Caregivers' depressive symptom trajectories and risk of cognitive impairment among older adults with functional limitations: A prospective cohort study.

Finding highlight the intricate and non-linear association between CG depressive trajectory and CR cognitive impairment. This evidence can be used to enlighten policymakers and health providers about the need for risk stratification screening for CG mental health and early treatment for CG depression to prevent or delay CR's cognitive impairment.