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 Disease epidemiology - Chronic

Jackeline Christiane Pinto Lobato, Pauline Lorena Kale, Luis Guillermo Coca Velarde, Moyses Szklo, Antonio José Leal Costa

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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 1 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.

Original languageEnglish (US)
Article number322
JournalBMC public health
Volume15
Issue number1
DOIs
StatePublished - Apr 2 2015

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Keywords

  • Body mass index
  • Epidemiology
  • Geoffrey Rose
  • Obesity
  • Population approach

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

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