Related Variables
oai4p |
Obstructive Apnea Index : (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography
Calculated - Summary metric of sleep disordered breathing events. |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
omai4p |
Childhood Adenotonsillectomy Trial (CHAT) Obstructive and Mixed Apnea Index (AHI): (Obstructive apneas with >= 4% oxygen desaturation threshold used and with or without arousal+ mixed apneas with >= 4% oxygen desaturation threshold used and with or without arousal) / hour of sleep from type I polysomnography
Calculated - Summary metric of sleep disordered breathing events. |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
rdim4p |
Apnea-Hypopnea Index: (Apneas with >= 4% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation used and with or without arousal) / hour of sleep from type I polysomnography
[(total number of apneas and hypopneas associated with >= 3% desaturation) / (hours of sleep)] |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
rdim4ps |
Apnea-Hypopnea Index (Supine): (Apneas with >= 4% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation used and with or without arousal) / hour of sleep in supine from type I polysomnography
[(total number of apneas and hypopneas in supine body position associated with >= 3% desaturation) / (hours of sleep)]. will be missing if no time supine or low position sensor quality. |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
rdimnr4p |
Apnea-Hypopnea Index (NREM): (Apneas with >= 4% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 4% oxygen desaturation used and with or without arousal) / hours of NREM sleep from type I polysomnography
[(total number of apneas and hypopneas in non-rapid eye movement sleep associated with >= 4% desaturation) / (hours of non-rapid eye movement sleep (NREM))] |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices |