Posted from archive: 02.01.2013 | by AMRA


Andersen et al. [Acta Oncologica] studied a cohort of 336 breast cancer patients, randomly assigned to either MBSR or treatment as usual. Self-reported sleep quality improved for both conditions, with a significantly greater improvement noted for MBSR. The effect size was small, however, and the groups no longer differed at 6-, and 12-month follow-up, controls eventually catching up with MBSR participants.

The authors conclude MBSR has a small short-term effect on sleep. MBSR participants maintained their gains at long-term follow-up, suggesting maintenance of their initial improvement over time. Sleep problems were rare in this cohort, perhaps due to the patients being an average of 7-8 months past their diagnosis, placing a ceiling on the magnitude of change scores.


Andersen, S. R., Würtzen, H., Steding-Jessen, M., Christensen, J., Andersen, K. K., Flyger, H., . . . Dalton, S. O. (2013). Effect of mindfulness-based stress reduction on sleep quality: Results of a randomized trial among Danish breast cancer patients. Acta Oncologica, 52(2), 336-44. [PMID: 23282113]

[Link to abstract]