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Multi-Ethnic Study of Atherosclerosis

Name Label Folder
cent_obs_ratio
Ratio of the number of central apneas with no oxygen desaturation threshold used and with or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type II polysomnography
Ratio of the number of central apneas with no oxygen desaturation threshold used and with or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Respiratory Event Counts
cent_obs_ratioa
Ratio of the number of central apneas with no oxygen desaturation threshold used or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography
Ratio of the number of central apneas with no oxygen desaturation threshold used or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Respiratory Event Counts
apnea35
Total number of apneas with >= 3% oxygen desaturation and with or without arousal during sleep from type II polysomnography
Total number of apneas with >= 3% oxygen desaturation and with or without arousal during sleep from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts
oarop5
Total number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal during REM sleep in non-supine position from type II polysomnography
Total number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal during REM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Respiratory Event Counts