Name
overall_shhs1
Label
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit One (SHHS1)): Overall signal quality
Description
Overall study grade as assigned by scorer. The overall quality grade is based on the quality and duration of EEG, respiratory and oximetry signals. Based on signal quality during recording time. Studies are given a study code varying from outstanding to fair. If interested in studies of the best quality, overall quality scores of Very Good, Excellent and Oustanding can be selected. This code reflects the total duration of useable (artifact free, scorable) signals across channels, weighing those signals most critical for accurate scoring of respiratory events and staging.
Domain
ovqus2
- 1: Unsatisfactory
- 2: Poor
- 3: Fair
- 4: Good
- 5: Very Good
- 6: Excellent
- 7: Outstanding
Type
choices