Daily vitality fluctuations in older adults with depressive symptoms: A multilevel location-scale model

Dawoon Jung, Gihun Jin, Juhee Choi,Soohyun Park,Kiho Park,Dong Gi Seo,Kee-Hong Choi

Journal of Psychiatric Research(2024)

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摘要
Background Examining the daily experiences of older adults with depression facilitates the development and application of personalized effective treatments for them. In previous clinical research on depression, traditional mean-based approaches have mainly been employed. However, the within-person residual variance as a random effect provides greater insight into the heterogeneity of daily experiences among geriatric samples. Objective: This study aimed to examine the relationship between depression and daily vitality in older adults. Specifically, it focused on the mean and residual variance of daily vitality measured by the Ecological Momentary Assessment (EMA). Methods Data from 64 older adults aged 65 years or more, who participated in community welfare centers or retirees’ associations, were used. Daily vitality was examined using EMA surveys for seven consecutive days (four random surveys per day). The data were analyzed using a location-scale model. Results The intraclass correlation computed from the empty model for the EMA data was 0.488, indicating significant variances in daily vitality across time between individuals. Older adults with higher levels of depressive symptoms showed low mean levels of daily vitality and a large log-residual variance of daily vitality. Conclusions The findings from the current study suggest that individuals experiencing depression not only exhibit low vitality in their daily lives but also struggle to maintain stable levels of vitality in their lives. These insights could contribute to the facilitation and advancement of personalized interventions tailored for older adults.
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关键词
Depression,Older adults,Ecological momentary assessment,Daily vitality,Residual variance
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