Chest
Clinical InvestigationsSLEEPPrevalence of Insomnia Symptoms in Patients With Sleep-Disordered Breathing
Section snippets
Patient Sample
The study was approved by the Human Research and Review Committee of the University of New Mexico Health Sciences Center. From July 1, 1997, through December 31, 1999, approximately 2,000 new patients at the University Hospital Sleep Disorders Center completed an extensive “sleep medicine history” at intake. The current study included all adult patients whose surnames began with the letters“ A”, “B”, and “C” (n = 252). Of these 252 patients, 231 received a diagnosis of SDB and constitute the
Results
Prior to the primary analysis, patients with OSA and UARS diagnoses were compared on pertinent variables to determine significant differences. There were 211 OSA patients and 20 UARS patients. As expected, significant differences were found only for AHI (OSA = 56.7[40.1] vs UARS = 2.5 [1.5]; F[1,227] = 34.5, p < 0.0001) and minSao2 (OSA = 74.0 [13.7] vs UARS = 84.2 [6.6]; F[1,225] = 10.34, p = 0.001). No other differences were found for demographic, objective, or outcome variables; therefore,
Discussion
In a university sleep-disorders clinic, insomnia symptoms were widely prevalent in a representative sample of objectively diagnosed SDB patients with OSA or UARS. Patients with SDB and insomnia suffered from more physical and mental symptoms and psychiatric disorders, all of which might contribute to or exacerbate insomnia complaints.282930 In addition, 37% of study patients received sedating and/or psychotropic medications, and SDB-plus patients accounted for twice as many medication users as
Appendix
Three modules from the sleep medicine history were used to elicit information on sleep habits, sleep breathing symptoms, and insomnia symptoms:
Acknowledgment
We thank Dr. Amanda Beck, Rose Mills, Mallory Davidson, and staff of the University of New Mexico Hospital Sleep Disorders Center for facilitating the chart reviews for this study, and Dr. Lee K. Brown for editorial advice.
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This research was conducted at the Sleep and Human Health Institute and the University Hospital Sleep Disorders Center.