• LinglingAdvanced Preventive Medical Sciences, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan; Center for Preventive Medical Sciences, Chiba University, Chiba, Japan., Taishi Tsuji, Kazushige Ide, and Katsunori Kondo.
• Advanced Preventive Medical Sciences, Graduate School of Medical and Pharmaceutical Sciences, Chiba University, Chiba, Japan; Center for Preventive Medical Sciences, Chiba University, Chiba, Japan.
• Prev Med. 2023 Aug 1; 173: 107573107573.

AbstractParticipating in group leisure activities may lower the risk of dementia compared with doing leisure activities alone. However, only some studies have examined the differences. In this study, we sought to determine whether the incidence of dementia risk differs according to the implementation status of leisure activities (participation in a group or alone). The association between the implementation status of leisure activities and the risk of dementia was examined using Cox proportional hazards models in the 6-year (2010-2016) cohort data of 50,935 participants (23,533 males and 27,402 females) aged 65 years or older of the Japan Gerontological Evaluation Study. Over six years of follow-up, 5395 respondents (10.6%) developed dementia. After adjusting for potential confounders, such as depression and social support, the implementation status of leisure activities was associated with a lower dementia risk in participants who engaged in group leisure activities (hazard ratio [HR], 0.79; 95% confidence interval [CI], 0.73-0.85) and a higher dementia risk in those without leisure activity (HR, 1.30; 95% CI, 1.22-1.39), in comparison with those engaging in leisure activities alone. Engagement in group leisure activities may be associated with a reduced risk of dementia.Copyright © 2023. Published by Elsevier Inc.

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