Related Variables
| omahi3b |
Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ mixed apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or arousal) / hour of sleep in supine position from type I polysomnography
Calculated - Summary metric of sleep disordered breathing events. Will be missing if Total Sleep Time (TST) is 0. |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
| rdim0ps |
Apnea-Hypopnea Index (Supine): (Apneas with no oxygen desaturation threshold used only with arousal + hypopneas with > 50% flow reduction and with no oxygen desaturation used only with arousal) / hour of sleep in supine position from type I polysomnography
Supine Respiratory Disturbance Index (RDI) at all desaturations [(total number of apneas and hypopneas in supine body position) / (hours of sleep)] |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
| rdim2ps |
Apnea-Hypopnea Index (Supine): (Apneas with >= 2% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 2% 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 >= 2% desaturation) / (hours of sleep)] |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
| rdim3ps |
Apnea-Hypopnea Index (Supine): (Apneas with >= 3% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 3% 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 | |
| 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 | |
| rdim5ps |
Apnea-Hypopnea Index (Supine): (Apneas with >= 5% oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with >= 5% oxygen desaturation used and with or without arousal) / hour of sleep in supine from type I polysomnography
Supine Respiratory Disturbance Index (RDI) at >=5% desaturation [(total number of apneas and hypopneas in supine body position associated with >=5% desaturation) / (hours of sleep)] |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices | |
| supinep |
Percentage duration of sleep in supine position from type I polysomnography
Percent of sleep time in supine body position [100*(number of minutes of sleep in supine body position) / (Total Sleep Time (TST))] |
Sleep Monitoring/Polysomnography/Sleep Architecture |