Berger, A. M., Kuhn, B. R., Farr, L. A., Lynch, J. C., Agrawal, S., Chamberlain, J., & Von Essen, S. G. (2009). Behavioral therapy intervention trial to improve sleep quality and cancer-related fatigue. Psycho-oncology, 18, 634–646.
To determine the effectiveness of a behavioral therapy (BT) intervention, an individualized sleep promotion plan (ISPP), on sleep quality and fatigue in women with breast cancer receiving adjuvant chemotherapy.
Participants were recruited and screened for eligibility between 2003 and 2006. Eligible women interested in participation were visited by a research nurse who completed the randomization procedure, administered baseline questionnaires, and had patients wear an actigraph two days prior to the initial treatment. The intervention was delivered by research nurses who were trained by a sleep psychologist.
Those assigned to the BT group developed a 120-item ISPP with the research nurse according to the nurse's review of responses to measures to identify areas of sleep difficulty. Advice and information was tailored to individual needs. Revisions to the ISPP were made in 30-minute appointments made with participants two days prior to each treatment and 30 days after the last treatment. Reinforcement of the plan was made in 15-minute appointments seven days after each revision. Each ISPP included
Patients in the control group received equal time and attention at each home visit and were provided with general support and a discussion of a new healthy eating topic.
Multisite
This was a randomized, controlled study.
Baseline sleep quality measures indicated mild fatigue, somewhat poor sleep quality, low levels of symptom distress, and normal anxiety and depression levels. PSQI scores indicated lower sleep quality than the general adult population but better scores than those previously associated with poor sleep quality in patients with breast cancer. There were significant differences over time on all sleep variables from the diaries and actigraphs (p < 0.01). Diaries showed a significantly lower number of awakenings (p = 0.032), a lower average amount of time awake while in bed (p = 0.027), and higher sleep efficiency (p = 0.001) in the BT group. Fatigue scores in both groups increased during treatment and decreased after treatment ended (p < 0.0001). This pattern was similar in both study groups. Perceived fatigue was similar between the two groups. There was a trend of improved sleep quality over time (PSQI) in the BT group.
The four-component ISPP was associated with improved sleep quality over time, better sleep efficiency, and fewer awakenings. Findings suggested that perceptions of improved sleep quality were not consistently associated with diary entries or objective sleep measures.