Contribution of obesity to international differences in life expectancy.
Contribution of obesity to international differences in life expectancy.
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DOI：
10.2105/ajph.2011.300219
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发表时间：
2011-11
影响因子：
12.7
通讯作者：
Stokes A
中科院分区：
文献类型：
--
作者：
Preston SH;Stokes A
美国是肥胖患病率最高的国家，也是高收入国家中预期寿命最低的国家之一。我们研究了这两种现象之间的关系。我们按国家、年龄和性别估计了肥胖导致的死亡比例，并在剔除这些死亡后重新估计了生命表。为了考虑到肥胖风险可能长期下降，我们采用了最近一段时期的替代风险。在我们的基线分析中，2006年美国50岁时，肥胖使女性预期寿命减少1.54年（95%可信区间[CI]=1.37, 1.93），男性预期寿命减少1.85年（95% CI=1.62, 2.10）。与预期寿命较高的国家相比，消除肥胖的影响使美国女性的缺口减少了42% (95% CI= 36,48)，男性减少了67% （95% CI= 57,76）。使用最近记录的风险数据，我们估计肥胖的差异仍然占缺口的五分之一到三分之一。肥胖在美国的高流行率是其在长寿方面排名不佳的主要原因。
The United States has the highest prevalence of obesity and one of the lowest life expectancies among high-income countries. We investigated the relationship between these 2 phenomena. We estimated the fraction of deaths attributable to obesity by country, age, and sex and reestimated life tables after removing these deaths. To allow for a possible secular decline in obesity risks, we employed alternative risks from a more recent period. In our baseline analysis, obesity reduced US life expectancy at age 50 years in 2006 by 1.54 years (95% confidence interval [CI]=1.37, 1.93) for women and by 1.85 years (95% CI=1.62, 2.10) for men. Removing the effects of obesity reduced the US shortfall by 42% (95% CI=36, 48) for women and 67% (95% CI=57, 76) for men, relative to countries with higher life expectancies. Using more recently recorded risk data, we estimated that differences in obesity still accounted for a fifth to a third of the shortfall. The high prevalence of obesity in the United States contributes substantially to its poor international ranking in longevity.