This will be a prospective validation study of a sample of consecutive pediatric Down syndrome patients who are seen through the weekly Down syndrome clinic at OHSU/Doernbecher's. Questionnaires will be administered to approximately 5 new patients per month. Since this population has a higher prevalence of OSA than the general pediatric population, and OSA is a potentially modifiable determinant of quality of life, validated instruments are critical in assessing disease burden and response to treatment.
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Apnea-hypopnea index (AHI) from polysomnography
Timeframe: AHI collected at initial sleep study and 3 months later (if a second sleep study is needed as determined by doctor)