This study will determine the variability of the frequency and severity of obstructive apnea in children as measured by two PSGs performed no more than 4 weeks apart. The variability measured will be a composite of the physiologic variability within individuals, the PSG signal- quality variability, and the PSG scoring variability. The scoring variability will be defined further by a substudy involving replicate scoring of a selection of PSGs. Data from this study will help to characterize better respiratory disturbance during sleep in children, and are critical to the interpretation of future studies examining the natural history of OSAS and the efficacy of treatment.

Project Start
2001-12-01
Project End
2002-11-30
Budget Start
Budget End
Support Year
41
Fiscal Year
2002
Total Cost
Indirect Cost
Name
Johns Hopkins University
Department
Type
DUNS #
045911138
City
Baltimore
State
MD
Country
United States
Zip Code
21218
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