由于肥胖而丧失的生命年数
Kevin R Fontaine1, David T Redden, Chenxi Wang
1Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, Md, USA.
JAMA
|January 9, 2003
概括
肥胖症显著减少了预期寿命,特别是在年轻人中. 这项研究量化了由于超重而丧失的生命年数 (YLL),突出了年龄,种族和性别之间的差异.
科学领域:
- 公共卫生 公共卫生
- 流行病学 流行病学
- 生物统计学 生物统计学
背景情况:
- 关于肥胖危害的公共卫生运动一直无效.
- 了解肥胖对预期寿命的影响至关重要.
研究的目的:
- 为了估计成年人由于超重和肥胖而失去的预期寿命 (YLL).
- 分析身体质量指数 (BMI) 和YLL在整个生命周期之间的关系.
主要方法:
- 利用了来自美国生命表,NHANES III和NHANES I/II后续研究的数据.
- 用定义的BMI类别计算18-85岁的成年人的YLL.
- 为了进行比较,确定了24的参考BMI.
主要成果:
- 在YLL中观察到显著的种族和性别差异.
- 发现白人的最佳BMI范围为23-25,黑人的最佳BMI范围为23-30.
- 较年轻的成年人与老年人相比,由于超重/肥胖导致的年轻人死亡率更高.
结论:
- 肥胖明显地减少了预期寿命,特别是在年轻人群中.
- 严重的肥胖会导致剩余寿命大幅减少.
- 长寿的最佳BMI范围因种族和年龄而异.
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