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Randomized trial of a cognitive-behavioral intervention for insomnia in breast cancer survivors
Dana R Epstein1, Shannon R Dirksen
1Carl T. Hayden Veterans Affairs Medical Center and Clinics in Phoenix, AZ, USA. dana.epstein@va.gov
Purpose/Objectives:
To determine the efficacy of a cognitive-behavioral intervention for treating insomnia in breast cancer survivors.
Design:
Randomized controlled trial.
Setting:
University and medical center settings.
Sample:
72 women at least three months after primary treatment for breast cancer with sleep-onset or sleep maintenance insomnia at least three nights per week for at least three months as determined through daily sleep diaries.
Methods:
Random assignment to a multicomponent intervention (stimulus control instructions, sleep restriction, and sleep education and hygiene) or a single-component control group (sleep education and hygiene).
Main Research Variables:
Sleep-onset latency, wake after sleep onset, total sleep time, time in bed, sleep efficiency, and sleep quality.
Findings:
After the intervention, both groups improved on sleep-onset latency, wake after sleep onset, total sleep time, time in bed, sleep efficiency, and sleep quality based on daily sleep diaries. A between-group difference existed for time in bed. Wrist actigraph data showed significant pre- to postintervention changes for sleep-onset latency, wake after sleep onset, total sleep time, and time in bed. When compared to the control group, the multicomponent intervention group rated overall sleep as more improved.
Conclusions:
A nonpharmacologic intervention is effective in the treatment of insomnia in breast cancer survivors.
Implications For Nursing:
Breast cancer survivors can benefit from a cognitive-behavioral intervention for chronic insomnia. Sleep education and hygiene, a less complex treatment than a multicomponent intervention, also is effective in treating insomnia.
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