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Rev Saude Publica. 2004 Oct;38(5):637-42. Epub 2004 Oct 18.

[Validity of self-reported hypertension and its determinants (the Bambuí study)].

[Article in Portuguese]

Author information

1
Núcleo de Estudos em Saúde Pública e Envelhecimento, Fundação Oswaldo Cruz, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil. lima-costa@cpqrr.fiocruz.br

Abstract

OBJECTIVE:

Assessing the validity of self-reported hypertension and its determinants among adults living in the community was the objective of this study.

METHODS:

A simple random sample of residents in the city of Bambuí, State of Minas Gerais, Brazil aged >18 years was selected. Three blood pressure measurements were performed in 970 inhabitants. Sensitivity, specificity as well as positive and negative predictive values of self-reported hypertension were assessed in relation to hypertension (mean blood pressure >90 or >140 mm Hg and/or present use of anti-hypertensive drugs).

RESULTS:

Sensibility and specificity of self-reported hypertension were 72.1% (95% CI: 69.3-75.0) and 86.4% (95% CI: 84.3-88.6), respectively. Its prevalence was 27.2% (95% CI: 24.4-30.1), being reasonably similar to the prevalence of hypertension (23.3%; 95% CI: 20.7-26.1%). The validity of self-reported hypertension was higher among women, among individuals aged 40-59 and > or =60 years, among those who visited a doctor more recently (< two years) and among those with higher body mass index (>25 kg/m2).

CONCLUSIONS:

The results of this study show that self-reported hypertension is an appropriate indicator of hypertension prevalence, even in a population not living in a large urban center.

PMID:
15499433
DOI:
/S0034-89102004000500004
[Indexed for MEDLINE]
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