Energy level and sleep quality following bone marrow transplantation.

While problems with sleep and energy level (ie fatigue) are commonly reported during recovery from bone marrow transplantation (BMT), little in-depth information regarding these two problem areas in BMT patients is available. Using both questionnaire and telephone interview methods, information regarding current sleep and energy level problems was obtained from 172 adult BMT survivors drawn from five different BMT treatment centers. Respondents were a mean of 43.5 months post-BMT at the time of the initial assessment. Similar questionnaire data was obtained from 137 respondents (80%) at a follow-up assessment 18 months after the initial assessment. Results suggested that half to two-thirds of disease-free BMT recipients experience problems with regard to current energy level or sleep quality. While for the majority of patients these problems were rated as mild, 15-20% of BMT recipients showed moderate to severe problems in these areas with corresponding decrements in quality of life. Furthermore, both cross-sectional and longitudinal analyses suggested that problems in these areas did not simply abate with time. Only low to moderate correlations were obtained between indices of sleep and energy problems and measures of anxious and depressed mood. Finally, the presence of current sleep problems was associated with older age at BMT, receipt of TBI during pre-BMT conditioning, and female gender. Further research needs to address the specific etiology of chronic problems with sleep and energy level in BMT recipients as well as evaluate biobehavioral strategies for managing these problems.