The moderating role of informal caregiver’s involvement on the relationship between patient activation and adherence to treatment: Implications for self-management intervention in cancer care.
12083 Background: With increasing demands for a more active role on the part of individuals with cancer and their families in cancer care, patient activation (PA) is emerging as a key factor to promote self-management, adherence to treatment, and satisfaction with treatment planning. The present work investigated the relationship between patient activation and treatment decision making. Given the role informal caregivers play on patient-reported outcomes, it was additionally assessed whether caregiver involvement acted as a moderator of this relationship. Methods: Survey data collected from 504 cancer survivors recruited through online consumer panels were utilized. The survey contained questions concerning treatment options, quality of life, adherence to treatment, next to presence and involvement of informal caregivers. Additionally, the Patient Activation Measure (PAM), sociodemographic and clinical questions were included. A path analysis Structural Equation Modeling (SEM) controlling for covariates was used to examine the relationship between Patient Activation Measure (PAM), caregiver involvement, and the identified outcomes. Moderator analysis was conducted using multiple group SEM. Results: Respondents were mostly women (57.1%), non-Hispanic white (72.9%), middle aged or older adults (68% ≥ 55 y.o.) The four largest cancer type groups were prostate (16.3%), early stage breast (9.7%), gynecological (8.9%), and colorectal cancer (8.3%). Most of the respondents were diagnosed more than 4 years earlier (52.0%). Participants were evenly split between those who received care at an academic cancer center (29.4%) and those treated at community hospital (31.7%). Patient activation was significantly associated with treatment planning being reflective of survivors ’goals and values ( p < 0.001); adherence to treatment ( p = 0.011); and satisfaction ( p < 0.001). Caregiver’s involvement significantly moderated the association between activation and adherence to treatment. Conclusions: Patient activation was positively associated with all three selected outcomes. However, for cancer survivors reporting low rates of caregiver involvement, patient activation was not associated with treatment adherence. Research is needed to deliver and test patient activation interventions inclusive of informal caregivers to improve self-management.