECTIVE
  (1) To investigate patients' experience of changes in their blood pressure (BP) in an every day setting and the accuracy of patients' predictions; and (2) to examine what influences patients' belief that they can tell when their BP is up.
  
  
  METHODS
  A total of 102 hypertensive patients were recruited sequentially as they presented for routine BP checks. The setting was an inner city general practice.
  
  
  METHODS
  Patients attended for BP checks on a weekly basis. Before each check they were asked whether they thought their BP was higher, lower or the same as usual. Subjects were classified as predictors if they thought they could tell when their BP was up. On completing their series of BP checks each subject completed symptom and Hospital Anxiety and Depression questionnaires.
  
  
  METHODS
  Accuracy of BP predictions, BP levels and variability, number of symptoms reported and anxiety level.
  
  
  RESULTS
  One hundred and two hypertensive patients entered the study of whom 51 patients were predictors. The majority (86%) of predictors could not accurately predict their BP. There were no significant differences in either BP or variability between predictors and non-predictors. Predictors were significantly more anxious and reported more symptoms than non-predictors.
  
  
  CONCLUSIONS
  For the majority of predictors there is no significant relationship between predictions of BP and clinical measurements. Predictor status is associated with the reporting of more symptoms and higher levels of anxiety. Doctors should counsel patients against using subjective BP assessments to guide their use of antihypertensive medication.
authors.affiliation: Department of General Practice, UMDS, Guy's Hospital, London, UK.
authors.forename: P
authors.initials: P
authors.lastname: Cantillon
authors.forename: M
authors.initials: M
authors.lastname: Morgan
authors.forename: R
authors.initials: R
authors.lastname: Dundas
authors.forename: J
authors.initials: J
authors.lastname: Simpson
authors.forename: J
authors.initials: J
authors.lastname: Bartholomew
authors.forename: A
authors.initials: A
authors.lastname: Shaw
mesh_terms: D000328:Adult; D000368:Aged; D001795:Blood Pressure Determination; D018660:Blood Pressure Monitoring, Ambulatory; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012044:Regression Analysis; D015203:Reproducibility of Results; D012649:Self Concept; D011795:Surveys and Questionnaires