Engaging Mortality: Effective Implementation of Dignity Therapy

Abstract

Background: Patients consider the life review intervention, Dignity Therapy (DT), beneficial to themselves and their families. However, DT has inconsistent effects on symptoms and lacks evidence of effects on spiritual/ existential outcomes. Objective: To compare usual outpatient palliative care and chaplain-led or nurse-led DT for effects on a quality-of-life outcome, dignity impact. Design/Setting/Subjects: In a stepped-wedge trial, six sites in the United States transitioned from usual care to either chaplain-led or nurse-led DT in a random order. Of 638 eligible cancer patients (age ‡55 years), 579 (59% female, mean age 66.4 – 7.4 years, 78% White, 61% stage 4 cancer) provided data for analysis. Methods: Over six weeks, patients completed pretest/posttest measures, including the Dignity Impact Scale (DIS, ranges 7–35, low-high impact) and engaged in DT+usual care or usual care. They completed procedures in person (steps 1–3) or via Zoom (step 4 during pandemic). We used multiple imputation and regression analysis adjusting for pretest DIS, study site, and step. Results: At pretest, mean DIS scores were 24.3 – 4.3 and 25.9 – 4.3 for the DT (n = 317) and usual care (n = 262) groups, respectively. Adjusting for pretest DIS scores, site, and step, the chaplain-led (b = 1.7, p = 0.02) and nurse-led (b = 2.1, p = 0.005) groups reported significantly higher posttest DIS scores than usual care. Adjusting for age, sex, race, education, and income, the effect on DIS scores remained significant for both DT groups. Conclusion: Whether led by chaplains or nurses, DT improved dignity for outpatient palliative care patients with cancer. This rigorous trial of DT is a milestone in palliative care and spiritual health services research. Clinicaltrials.gov: NCT03209440.