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Eur J Clin Nutr. 2000 Apr;54(4):356-60.

Risk factors for hypertension in obese women. The role of weight cycling.

Author information

1
Clinica Medica, Dipartimento di Medicina Interna e Scienze dell'Invecchiamento, Chieti University, Chieti, Italy.

Abstract

OBJECTIVE:

To study significant factors associated with the risk of hypertension among obese women, with and without a history of weight cycling (WC).

DESIGN:

Case-control study.

SETTING:

Obesity Clinic of Chieti University, Italy.

SUBJECTS:

A group of 258 obese women aged 25-64 y (103 cases with hypertension and 155 controls) were recruited. All obese subjects had the same clinical characteristics, were without a family history for hypertension, were non-smokers, had normal lipidemic profiles and normal glucose tolerance, were not taking any medication and were otherwise healthy.

INTERVENTION:

In the weight cycling women, the history of WC was established on the basis of at least five weight losses in the previous 5 y due to dieting, with a weight loss of at least 4.5 kg per cycle. A logistic regression model adjusted for confounding variables such as waist-to-hip ratio (WHR) and weight cycling history parameters was used and the odds ratio (OR) with 95% confidence intervals was calculated.

RESULTS:

The risk of hypertension increases in subjects with larger WHR (OR 7.8; 95% CI 3.4-17.9) and with a positive history for WC (OR 4.1; 95% CI 2.4-6.9). Further, in obese patients with WC, the weight cycling index and the sum of the weight regained are also important risk factors for hypertension.

CONCLUSIONS:

These findings could support the hypothesis that it is the combined exposure of central-type obesity and WC that strongly raises the risk of hypertension.

SPONSORSHIP:

This work has been financially supported by a grant of Ministero dell'Università e della Ricerca Scientifica e Tecnologica.

PMID:
10745288
DOI:
10.1038/sj.ejcn.1600963
[Indexed for MEDLINE]
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