Mindfulness-based cognitive group therapy for women with breast and gynecologic cancer: a pilot study to determine effectiveness and feasibility
Menée en Australie auprès de 50 participantes, cette étude analyse la faisabilité et l'efficacité d'une psychothérapie de groupe pour les patientes atteintes d'un cancer du sein ou d'un cancer gynécologique
Purpose : Group-based mindfulness training is frequently described in psycho-oncology literature, but little is known of the effectiveness of mindfulness-based cognitive therapy (MBCT). We investigated the effectiveness and acceptability of MBCT for women with breast and gynecologic cancer. Methods : Fifty women were recruited to participate in eight weekly 2-h mindfulness sessions. Outcomes of distress, quality of life (QOL), post-traumatic growth, and mindfulness were assessed pre-intervention, post-intervention, and again 3 months later using validated measures. Data were analyzed with repeated measures ANOVAs with a Bonferroni correction. Participant satisfaction and evaluation were also assessed. Results : Forty-two women completed the program, and complete data were available for 36 women. Significant improvements with large effect sizes (
ηρ2) were observed for distress (P
< 0.001;
ηρ2
= 0.238), QOL (P = 0.001;
ηρ2
= 0.204), mindfulness (P < 0.001;
ηρ2
= 0.363) and post-traumatic growth (P < 0.001;
ηρ2
= 0.243). Gains were maintained 3 months post-intervention. Improvements in outcomes did not differ based on diagnostic group, psychological status, or physical well-being at entry. Change indices further support these findings. Scores on measures of distress, QOL, and post-traumatic growth decreased as a function of increased mindfulness at each time point (all P < 0.05). Participants reported experiencing the program as beneficial, particularly its group-based nature, and provided positive feedback of the therapy as a whole as well as its individual components. Conclusions : Within the limits of a non-randomized trial, these findings provide preliminary support for the potential psychosocial benefits of MBCT in a heterogeneous group of women with cancer. Future, more comprehensive trials are needed to provide systematic evidence of this therapy in oncology settings