Sleep Patterns in Chronic Fatigue Syndrome vs. Healthy Controls
Author Information
Author(s): William C. Reeves, Christine Heim, Elizabeth M. Maloney, Laura Solomon Youngblood, Elizabeth R. Unger, Michael J. Decker, James F. Jones, David B. Rye
Primary Institution: Centers for Disease Control & Prevention, Atlanta, GA, USA
Hypothesis
Does chronic fatigue syndrome account for accompanying sleep disturbances or does an underlying sleep abnormality contribute to chronic fatigue syndrome?
Conclusion
The study found no significant differences in sleep architecture between individuals with chronic fatigue syndrome and non-fatigued controls, suggesting that altered sleep architecture is not a critical factor in chronic fatigue syndrome.
Supporting Evidence
- 18% of persons with chronic fatigue syndrome had severe primary sleep disorders.
- No significant differences in sleep architecture were found between chronic fatigue syndrome cases and controls.
- 97% of persons with chronic fatigue syndrome reported unrefreshing sleep compared to 20% of controls.
Takeaway
People with chronic fatigue syndrome often feel tired and have trouble sleeping, but this study found that their sleep patterns are not very different from those who don't have fatigue issues.
Methodology
Participants underwent overnight polysomnographic and daytime multiple sleep latency testing to characterize sleep architecture.
Potential Biases
Potential bias due to the use of sleep-altering medications among participants.
Limitations
The small sample size of identified subjects with current chronic fatigue syndrome may not be sufficient to identify small but biologically significant differences in sleep architecture.
Participant Demographics
Participants included 43 individuals with chronic fatigue syndrome and 43 non-fatigued controls, matched for sex, race, age, and body mass index.
Statistical Information
P-Value
0.003
Statistical Significance
p = .003
Digital Object Identifier (DOI)
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