Kruger Judy, Ham Sandra A, Prohaska Thomas R
Division of Nutrition and Physical Activity, Centers for Disease Control and Prevention, 4770 Buford Hwy NE, Mail Stop K-46, Atlanta, GA 30341-3717, USA.
Prev Chronic Dis. 2009 Jan;6(1):A14. Epub 2008 Dec 15.
Obesity is associated with coronary heart disease, stroke, certain cancers, hypertension, and type 2 diabetes. Concern about obesity among older adults is growing, and research to examine behaviors associated with risk for increased weight in this population is needed. We examined differences by sex in behaviors associated with overweight and obesity among older adults (aged > or =50 years).
We analyzed data from the 2005 National Health Interview Survey using logistic regression to predict the likelihood of overweight (body mass index [BMI], 25.0-29.9 kg/m2) and obesity (BMI > or =30.0 kg/m2) relative to healthy weight (BMI, 18.5-24.9 kg/m2) among older adults. We used self-reported weights and heights. Correlates were risk behaviors for chronic disease (smoking status, alcohol intake, consumption of fruits and vegetables, leisure-time physical activity, walking for leisure, walking for transportation, and strength training).
Among older men, the prevalence of overweight was 46.3%, and the prevalence of obesity was 25.1%. Among older women, the prevalence of overweight was 33.4%, and the prevalence of obesity was 28.8%. In adjusted logistic regression models, sex differences were observed in the significance of most risk factors for overweight and obesity. Men who were occasional, light, or moderate drinkers were 28% more likely to be obese than men who were nondrinkers; women who were heavy drinkers were 55% less likely to be obese than women who were nondrinkers. Compared with men and women who were regularly active during leisure time, inactive men were 39% more likely to be obese, and inactive women were 28% more likely to be obese.
Several risk behaviors for chronic disease appear to be associated with overweight and obesity among older adults. Modification of these behaviors has the potential to reduce weight.
肥胖与冠心病、中风、某些癌症、高血压和2型糖尿病有关。老年人对肥胖的担忧日益增加，因此需要开展研究来调查该人群中与体重增加风险相关的行为。我们研究了老年人（年龄≥50岁）中超重和肥胖相关行为的性别差异。
我们分析了2005年全国健康访谈调查的数据，使用逻辑回归来预测老年人相对于健康体重（体重指数[BMI]，18.5 - 24.9kg/m²）超重（BMI，25.0 - 29.9kg/m²）和肥胖（BMI≥30.0kg/m²）的可能性。我们使用自我报告的体重和身高。相关因素为慢性病的风险行为（吸烟状况、饮酒量、水果和蔬菜摄入量、休闲时间体力活动、休闲散步、步行外出、力量训练）。
老年男性中超重患病率为46.3%，肥胖患病率为25.1%。老年女性中超重患病率为33.4%，肥胖患病率为28.8%。在调整后的逻辑回归模型中，超重和肥胖的大多数风险因素的显著性存在性别差异。偶尔、少量或中度饮酒的男性比不饮酒的男性肥胖的可能性高28%；重度饮酒的女性比不饮酒的女性肥胖的可能性低55%。与休闲时间经常运动的男性和女性相比，不运动的男性肥胖的可能性高39%，不运动的女性肥胖的可能性高28%。
几种慢性病的风险行为似乎与老年人的超重和肥胖有关。改变这些行为有可能减轻体重。
