Abstract
BACKGROUND/OBJECTIVE: Environmental factors such as psychosocial stress have demonstrated to have an impact on the breast cancer (BC) course. This study aims to explore the impact of psychotherapy and stressful life events (SLE) on BC survivors' illness trajectories. METHOD: 68 women with BC underwent Positive Psychotherapy or Cognitive-Behavioral Stress Management and 37 patients were included as a control group. The effects of distress reduction and SLE on their 5-year recurrence were investigated. Additional analyses examined the effect of receiving vs. not receiving psychotherapy and of the type of therapy on survival and disease-free interval, DFI. RESULTS: A one-point decrease of the Hospital Anxiety and Depression Scale (HADS) after psychotherapy predicted a lower risk of 5-year recurrence, OR = 0.84, p = .037, 95% CI = 0.71-0.99). Also, a one point-increase in the number threatening SLE (OR = 1.92; p = .028, 95% CI = 1.07-3.43) was related to higher 5-year recurrence. CONCLUSIONS: The findings highlight the necessity of studying not only a given situation (i.e., psychotherapy, SLE) but its specific impact on individuals.