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Sleep problems, comorbid mental disorders, and role functioning in the national comorbidity survey replication
Thomas Roth1, Savina Jaeger, Robert Jin
1Sleep Disorders Center, Department of Psychiatry and Behavioral Neurosciences, Henry Ford Hospital, Detroit, Michigan, USA.
Biological Psychiatry
|September 6, 2006
Summary
Sleep problems are common, affecting over a third of adults and significantly impairing daily functioning. These issues remain linked to role impairment even when accounting for mental health conditions.
Area of Science:
- Sleep science
- Psychiatry
- Public health
Background:
- Population prevalence of sleep problems remains largely unknown.
- The role of comorbid mental disorders in sleep problems and associated impairment requires further investigation.
Purpose of the Study:
- To determine the population prevalence of four common sleep problems.
- To examine the association between these sleep problems and role impairment.
- To assess whether these associations are explained by comorbid mental disorders.
Main Methods:
- Analysis of data from the National Comorbidity Survey Replication.
- Assessment of four 12-month sleep problems (insomnia, early awakening, nonrestorative sleep) using the WHO Composite International Diagnostic Interview.
- Evaluation of role impairment using the WHO Disability Schedule-II (WHO-DAS).
- Statistical control for 12-month DSM-IV anxiety, mood, impulse-control, and substance use disorders.
Main Results:
- Prevalence of individual sleep problems ranged from 16.4% to 25.0%; 36.3% reported at least one problem.
- All four sleep problems were significantly comorbid with all assessed mental disorders (median OR: 3.4).
- Sleep problems were significantly associated with role impairment, with relationships generally persisting after controlling for mental disorders.
- Nonrestorative sleep showed a stronger and more consistent association with role impairment compared to other sleep problems.
Conclusions:
- The studied sleep problems possess significant public health importance due to their high prevalence.
- These sleep problems are independently associated with substantial role impairment.
- Findings underscore the need for addressing sleep problems in public health initiatives and clinical practice.
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