Yang Fang, Gu Danan, Mitnitski Arnold
Department of Social Work, School of Sociology and Political Science, Shanghai University, A501, #99 Shangda Road, Baoshan District, Shanghai 200444, China.
United Nations Population Division, Two UN Plaza, DC2-1910, New York, NY, 20012, USA.
Arch Gerontol Geriatr. 2016 Nov-Dec;67:68-73. doi: 10.1016/j.archger.2016.07.001. Epub 2016 Jul 12.
This study aims to examine the relationship between frailty and life satisfaction and the roles of age and social vulnerability underlying the links in Chinese older adults.
Using a cross-sectional sample of 1970 adults aged 65 and older in 2013 in Shanghai, we employed regression analyses to investigate the interaction between frailty and age on life satisfaction in the whole sample and in different social vulnerability groups. Life satisfaction was measured using a sum score of satisfaction with thirteen domains. Using a cumulative deficit approach, frailty was constructed from fifty-two variables and social vulnerability was derived from thirty-five variables.
Frailty was negatively associated with life satisfaction. The interaction between frailty and age was significant for life satisfaction, such that the negative association between frailty and life satisfaction was stronger among the young-old aged 65-79 than among the old-old aged 80+. Moreover, frailty's stronger association with life satisfaction in the young-old than in the old-old was only found among those in the 2nd and 3rd tertiles of social vulnerability, but not for those in the 1st tertile of social vulnerability.
Relation between frailty and life satisfaction likely weakens with age. A higher level of social vulnerability enlarges the negative impact of frailty on life satisfaction with a greater extent in the young-old.
本研究旨在探讨中国老年人中衰弱与生活满意度之间的关系，以及年龄和社会脆弱性在二者联系中所起的作用。
采用2013年上海市1970名65岁及以上成年人的横断面样本，运用回归分析研究在整个样本以及不同社会脆弱性群体中，衰弱与年龄对生活满意度的交互作用。生活满意度通过对13个领域的满意度得分总和来衡量。采用累积缺陷法，从52个变量构建衰弱指标，从35个变量得出社会脆弱性指标。
衰弱与生活满意度呈负相关。衰弱与年龄的交互作用对生活满意度有显著影响，即65 - 79岁的年轻老年人中，衰弱与生活满意度之间的负相关比80岁及以上的高龄老年人更强。此外，仅在社会脆弱性处于第二和第三三分位数的人群中发现，年轻老年人中衰弱与生活满意度的关联比高龄老年人更强，而在社会脆弱性处于第一三分位数的人群中未发现此现象。
衰弱与生活满意度之间的关系可能会随着年龄增长而减弱。较高水平的社会脆弱性在年轻老年人中更大程度地扩大了衰弱对生活满意度的负面影响。
