Prevalence of physical activity and obesity in US counties, 2001-2011: a road map for action
Prevalence of physical activity and obesity in US counties, 2001-2011: a road map for action
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DOI：
10.1186/1478-7954-11-7
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发表时间：
2013-07-10
影响因子：
3.3
通讯作者：
Mokdad, Ali H.
中科院分区：
文献类型：
--
作者：
Dwyer-Lindgren, Laura;Freedman, Greg;Mokdad, Ali H.
背景资料：肥胖和缺乏体力活动与几种慢性疾病，增加医疗费用，过早death.Methods：我们使用的行为风险因素监测系统（BRFSS），一个国家为基础的随机数字电话调查，涵盖了美国的大多数县，和国家健康和营养检查调查（NHANES），美国平民非制度化人口的全国代表性样本。2000年至2011年，约有370万20岁或20岁以上的成年人参加了BRFSS，1999年至2010年，30 000名20岁或20岁以上的成年人参加了NHANES。我们根据BRFSS中自我报告的体重和身高计算体重指数（BMI），并使用NHANES调整自我报告的偏差。我们根据BRFSS中的自我报告数据计算了自我报告的身体活动-任何身体活动和符合推荐水平的身体活动。结果：2001 - 2011年，我国各县的肥胖和体力活动患病率呈逐年上升趋势。男子的水平一般高于妇女，但妇女的增幅大于男子。肯塔基州、佛罗里达、格鲁吉亚和加州的县报告的涨幅最大。在同一时期，几乎所有县的活动水平的增加都与肥胖症的增加相匹配。在美国各县，体育活动水平与肥胖之间的相关性很低。从2001年到2009年，在控制贫困、失业、每10万人口医生数量、农村人口比例和基线肥胖水平的变化后，体育活动患病率每增加1个百分点，肥胖患病率就降低0.11个百分点。我们的研究表明，在美国县级水平上，增加身体活动对肥胖患病率的影响很小。事实上，身体活动水平的提高将对美国人的健康产生积极的独立影响，因为它将减少心血管疾病和糖尿病的负担。可能需要其他改变，如减少热量摄入，以遏制肥胖流行及其负担。
Background: Obesity and physical inactivity are associated with several chronic conditions, increased medical care costs, and premature death.Methods: We used the Behavioral Risk Factor Surveillance System (BRFSS), a state-based random-digit telephone survey that covers the majority of United States counties, and the National Health and Nutrition Examination Survey (NHANES), a nationally representative sample of the US civilian noninstitutionalized population. About 3.7 million adults aged 20 years or older participated in the BRFSS from 2000 to 2011, and 30,000 adults aged 20 or older participated in NHANES from 1999 to 2010. We calculated body mass index (BMI) from self-reported weight and height in the BRFSS and adjusted for self-reporting bias using NHANES. We calculated self-reported physical activity-both any physical activity and physical activity meeting recommended levels-from self-reported data in the BRFSS. We used validated small area estimation methods to generate estimates of obesity and physical activity prevalence for each county annually for 2001 to 2011.Results: Our results showed an increase in the prevalence of sufficient physical activity from 2001 to 2009. Levels were generally higher in men than in women, but increases were greater in women than men. Counties in Kentucky, Florida, Georgia, and California reported the largest gains. This increase in level of activity was matched by an increase in obesity in almost all counties during the same time period. There was a low correlation between level of physical activity and obesity in US counties. From 2001 to 2009, controlling for changes in poverty, unemployment, number of doctors per 100,000 population, percent rural, and baseline levels of obesity, for every 1 percentage point increase in physical activity prevalence, obesity prevalence was 0.11 percentage points lower.Conclusions: Our study showed that increased physical activity alone has a small impact on obesity prevalence at the county level in the US. Indeed, the rise in physical activity levels will have a positive independent impact on the health of Americans as it will reduce the burden of cardiovascular diseases and diabetes. Other changes such as reduction in caloric intake are likely needed to curb the obesity epidemic and its burden.