Mindfulness-Based Cancer Recovery (MBCR) versus Supportive Expressive Group Therapy (SET) for distressed breast cancer survivors: evaluating mindfulness and social support as mediators

被引:0
作者
Melanie. P. J. Schellekens
Rie Tamagawa
Laura E. Labelle
Michael Speca
Joanne Stephen
Elaine Drysdale
Sarah Sample
Barbara Pickering
Dale Dirkse
Linette Lawlor Savage
Linda E. Carlson
机构
[1] Radboud University Medical Centre,Radboud Centre for Mindfulness, Department of Psychiatry
[2] University of Calgary,Department of Oncology
[3] Tom Baker Cancer Centre,Department of Psychosocial Oncology
[4] British Columbia Cancer Agency,Department of Psychiatry
[5] University of British Columbia,undefined
来源
Journal of Behavioral Medicine | 2017年 / 40卷
关键词
Mindfulness-Based Cancer Recovery; Mindfulness; Supportive Expressive Group Therapy; Social support; Mediation; Breast cancer;
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摘要
Despite growing evidence in support of mindfulness as an underlying mechanism of mindfulness-based interventions (MBIs), it has been suggested that nonspecific therapeutic factors, such as the experience of social support, may contribute to the positive effects of MBIs. In the present study, we examined whether change in mindfulness and/or social support mediated the effect of Mindfulness-Based Cancer Recovery (MBCR) compared to another active intervention (i.e. Supportive Expressive Group Therapy (SET)), on change in mood disturbance, stress symptoms and quality of life. A secondary analysis was conducted of a multi-site randomized clinical trial investigating the impacts of MBCR and SET on distressed breast cancer survivors (MINDSET). We applied the causal steps approach with bootstrapping to test mediation, using pre- and post-intervention questionnaire data of the participants who were randomised to MBCR (n = 69) or SET (n = 70). MBCR participants improved significantly more on mood disturbance, stress symptoms and social support, but not on quality of life or mindfulness, compared to SET participants. Increased social support partially mediated the impact of MBCR versus SET on mood disturbance and stress symptoms. Because no group differences on mindfulness and quality of life were observed, no mediation analyses were performed on these variables. Findings showed that increased social support was related to more improvement in mood and stress after MBCR compared to support groups, whereas changes in mindfulness were not. This suggests a more important role for social support in enhancing outcomes in MBCR than previously thought.
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页码:414 / 422
页数:8
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