Association of Childhood Friendship Experience and Depressive Symptoms Among Older Adults: A Causal Mediation Approach.

Friendship experiences during childhood were related to the risk of depressive symptoms in older Chinese adults; more importantly, social disconnectedness and cognitive function partially mediated this association. Thus, improving social engagement and cognitive function in older adults could alleviate the accumulated disadvantages due to childhood friendship deficits and help to improve their psychological well-being.