Intervention for Stroke Survivors and Their Spousal Caregivers

This 5-year randomized intervention study uses an advanced practice nurse, with the assistance of an interdisciplinary rehabilitation team, to provide education, support, skill training, counseling, and social and community linkages to stroke survivors and their spouses for 6 months post-hospital discharge. The intervention will be delivered using previously tested protocol guidelines. Stroke survivors and their spousal caregivers will be assessed to determine whether or not the intervention is successful in (1) improving function, quality of life and perceived health and decreasing depression in the stroke survivor; (2) decreasing unplanned clinic and emergency room visits, reducing rehospitalizations and admissions to nursing homes; (3) decreasing depression, burden, stress and improving the health of spousal caregivers and (4) decreasing cytokine imbalances related to the chronic stress of caregiving among spouses. Assessments will be made at baseline and at 3, 6, 9, and 12 months post-discharge on the stroke survivor and on the spousal caregiver by a nurse who is masked to the group assignment. To determine the effect of the intervention on cytokine imbalance, the researchers will: (1) generate cytokines from cell cultures (mitogen-induced and antigen specific T-cell lines) and (2) analyze culture supernatants and plasma samples for their immunoregulatory cytokine content. The laboratory technician and immunologist will be masked to the intervention group. All covariates (i.e., sociodemographic characteristics, severity of the stroke, dyadic relationships, family functioning, co-morbid health conditions, etc.) will be evaluated to determine which are significantly related to the outcomes and only those will be included in the model. Hierarchical Linear Models (HLM) will be used to model change over time for individual participants using a polynomial form. Depending on the nature of the change function, individual parameter estimates of the intercept, slope, and if necessary, curvature will be compared across groups.