White-coat hypertension and normotension in the League of Hypertension of the Hospital das Clínicas, FMUSP: prevalence, clinical and demographic characteristics
To assess the prevalence of white-coat normortension, white-coat hypertension, and white-coat effect. We assessed 670 medical records of patients from the League of Hypertension of the Hospital das Clínicas of the Medical School of the University of S o Paulo. White-coat hypertension (blood pressure...
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Published in | Arquivos brasileiros de cardiologia Vol. 80; no. 2; pp. 117 - 126 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English Portuguese |
Published |
Brazil
01.02.2003
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Subjects | |
Online Access | Get full text |
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Summary: | To assess the prevalence of white-coat normortension, white-coat hypertension, and white-coat effect.
We assessed 670 medical records of patients from the League of Hypertension of the Hospital das Clínicas of the Medical School of the University of S o Paulo. White-coat hypertension (blood pressure at the medical office: mean of 3 measurements with the oscillometric device > or = 140 or > or = 90 mmHg, or both, and ambulatory blood pressure monitoring mean during wakefulness < 135/85) and white-coat normotension (office blood pressure < 140/90 and blood pressure during wakefulness on ambulatory blood pressure monitoring > or = 135/85) were analyzed in 183 patients taking no medication. The white-coat effect (difference between office and ambulatory blood pressure > 20 mmHg for systolic and 10 mmHg for diastolic) was analyzed in 487 patients on treatment, 374 of whom underwent multivariate analysis to identify the variables that better explain the white-coat effect.
Prevalence of white-coat normotension was 12%, prevalence of white-coat hypertension was 20%, and prevalence of the white-coat effect was 27%. A significant correlation (p<0.05) was observed between white-coat hypertension and familial history of hypertension, and between the white-coat effect and sex, severity of the office diastolic blood pressure, and thickness of left ventricular posterior wall.
White-coat hypertension, white-coat normotension, and white-coat effect should be considered in the diagnosis of hypertension. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0066-782X |