Related Variables
| nsrr_ahi_hp4r |
Apnea-Hypopnea Index : (All apneas + hypopneas with >= 4% oxygen desaturation or with arousal) / hour of sleep
Harmonized by the NSRR team. Refer to the source for detailed definition for respiratory events: :ahi_a0h4a: |
Harmonized/Polysomnography/Apnea-Hypopnea Indices | |
| canbp | Total number of central apnea in NREM sleep in supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| canop | Total number of central apnea in NREM sleep in non-supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| carbp | Total number of central apnea in REM sleep in supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| carop | Total number of central apnea in REM sleep in non-supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| hnrba4 | Total number of hypopnea in NREM sleep in supine position : hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation or with arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| hnroa4 | Total number of hypopnea in NREM sleep in non-supine position : hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation or with arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| hremba4 | Total number of hypopnea in REM sleep in supine position : hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation or with arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| hroa4 | Total number of hypopnea in REM sleep in non-supine position : hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation or with arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| manrbp | Total number of mixed apnea in NREM sleep in supine position: Mixed apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| manrop | Total number of mixed apnea in NREM sleep in non-supine position: Mixed apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| marbp | Total number of mixed apnea in REM sleep in supine position: Mixed apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| marop | Total number of mixed apnea in REM sleep in non-supine position: Mixed apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| oanbp | Total number of obstructive apnea in NREM sleep in supine position: Obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| oanop | Total number of obstructive apnea in NREM sleep in non-supine position: Obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| oarbp | Total number of obstructive apnea in REM sleep in supine position: Obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| oarop | Total number of obstructive apnea in REM sleep in non-supine position: Obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography | Sleep Monitoring/Polysomnography/Respiratory Event Counts | |
| slpprdp |
Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type I polysomnography
Conventionally, this would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater). |
Sleep Monitoring/Polysomnography/Sleep Architecture |