Cancer Prognostic Awareness: Relations to Patient and Caregiver Quality of Life and Care Preferences.

Abstract

Patients who are prognostically aware are more likely to receive end-of-life care consistent with their values. However, prognostic awareness has shown mixed associations with patients' quality-of-life (QoL) outcomes. Theory suggests that acceptance of cancer may moderate relationships between prognostic awareness and outcomes of QoL and end-of-life treatment preferences. Patients' degree of prognostic awareness and illness acceptance may also impact their family caregivers' QoL and end-of-life treatment preferences for the patient. To examine the potential moderating role of patient acceptance of cancer in the relationships between patient prognostic awareness and both patient and caregiver QoL and end-of-life treatment preferences. A cross-sectional, secondary analysis was conducted using data from patients with advanced cancer (n = 243) and their caregivers (n = 87) in the multi-institutional Coping with Cancer-II cohort study. Patient physical, psychological, and existential QoL were examined in a moderation path analysis. Caregiver physical and psychological QoL were examined in separate linear regression analyses. Patient and caregiver end-of-life treatment preferences were examined in multiple logistic regression moderation models. No significant moderations were found. Greater patient illness acceptance was associated with better patient QoL outcomes and caregiver psychological QoL but was unrelated to end-of-life treatment preferences. Greater patient prognostic awareness was associated with worse patient physical QoL and both patients' and caregivers' preference for comfort care. Increasing patients' prognostic awareness and cancer acceptance may improve values-consistent end-of-life care and patient and caregiver QoL outcomes. Findings support timely conversations to promote prognostic awareness and further testing of acceptance-based interventions in advanced cancer.