Social Activity and Cognitive Decline in Older Residents of Long-Term Care Facilities: A Cohort Study.

Background: Cognitive decline is a major reason for dependence and resource use in long-term care.

Objective: We explored whether social activities may prevent cognitive decline of older residents of long-term care facilities.

Methods: In a routine care cohort, 3,603 residents of long-term care facilities were assessed on average 4.4 times using the interRAI-Long-Term-Care-Facilities instrument which includes frequency of participation in social activities of long standing interest over the last 30 days and the Cognitive Performance Scale. Linear mixed models repeated measures analyses were performed corrected for age, sex, physical activity, Activities of Daily Living, mood, and health indicators.

Results: Social activity was associated with cognitive preservation over time. This association was stronger in those with no or mild cognitive impairment at baseline, relative to those with moderate to severe impairment. Participation in specific social activities such as conversing and helping others showed a similar positive association. The relation between social activity and cognitive impairment appeared to be bi-directional.

Conclusions: The protective effects of social activity offer a window of opportunity to preserve cognitive functioning in long-term care residents.