Depressive-symptom trajectories from end-of-life caregiving through the first 2 bereavement years for family caregivers of advanced cancer patients.

BACKGROUND: Family caregivers' distinct depressive-symptom trajectories are understudied and have been examined independently during end-of-life (EOL) caregiving or bereavement, making it difficult to validate two competing hypotheses (wear-and-tear vs. relief) of caregiving effects on bereavement. Existing studies may also miss short-term heterogeneity in depressive symptoms during the immediate postloss period due to lengthy delays in the first postloss assessment.

PURPOSE: This secondary-analysis study examined distinct depressive-symptom trajectories for caregivers of advanced cancer patients from EOL caregiving through the first 2 bereavement years with closely spaced assessments.

METHODS: Depressive symptoms were measured monthly during EOL caregiving and 1, 3, 6, 13, 18, and 24 months postloss among 661 caregivers using the Center for Epidemiologic Studies-Depression scale. Depressive-symptom trajectories were identified using latent-class growth analysis while controlling for gender and age.

RESULTS: We identified seven distinct depressive-symptom trajectories (prevalence) characterized by the timing, intensity, and duration of depressive symptoms: minimal-impact resilience (20.4%), recovery (34.0%), preloss-grief only (21.6%), delayed symptomatic (9.1%), relief (5.9%), prolonged symptomatic (6.5%), and chronically persistent distressed (2.5%).

CONCLUSION: Caregivers of advanced cancer patients responded heterogeneously to the stresses of EOL caregiving and bereavement. The majority of caregivers was resilient while providing caregiving and quickly rebounded to healthy levels of psychological functioning during bereavement, whereas a minority experienced delayed-symptomatic, prolonged-symptomatic, or chronically-persistent-distressing depressive-symptom trajectories. Linking caregivers' psychological experiences from caregiving through bereavement by closely spaced assessments can more comprehensively illustrate their depressive-symptom trajectories, which confirm both the wear-and-tear and relief hypotheses, and help in targeting interventions for distinct depressive-symptom trajectories.