Are family relationships associated with family conflict in advanced cancer patients?

Objectives: Family conflict during end-of-life care is an important issue for advanced cancer patients and their families, although studies are lacking. We investigated the association between family relationships and family conflict in advanced cancer patients. Methods: This study was a secondary analysis of a nationwide multicenter questionnaire survey targeting the bereaved family members of cancer patients who died in palliative care units, general wards, or at home to evaluate the quality of end-of-life care in Japan. Results: A total of 1084 questionnaires (63.0%) were returned and we analyzed a total of 908 responses. In total, 38.0% of family members reported at least one family conflict during end-of-life care, and the most frequent family conflict was “about certain family members not pulling their weight” (23.5%). Multivariate linear analysis revealed family members who asserted their opinions (p < 0.001), family assessment device score (p < 0.001), worries about family finances during cancer treatment (p < 0.001), family members contacted after illness were helpful (p = 0.003), female patients (p = 0.03), and family with family relationship index ≤7 (p = 0.04) were positively associated with the outcome-family conflict (OFC) score. Proxy decision maker was selected by the patient (p = 0.003), people listened to families' worries or problems (p = 0.003), physician gave sufficient explanation (p = 0.003), living will before their illness (p = 0.038) and female bereaved family members (p = 0.046) were negatively associated with the OFC score. Conclusions: It may be important for health care providers to actively assess the possibility of family conflicts according to family relationships, such as a proxy decision maker having been selected by the patient.