Depressive Symptom Trajectories and Cognition Among Older American Couples: A Dyadic Perspective

Objectives This study examined whether trajectories of depressive symptoms of one spouse are associated with the other spouse's memory. Methods Longitudinal data from the Health and Retirement Study (2004-2016) were used (N = 5690 heterosexual couples). Latent-class growth analysis and structural equation models examined the actor and partner effects of depressive symptom trajectories on memory. Results Four depressive symptom trajectories were identified (i.e., persistently low, increasing, decreasing, and persistently high). Compared to the low trajectory group, the increasing and persistently high trajectories were associated with worse memory for both men and women. While none of the wives' depressive symptom trajectories was significantly associated with husbands' memory (p > .05), husbands' decreasing trajectory was linked to wives' better memory (beta = 0.498, 95% CI = 0.106, 0.890). Discussion Older adults with increasing and persistently high depressive symptoms may experience worse memory. Psychosocial interventions targeting depressive symptoms among older men may be beneficial to their spouses' memory.

Automated summary

This study found that trajectories of depressive symptoms in one spouse are associated with the other spouse's memory. Spouses with increasing and persistently high depressive symptoms may experience worse memory, while spouses with decreasing depressive symptoms may have better memory.