Effects of cognitive reserve on cognitive frailty among older adults: A population‐based prospective cohort study

作者：Yanyan Li, Ruby Yu, Huaxin Si, Qinqin Liu, Yanhui Bian, Jiaqi Yu, Cuili Wang · 发表于：Geriatrics and gerontology international/Geriatrics & gerontology international · 年份：2024 · DOI：10.1111/ggi.14855 · 被引用次数：12 · 研究领域：Frailty in Older Adults、Dementia and Cognitive Impairment Research、Older Adults Driving Studies

AIM: We investigated the effect of lifespan cognitive reserve and its components on cognitive frailty among older adults. METHODS: A total of 4922 participants aged ≥65 years were recruited in 2008 and were followed up in 2011 from the Chinese Longitudinal Healthy Longevity Survey. Cognitive frailty was determined through the simultaneous presence of physical frailty (pre-frailty or frailty) and mild cognitive impairment, excluding concurrent dementia. The assessment of physical frailty and mild cognitive impairment was based on the Fatigue, Resistence, Ambulation, Illness, Loss of weight (FRAIL) (Fatigue, Resistence, Ambulation, Illness, Loss) and Mini-Mental State Examination scale, respectively. The lifespan cognitive reserve consisted of education attainment, occupational complexity and later-life leisure activities. We used logistic regression models to estimate the risk of cognitive frailty associated with the lifespan cognitive reserve and its components. RESULTS: A higher level of lifespan cognitive reserve, higher educational attainment or leisure activities engagement, but not occupational complexity, were associated with lower risk of incident cognitive frailty. Furthermore, cognitive, social and physical activities were associated with lower risk of incident cognitive frailty. CONCLUSION: Cognitive reserve, particularly educational attainment and leisure activities, can protect from cognitive frailty. This implicates that individuals should accumulate cognitive re...