Differences in Depression Predictors between Young-old (65-74) and Old- old (75+) A dults: F ocus o n Functional S tatus, Digital Literacy, Social Activities, and Life Satisfaction

Objective : This study aimed to compare predictors of depression between young-old adults (aged 65-74) and old-old adults (aged 75 and older), focusing on functional status, digital literacy, participation in social activities, and subjective satisfaction, and to identify the need for age-specific mental health management strategies. Methods : This study utilized raw data from the 2023 Korean National Survey on Older Adults. A total of 3,385 young-old and 2,015 old-old adults were included. Variables such as depression, functional status (ADL, IADL), digital literacy, social activity participation, and subjective satisfaction were analyzed. Logistic regression analysis was conducted separately for each age group. Results : In both groups, lower instrumental activities of daily living (IADL) scores and lower satisfaction with health and overall life were common predictors of depression. Among the young-old adults, kiosk usage ability and senior center participation reduced the risk of depression, whereas chewing difficulties increased the risk. Among the old-old adults, satisfaction with economic status and spousal relationship served as protective factors, while mobility limitations and experience of watching videos were associated with higher depression risk. Conclusion : There were significant differences in predictors of depression between young-old and old-old adults. Age-specific strategies are required for effective depression prevention and management among older adults. For the young-old, promoting social participation and enhancing practical digital skills are essential, while for the old-old, strengthening economic and emotional support and maintaining mobility are crucial.