METHODS: 170 patients were evaluated. Half received the intervention and half received routine care. Music therapy with progressive muscle relaxation were performed twice a day.
RESULTS: the music therapy and muscle relaxation patients had significant improvement in depression, anxiety, and length of hospital stay.
COMMENT: this is a classic case of the Hawthorne bias. Interpret results with extreme skepticism.
Eur J Oncol Nurs. 2014 Aug 30;