Obstructive sleep apnea (OSA) is associated with day time sleepiness, poor concentration and reduced work performance. However not all patients experience such symptoms and effects. According to a Canadian research team who administered a sleep survey and a work limitation questionnaire to 428 patients undergoing sleep-testing, found that daytime sleepiness was associated with worse time management, interpersonal relationships and productivity. The team also found among those subjects with whom they followed up after 2 years, that patients on CPAP therapy, showed significant improvement in lower work limitations and productivity. These results indicate a strong relationship between reports of day time sleepiness and work impairment among OSA patients.

SleepMed: 2007 Dec; 9(1):42-53.Epub 2007 Sep 6

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