Luebbert, K., Dahme, B., & Hasenbring, M. (2001). The effectiveness of relaxation training in reducing treatment related symptoms and improving emotional adjustment in acute and non-surgical cancer treatment: A meta-analytical review. Psycho-Oncology, 10, 490–502.

Databases searched included MEDLINE, PsycINFO, PSYNDEX, and CANCERLIT.

Randomized controlled trials (RCTs) conducted 1980–1995

Authors analyzed 15 studies.

Authors reported a small but significant effect on treatment-related symptoms, a significant medium effect on depression, and a small effect on anxiety.

Consistency of positive results showed reductions in treatment-related side effects and improved emotional adjustment.