The impact of obesity on active life expectancy in older American men and women
The impact of obesity on active life expectancy in older American men and women
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DOI：
10.1093/geront/45.4.438
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发表时间：
2005-08-01
期刊：
影响因子：
5.7
通讯作者：
Crimmins, EM
中科院分区：
文献类型：
--
作者：
Reynolds, SL;Saito, Y;Crimmins, EM
目的：本文的目的是评估肥胖对美国老年人寿命和非残疾寿命的影响。设计和方法：利用最年长老年人的资产和健康动态(AHEAD)调查的前3波数据，本文对肥胖和非肥胖老年男性和女性的总预期寿命、活动预期寿命和残疾预期寿命进行了估计。我们使用马尔科夫链内插(IMaCH)方法来估计肥胖和非肥胖老年人在有和没有日常生活能力(ADL)残疾的情况下预期生活的平均年数。结果：我们的研究结果表明，肥胖对70岁及以上成年人的预期寿命影响很小。然而，肥胖者更有可能成为残疾人。这意味着肥胖的老年人寿命更长，其余生中残疾的比例也更高。影响：老年人的肥胖状况在预期寿命方面没有显著差异，这表明在这个年龄段，与肥胖相关的死亡比残疾更令人担忧。鉴于所有年龄段的美国人肥胖率稳步上升，未来美国老年人的伤残率可能会高于预期。为了减少未来老年人群体中的残疾，需要对肥胖的原因和治疗进行更多研究，并对实现和保持减肥的干预措施进行评估。
Purpose: The purpose of this article is to estimate the effect of obesity on both the length of life and length of nondisabled life for older Americans. Design and Methods: Using data from the first 3 waves of the Asset and Health Dynamics Among the Oldest Old (AHEAD) survey, this article develops estimates of total, active, and disabled life expectancy for obese and nonobese older men and women. We used the Interpolation of Markov Chains (IMaCh) method to estimate the average number of years obese and nonobese older persons can expect to live with and without activity of daily living (ADL) disability. Results: Our findings indicate that obesity has little effect on life expectancy in adults aged 70 years and older. However, the obese are more likely to become disabled. This means that obese older adults live both more years and a higher proportion of their remaining lives disabled. Implications: The lack of significant differences in life expectancy by obesity status among the old suggests that obesity-related death is less of a concern than disability in this age range. Given steady increases in obesity among Americans at all ages, future disability rates may be higher than anticipated among older U.S. adults. In order to reduce disability among future cohorts of older adults, more research is needed on the causes and treatment of obesity and evaluations done on interventions to accomplish and maintain weight loss.