Gilmore J
Health Statistics Division, Statistics Canada, Ottawa K1A 0T6.
Health Rep. 1999 Summer;11(1):31-43(Eng); 33-47(Fre).
This article describes the prevalence of the four international body mass index (BMI) categories--underweight (18.5 or less), acceptable weight (18.6 to 24.9), overweight (25 to 29.9) and obese (30 or more)--by selected socio-demographic and lifestyle characteristics. It also examines the association between BMI and selected health problems.
The data are from the household component of the 1996/97 National Population Health Survey, conducted by Statistics Canada. Results are based on a sample of 50,347 respondents aged 20 to 64.
Prevalence estimates of BMI categories were calculated. Multivariate analyses were used to examine associations between BMI and various health conditions by smoking status, while controlling for age and sex.
In 1996/97, about half of Canadian adults were in the acceptable weight range; 34% were overweight; 12%, obese; and 2%, underweight. Being overweight or obese was associated with asthma, arthritis, back problems, high blood pressure, diabetes and thyroid disorders, although this varied with smoking status. Underweight smokers had high odds of reporting cancer, bowel disorders, ulcers, and migraine.
本文按选定的社会人口统计学和生活方式特征描述了四个国际体重指数（BMI）类别——体重过轻（18.5及以下）、正常体重（18.6至24.9）、超重（25至29.9）和肥胖（30及以上）——的流行情况。它还研究了BMI与选定健康问题之间的关联。
数据来自加拿大统计局进行的1996/97年全国人口健康调查的家庭部分。结果基于50347名年龄在20至64岁之间的受访者样本。
计算了BMI类别的患病率估计值。在控制年龄和性别的同时，采用多变量分析按吸烟状况研究BMI与各种健康状况之间的关联。
在1996/97年，约一半的加拿大成年人处于正常体重范围；34%超重；12%肥胖；2%体重过轻。超重或肥胖与哮喘、关节炎、背部问题、高血压、糖尿病和甲状腺疾病有关，不过这因吸烟状况而异。体重过轻的吸烟者报告患癌症、肠道疾病、溃疡和偏头痛的几率很高。
