Social Isolation and Depressive Symptoms of Older Chinese Immigrants: The Mediating Effect of Activity Engagement

<b>Objectives</b>: This study aimed to examine the differential impacts of two forms of social isolation on depressive symptoms and investigate the mediating role of activity engagement among older Chinese immigrants. <b>Methods:</b> Data were from four waves of the Population Study of Chinese Elderly in Chicago Study (PINE) (<i>N </i>= 2,075). Social disconnectedness was measured by social network size and range, living arrangement, and marital status. Perceived isolation was measured by loneliness and lack of social support. Activity engagement was assessed by engagement with various social and cognitive activities. <b>Results:</b> The latent growth curve models indicated that social disconnectedness and perceived isolation were associated with a higher initial level of depressive symptoms. However, perceived isolation predicted a faster decline in depressive symptoms. Activity engagement had significant mediating effects on the relationships. <b>Discussion:</b> Efforts should focus on reducing social isolation and providing opportunities for activity engagement to mitigate depression among older Chinese immigrants.