minremp - Search - Sleep Data - National Sleep Research Resource

Apnea-Hypopnea Index (REM): Apneas with >= 3% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal / hour of REM sleep from type II polysomnography

rdirem3p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

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

rdirem4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Apnea-Hypopnea Index (REM): Apneas with >= 5% oxygen desaturation and with or without arousal+ hypopneas with > 30% flow reduction and with >= 5% oxygen desaturation and with or without arousal / hour of REM sleep from type II polysomnography

rdirem5p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Arousal Index (NREM): Arousals per hour of NREM sleep from type II polysomnography

ai_nrem under Sleep Monitoring/Polysomnography/Arousals in SHHS variables

Arousal Index (REM): Arousals per hour of REM sleep from type II polysomnography

ai_rem under Sleep Monitoring/Polysomnography/Arousals in SHHS variables

Total duration of REM sleep from type II polysomnography

timerem under Sleep Monitoring/Polysomnography/Sleep Architecture in SHHS variables

Total time scored as rapid eye movement sleep (REM) rounded to nearest minute

Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (NREM): (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 NREM sleep from type I polysomnography

omahi3nr under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events. Will be missing if Total Sleep Time (TST) is 0.

Childhood Adenotonsillectomy Trial (CHAT) Apnea-Hypopnea Index (AHI) - Obstructive and Mixed Apnea-Hypopnea Index (REM): (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 REM sleep from type I polysomnography

omahi3r under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Calculated - Summary metric of sleep disordered breathing events. Will be missing if Total Sleep Time (TST) is 0.

Apnea-Hypopnea Index (NREM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with no oxygen desaturation used and with or without arousal) / hours of NREM sleep from type I polysomnography

rdimnr0p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

Non-rapid eye movement sleep (NREM) Respiratory Disturbance Index (RDI) at all desaturations [(total number of apneas and hypopneas in non-rapid eye movement sleep (NREM)) / (hours of non-rapid eye movement sleep (NREM))]

Apnea-Hypopnea Index (NREM): (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) / hours of NREM sleep from type I polysomnography

rdimnr2p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in non-rapid eye movement sleep (NREM) associated with >= 2% desaturation) / (hours of non-rapid eye movement sleep (NREM))]

Apnea-Hypopnea Index (NREM): (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) / hours of NREM sleep from type I polysomnography

rdimnr3p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in non-rapid eye movement sleep (NREM) associated with >= 3% desaturation) / (hours of non-rapid eye movement sleep (NREM))]

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

rdimnr4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in non-rapid eye movement sleep associated with >= 4% desaturation) / (hours of non-rapid eye movement sleep (NREM))]

Apnea-Hypopnea Index (NREM): (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) / hours of NREM sleep from type I polysomnography

rdimnr5p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in non-rapid eye movement sleep (NREM) associated with >= 5% desaturation) / (hours of non-rapid eye movement sleep (NREM))]

Apnea-Hypopnea Index (REM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and with no oxygen desaturation used and with or without arousal) / hours of REM sleep from type I polysomnography

rdimrem0p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in rapid eye movement sleep (REM)) / (hours of rapid eye movement sleep (REM))]

Apnea-Hypopnea Index (REM): (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) / hours of REM sleep from type I polysomnography

rdimrem2p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in rapid eye movement sleep (REM) associated with >= 2% desaturation) / (hours of rapid eye movement sleep (REM))]

Apnea-Hypopnea Index (REM): (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) / hours of REM sleep from type I polysomnography

rdimrem3p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in rapid eye movement sleep (REM) associated with >= 3% desaturation) / (hours of rapid eye movement sleep (REM))]

Apnea-Hypopnea Index (REM): (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 REM sleep from type I polysomnography

rdimrem4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in rapid eye movement sleep (REM) associated with >= 4% desaturation) / (hours of rapid eye movement sleep (REM))]

Apnea-Hypopnea Index (REM): (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) / hours of REM sleep from type I polysomnography

rdimrem5p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(total number of apneas and hypopneas in rapid eye movement sleep (REM) associated with >= 5% desaturation) / (hours of rapid eye movement sleep (REM))]

Arousal Index (NREM): number of arousals per hour of NREM sleep from type I polysomnography

ai_nrem under Sleep Monitoring/Polysomnography/Arousals in CHAT variables

Arousal Index (REM): number of arousals per hour of REM sleep from type I polysomnography

ai_rem under Sleep Monitoring/Polysomnography/Arousals in CHAT variables

Total Sleep Duration (REM): the interval between sleep onset time and lights on/out-bed time while the participant is in REM sleep from type I polysomnography

timerem under Sleep Monitoring/Polysomnography/Sleep Architecture in CHAT variables

Total time scored as rapid eye movement sleep (REM)