Sport and Recreational Physical Activities Attenuate the Predictive Association of Multimorbidity With Increased Geriatric Depressive Symptoms: A 14-Year Follow-Up Study of Community-Dwelling Older Adults

Multimorbidity is associated with increased depression risks. Little research examines how physical exercise moderates this association. From an existing cohort of community-dwelling older adults in Hong Kong recruited in 2001-2003, the authors included participants who were successfully interviewed after 14 years (2015-2017). Geriatric depressive symptoms were used as the primary outcome and measured by the 15-item Geriatric Depression Scale, while multimorbidity was operationalized using a list of 19 conditions. Subscores of the Physical Activity Scale for the Elderly measuring light. moderate, and strenuous sport/recreational activities were included as moderators. In total, 1,056 participants were included, of whom 50.7% were multimorbid. Multimorbidity was associated with 12% more geriatric depressive symptoms, but strenuous physical activities were associated with a smaller risk elevation only among multimorbid patients (adjusted relative risk = 0.99, 95% confidence interval [0.98, 0.99]; p = .001). In conclusion, strenuous sport and recreational activities may attenuate the association between multimorbidity and geriatric depressive symptoms.