Blood pressure and body mass index in lean rural and semi-urban subjects in West Africa.
J Hypertens
; 23(9): 1645-51, 2005 Sep.
Article
em En
| MEDLINE
| ID: mdl-16093908
ABSTRACT
BACKGROUND:
Blood pressure (BP) is positively related to body mass index (BMI) in persons of both Caucasian and African origin, but the precise nature of the relationship is unclear.OBJECTIVE:
To study the relationship between BP and BMI in a lean African population.DESIGN:
A community-based cross-sectional study.METHODS:
The BMI and BP were measured in 362 men and 592 women aged 40-75 years living in Ashanti, Ghana. In total, 498 lived in semi-urban areas and 456 in rural villages.RESULTS:
The BMI was higher among semi-urban women [23.1 kg/m (95% confidence interval (CI), 22.5 to 23.6)] than semi-urban men [20.9 kg/m (95% CI, 20.6 to 21.5)], rural men [19.5 kg/m (95% CI, 19.1 to 19.9)] and rural women [19.9 kg/m (95% CI, 19.5 to 20.3)]. For systolic BP in women older than 52 years and in semi-urban women, the relationship was non-linear. The slope of the line below the change point ("knot") was greater than that above it. There was no evidence of non-linearity in men. For diastolic BP only younger women had a significant "knot" point at 18 kg/m. Again, the slope of the line below the "knot" was greater than that above it. In men, however, there was also evidence of a "knot" in younger and rural men, with the slope of the line below the "knot" being less that that above it (unlike in women).CONCLUSIONS:
The relationship between BP and BMI is not linear, and is possibly sigmoid, but this may vary between subgroups.
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Base de dados:
MEDLINE
Assunto principal:
População Rural
/
Somatotipos
/
População Suburbana
/
Pressão Sanguínea
/
Índice de Massa Corporal
Tipo de estudo:
Observational_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
Africa
Idioma:
En
Revista:
J Hypertens
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Reino Unido