Role of Spirituality on the Association Between Depression and Quality of Life in Stroke Survivor-Care Partner Dyads

Background: Little is known about the protective effect of spirituality on the association between known risk factors such as depression and quality of life (QOL) in stroke survivor-care partner dyads. Therefore, the aim of this study was to evaluate the moderating role of spirituality on the association between depressive symptomatology and QOL in stroke survivor-care partner dyads. Methods and Results: Longitudinal design with 223 stroke survivor-care partner dyads enrolled at survivor discharge from rehabilitation hospitals. Data collection was performed over 12 months. We measured survivors' and care partners' depression, quality of life, and spirituality. Examining the moderating role of spirituality on the association between depressive symptoms and QOL within survivor-care partner dyads, we used a traditional Actor-Partner-Interdependence Model and a basic Actor-Partner-Interdependence Model moderation model for a mixed variable. Survivors (51% male) and care partners (66% female) were 70.7 and 52.3 years old, respectively. The survivor's spirituality significantly moderated the association between care partner depressive symptomatology and survivor psychological QOL (B=0.03,P<0.05) and moderated the association between care partner depressive symptoms and care partner physical (B=0.05,P<0.001) and psychological (B=0.04,P<0.001) QOL. The care partner's own level of spirituality was significantly positively associated with their physical QOL (B=0.28,P<0.001). Conclusions: The findings from this study have broad implications for the role of spirituality in relation to QOL in medical-health contexts and the importance of examining such concepts within a dyadic framework. Greater awareness of the importance of spirituality among clinicians and nurses may improve cultural competence in healthcare services.