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J Clin Psychol. 2015 Jan;71(1):21-40. doi: 10.1002/jclp.22117. Epub 2014 Aug 5.

Mediators of Mindfulness-Based Stress Reduction (MBSR): assessing the timing and sequence of change in cancer patients.

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1
University of Calgary, Department of Oncology and Alberta Health Services.

Abstract

OBJECTIVES:

This waitlist-controlled study examined the timing of changes during Mindfulness-Based Cancer Recovery (MBCR), and explored sequential mediated effects through enhanced mindfulness and emotion regulation (ER) in a cancer population.

METHOD:

Patients were recruited from the MBCR program waitlist and were either registered for immediate participation (n = 135) or waiting for the next program to begin (n = 76). Participants completed self-report measures of stress symptoms, mood disturbance, mindfulness, and ER (rumination, worry, and experiential avoidance) pre-, mid- and post-MBCR or waiting period.

RESULTS:

There was a relatively early effect of MBCR on observing, nonjudging, rumination, and worry. All other measures changed later. Early changes in present-focused nonjudgmental awareness, rumination, and worry mediated the effect of MBCR on mindfulness skills such as nonreactivity later on.

CONCLUSION:

The constructs of mindfulness and ER may overlap and changes may be mutually facilitative during MBCR. The study informs our understanding of mindfulness and ER as mechanisms of mindfulness-based interventions.

KEYWORDS:

cancer; mindfulness; meditation; emotion regulation; mechanisms

PMID:
25099479
DOI:
10.1002/jclp.22117
[Indexed for MEDLINE]

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