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- Title
Correlation between mean body mass index in the population and prevalence of obesity in Brazilian capitals: empirical evidence for a population-based approach of obesity.
- Authors
Lobato, Jackeline Christiane Pinto; Kale, Pauline Lorena; Velarde, Luis Guillermo Coca; Szklo, Moyses; Costa, Antonio José Leal
- Abstract
Background: The purpose of this study was to investigate the association between mean body mass index (BMI) and prevalence of obesity in adult populations living in Brazilian State capitals. Methods: An ecological study was conducted, using data from the National Household Budget Survey conducted in July 2002 through June 2003, including a representative sample of 48.470 households. Pearson's correlation and linear regression coefficients were estimated in order to define the relationships of mean BMI and sex-specific, age standardized obesity prevalence (BMI ⩾ 30.0 kg/m2) in adults aged 20 to 59 years. Results: Stronger correlations between BMI and prevalence of obesity were observed in women (r = 0.9; p < 0.001) than in men (r = 0.6; p = 0.001) in all analyzes. A reduction of one unit in mean BMI predicted a decline in the prevalence of obesity of about 4.0% (95% CI: 1.7 - 6.3) in men, and 3.4% (95% CI: 2.6 - 4.3) in women. Conclusion: We found a correlation between BMI and prevalence of obesity, particularly among women, suggesting that population-based strategies would be effective to reduce the prevalence of obesity in adult populations living in Brazilian state capitals.
- Subjects
BRAZIL; STATISTICAL correlation; OBESITY; BODY mass index; DISEASE prevalence; POPULATION health; PUBLIC health
- Publication
BMC Public Health, 2015, Vol 15, Issue 1, p1
- ISSN
1471-2458
- Publication type
Article
- DOI
10.1186/s12889-015-1637-1