Related Variables
| event | Event type | Clinical Data/Incident Outcomes/Cardiovascular Diseases | |
| cai4p |
Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Calculated - Summary metric of sleep disordered breathing events |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
| rdi4p |
Apnea-Hypopnea Index: Apneas with >=4% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and >=4% oxygen desaturation and with or without arousal / hour of sleep from type II polysomnography
Ratio of the count of all apneas (central and obstructive) and hypopneas associated with at least a >=4% oxygen desaturation to the total sleep time |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
| rdi4ps |
Apnea-Hypopnea Index (Supine): Apneas with >=4% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and >=4% oxygen desaturation and with or without arousal / hour of sleep in supine position from type II polysomnography
Calculated - Summary metric of sleep disordered breathing events |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
| rdirem4p |
Apnea-Hypopnea Index (REM): Apneas with >= 4% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal / hour of REM sleep from type II polysomnography
Calculated - Summary metric of sleep disordered breathing events |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices |