CONTEXT: Few randomized controlled trials of advance care planning with a decision aid (DA) show an effect on patient preferences for end-of-life (EOL) care over time, especially in racial/ethnic settings outside the United States.
OBJECTIVES: The objective of this study was to examine the effect of a decision aid consisting of a video and an advance care planning (ACP) booklet for end-of-life (EOL) care preferences among patients with advanced cancer.
METHODS: Using a computer-generated sequence, we randomly assigned (1:1) advanced cancer patients to a group that received a video and workbook that both discussed either ACP (intervention group) or cancer pain control (control group). At baseline, immediately post-intervention, and at 7 weeks, we evaluated the subjects' preferences. The primary outcome was preference for EOL care (active treatment, life-prolonging treatment, or hospice care) on the assumption of a fatal disease diagnosis and the expectation of death 1) within 1 year, 2) within several months, and 3) within a few weeks. We used Bonferroni correction methods for multiple comparisons with an adjusted p level of 0.005.
RESULTS: From August 2017 to February 2018, we screened 287 eligible patients, of whom 204 were enrolled to the intervention (104 patients) or the control (100 patients). At post-intervention, the intervention group showed a significant increase in preference for active treatment, life-prolonging treatment, and hospice care on the assumption of a fatal disease diagnosis and the expectation of death within 1 year (p<0.005). Assuming a life expectancy of several months, the change in preferences was significant for active treatment and hospice care (p<0.005) but not for life-prolonging treatment. The intervention group showed a significant increase in preference for active treatment, life-prolonging treatment, and hospice care on the assumption of a fatal disease diagnosis and the expectation of death within a few weeks (p<0.005). From baseline to 7 weeks, the decrease in preference in the intervention group was not significant for active treatment, for life-prolonging treatment, and for hospice care in the intervention group in the subset expecting to die within 1 year, compared with the control group. Assuming a life expectancy of several months and a few weeks, the change in preferences was not significant for active treatment and for life-prolonging treatment, but was significantly greater for hospice care in the intervention group (p<0.005).
CONCLUSION: ACP interventions that included a video and an accompanying book improved preferences for EOL care.