Long-Term Effect of a Nonrandomized Psychosocial Mindfulness-Based Intervention in Hispanic/Latina Breast Cancer Survivors

Background: There is a paucity of research on the long-term impact of stress-reduction in Hispanic/Latina breast cancer (BC) survivors, a growing minority. In this article, we assess the long-term efficacy of an 8-week training program in mindfulness-based stress reduction (MBSR) on quality of life (QoL) in Hispanic BC survivors. Methods: Hispanic BC survivors, within the first 5 years of diagnosis, stages I to III BC, were recruited. Participants were enrolled in bilingual, 8-week intensive group training in MBSR and were asked to practice a- home, daily. They were also provided with audio recordings and a book on mindfulness practices. Patient-reported outcomes for QoL and distress were evaluated at baseline, and every 3 months, for 24 months. Results: Thirty-three self-identified Hispanic women with BC completed the MBSR program and were followed at 24 months. Statistically significant reduction was noted for the Generalized Anxiety Disorder measure (mean change -2.39, P=0.04); and Patient Health Questionnaire (mean change -2.27, P=0.04), at 24 months, compared with baseline. Improvement was noted in the Short-Form 36 Health-related QoL Mental Component Summary with an increase of 4.07 (95% confidence interval = 0.48-7.66, P=0.03). However, there was no significant change in the Physical Component Summary. Conclusions: Hispanic BC survivors who participated in an 8-week MBSR-based survivorship program reported persistent benefits with reduced anxiety, depression, and improved mental health QoL over 24 months of follow-up. Stress reduction programs are beneficial and can be implemented as part of a comprehensive survivorship care in BC patients.