Social determinants of health, psychological distress, and caregiver burden among informal cancer caregivers of cancer survivors during treatment.

Objective: This study compared three ethnic/racial groups of informal cancer caregivers on social determinants of health and tested social determinants of health as predictors of psychological distress and caregiver burden.

Methods: This study was a secondary analysis of baseline data of a sequential multiple assignment randomized trial (SMART) testing symptom management interventions with caregiver-survivor dyads. Caregivers completed baseline measures of social determinants of health (SDoH), functional limitations, psychological distress, and caregiver burden. Hispanic, non-Hispanic White, and non-Hispanic other races caregivers were compared on these variables. Multivariate tests of associations between SDoH and caregiver burden and psychological distress were conducted in structural equation modeling with caregiver burden and psychological distress as latent variables.

Results: Hispanic caregivers reported significantly higher caregiver burden, specifically for finances, family, and schedules. Caregiver burden was significantly predicted by having income barely or not meeting needs, being female, socially isolated, married, Hispanic, and having poor physical functioning. Significant predictors of caregivers' psychological distress: being female, being socially isolated, and having poor physical functioning.

Conclusion: Hispanic caregivers experience significant challenges associated with caregiver burden, especially if they are female, socially isolated, and have poor physical functioning. Assessment of these SDoH is important in caregiver health to provide supportive care during caregiving.

Clinical Trial Registration Number: NCT03743415 www.clinicaltrials.gov.