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  • Title: Changing prevalence of obesity in a rural community between 1977 and 2003: a multiple cross-sectional study.
    Author: Chen Y, Rennie DC, Dosman JA.
    Journal: Public Health; 2009 Jan; 123(1):15-9. PubMed ID: 19046590.
    Abstract:
    OBJECTIVE: To determine the changes in the prevalence of obesity in a rural community between 1977 and 2003. STUDY DESIGN: A multiple cross-sectional study. METHODS: The analysis was based on data from four cross-sectional surveys of adults aged 25-59 years, conducted in the town of Humboldt, Saskatchewan in 1977, 1983, 1993 and 2003. People with a body mass index (BMI) > or =30 kg/m(2) were considered to be obese. RESULTS: Average body weight increased by 8 kg for both men and women during the study period. The increase in BMI was greater in adults aged 25-39 years compared with older age groups. The prevalence of obesity increased from 24% in 1977 to 38% in 2003 for men, and from 16% to 32% for women. The change was more pronounced from 1993 to 2003 than from 1977 to 1993, especially among younger adults. Standardized to the 2003 study population by sex, age and smoking status, the prevalence of obesity was 16.8% in 1977, 22.7% in 1983, 24.7% in 1993 and 34.5% in 2003, and was much higher than the Canadian national average (16% in 2003). CONCLUSION: There was a dramatic increase in the prevalence of obesity in rural adults, and this was greater in younger adults. Changes in cigarette smoking did not explain the increase. There is an urgent need to identify and implement effective interventions to slow if not reverse the trend, particularly in rural populations.
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