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.