生活满意度与痴呆风险：来自韩国老龄化纵向研究的结果。
Satisfaction With Life and Risk of Dementia: Findings From the Korean Longitudinal Study of Aging.
机构信息
College of Medicine, Florida State University, Tallahassee, Florida, USA.
Euromov, University of Montpellier, Montpellier, France.
出版信息
J Gerontol B Psychol Sci Soc Sci. 2022 Oct 6;77(10):1831-1840. doi: 10.1093/geronb/gbac064.
OBJECTIVES
Life satisfaction is increasingly viewed as an asset associated with better general health, but its association with cognitive health and risk of dementia is less examined. We tested the hypothesis that higher life satisfaction would be associated with lower risk of dementia.
METHODS
Participants were a nationally representative sample of adults (n = 8,021; age range: 45-93 years) from the Korean Longitudinal Study of Aging assessed every 2 years for up to 12 years. Multilevel modeling analysis examined whether life satisfaction is associated with cognitive functioning and decline. The primary analysis used Cox regression to examine the association between baseline life satisfaction and risk of incident dementia.
RESULTS
Between-person differences and within-person changes in life satisfaction were associated with cognitive functioning, but life satisfaction was unrelated to the rate of cognitive decline. Higher life satisfaction was also associated with lower risk of dementia, even after accounting for demographic factors, depressive symptoms, cardiovascular and functional risk factors, health behaviors, and social contact.
DISCUSSION
Satisfaction with life may function as a positive psychological resource for maintaining cognitive functioning and protecting against the risk of dementia.
目的
生活满意度越来越被视为与更好的整体健康相关的资产，但它与认知健康和痴呆风险的关系尚未得到充分研究。我们检验了这样一个假设，即更高的生活满意度与痴呆风险降低相关。
方法
参与者是来自韩国老龄化纵向研究的具有全国代表性的成年人样本（n=8021；年龄范围：45-93 岁），每 2 年评估一次，最长可达 12 年。多层次模型分析检验了生活满意度是否与认知功能和下降有关。主要分析采用 Cox 回归检验基线生活满意度与新发痴呆风险之间的关系。
结果
个体间差异和个体内变化的生活满意度与认知功能有关，但生活满意度与认知下降的速度无关。即使考虑到人口统计学因素、抑郁症状、心血管和功能危险因素、健康行为和社会接触，更高的生活满意度也与痴呆风险降低有关。
讨论
对生活的满意度可能是维持认知功能和预防痴呆风险的积极心理资源。
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