Objectives: The aim of the current study was to analyze whether biographical writing interventions have an impact on depression and QoL compared to daily diary writing. We also wanted to investigate differential effects between structured and unstructured interventions.
Method: In two Northern regions of Germany, 119 older adults aged 64-90 were randomly assigned to three different types of narrative writing interventions: written structured and unstructured biographical disclosure as well as daily diary writing. Depression (PHQ-9), QoL (SF-12, EUROHIS) and trauma-related symptoms (PCL-C) were obtained pre- and post-interventions as well as at three-month follow-up.
Results: Follow-up measures were obtained from 85 participants (29% loss to follow-up; mean age = 73.88; 68.2% female). Results of repeated measurement analysis demonstrated a significant effect on depression with the daily diary writing group showing lower depressive symptoms than structured biographical writing. We did not find a significant impact on QoL. Post-hoc analyses showed that posttraumatic symptoms lead to increases in depressive symptoms.
Conclusion: In a non-clinical sample of community-dwelling older adults, biographical writing interventions were not favorable to daily diary writing concerning the outcomes of the study. This might be related to the association of traumtic reminiscences of former children of World War II and outcome measures.
Keywords: Prevention; biographical intervention; depression; expressive writing; older adults.