Chen Y, Rennie D C, Dosman J A
Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario, Canada K1H 8M5, Canada.
Public Health. 2009 Jan;123(1):15-9. doi: 10.1016/j.puhe.2008.06.006. Epub 2008 Nov 30.
To determine the changes in the prevalence of obesity in a rural community between 1977 and 2003.
A multiple cross-sectional study.
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.
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).
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.
确定1977年至2003年间一个农村社区肥胖患病率的变化情况。
多项横断面研究。
分析基于1977年、1983年、1993年和2003年在萨斯喀彻温省洪堡镇对25至59岁成年人进行的四次横断面调查数据。体重指数（BMI）大于或等于30kg/m²的人被视为肥胖。
在研究期间，男性和女性的平均体重均增加了8kg。与年龄较大的年龄组相比，25至39岁成年人的BMI增加幅度更大。男性肥胖患病率从1977年的24%增至2003年的38%，女性从16%增至32%。1993年至2003年的变化比1977年至1993年更为明显，尤其是在较年轻的成年人中。按性别、年龄和吸烟状况标准化到2003年研究人群后，1977年肥胖患病率为16.8%，1983年为22.7%，1993年为24.7%，2003年为34.5%，远高于加拿大全国平均水平（2003年为16%）。
农村成年人肥胖患病率急剧上升，且在较年轻成年人中更为明显。吸烟习惯的改变无法解释这一增长。迫切需要确定并实施有效的干预措施，以减缓甚至扭转这一趋势，特别是在农村人口中。
