Division of Adult and Community Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA.
Int J Obes (Lond). 2011 May;35(5):736-43. doi: 10.1038/ijo.2010.186. Epub 2010 Sep 7.
The United States has experienced a large increase in the prevalence of obesity since the 1970s. Our objective was to describe recent trends in obesity and abdominal obesity among adults in the United States.
Trend study of cross-sectional studies.
We used data from up to 22,872 men and non-pregnant women aged ≥ 20 years from the National Health and Nutrition Examination Survey (NHANES) 1999-2008.
Main outcome measures are mean body mass index and waist circumference, percentages of obesity and abdominal obesity. Obesity was defined as a body mass index ≥ 30 kg m(-2), and abdominal obesity was defined as a waist circumference ≥ 102 cm in men and ≥ 88 cm in women.
In men, the age-adjusted mean body mass index, mean waist circumference, and prevalence of obesity and abdominal obesity were 27.8 kg m(-2), 99.1 cm, and 26.9 and 37.8%, respectively, during 1999-2000 and 28.5 kg m(-2) (P (trend) = 0.001), 100.8 cm (P (trend) = 0.002), and 32.0 (P (trend) = 0.001) and 43.7% (P (trend) = 0.002), respectively, during 2007-2008. In women, the age-adjusted mean body mass index, mean waist circumference, and prevalence of obesity and abdominal obesity were 28.2 kg m(-2), 92.2 cm, and 33.2 and 55.8%, respectively, during 1999-2000 and 28.6 kg m(-2) (P (trend) = 0.181), 94.9 cm (P (trend) = 0.006), and 35.2 (P (trend) = 0.180) and 61.8% (P (trend) = 0.036), respectively, during 2007-2008. Significant linear trends for increasing prevalence of obesity were noted among men with the least and most education.
Between 1999 and 2008, both obesity and abdominal obesity increased in men, and abdominal obesity increased in women.
自 20 世纪 70 年代以来，美国的肥胖患病率大幅上升。我们的目的是描述美国成年人肥胖和腹型肥胖的最新趋势。
横断面研究的趋势研究。
我们使用了来自全国健康和营养检查调查（NHANES）1999-2008 年的最多 22872 名年龄在 20 岁及以上的男性和非孕妇的数据。
主要观察指标为平均体重指数和腰围、肥胖和腹型肥胖的百分比。肥胖定义为体重指数≥30kg/m^2，腹型肥胖定义为男性腰围≥102cm，女性腰围≥88cm。
在男性中，调整年龄后的平均体重指数、平均腰围以及肥胖和腹型肥胖的患病率分别为 1999-2000 年的 27.8kg/m^2、99.1cm、26.9%和 37.8%，2007-2008 年的 28.5kg/m^2（P（趋势）=0.001）、100.8cm（P（趋势）=0.002）、32.0%（P（趋势）=0.001）和 43.7%（P（趋势）=0.002）。在女性中，调整年龄后的平均体重指数、平均腰围以及肥胖和腹型肥胖的患病率分别为 1999-2000 年的 28.2kg/m^2、92.2cm、33.2%和 55.8%，2007-2008 年的 28.6kg/m^2（P（趋势）=0.181）、94.9cm（P（趋势）=0.006）、35.2%（P（趋势）=0.180）和 61.8%（P（趋势）=0.036）。在受教育程度最低和最高的男性中，肥胖的患病率呈显著线性上升趋势。
1999 年至 2008 年间，男性肥胖和腹型肥胖均有所增加，女性腹型肥胖也有所增加。
