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Number of oxygen desaturations with < 90% saturation per hour of estimated sleep from type III home sleep apnea test
ndesat90h under Sleep Monitoring/Polysomnography/Oxygen Saturation in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Number of oxygen desaturations with >= 5% desaturation per hour of estimated sleep from type III home sleep apnea test
ndesatc10h under Sleep Monitoring/Polysomnography/Oxygen Saturation in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Number of oxygen desaturations with >= 10% desaturation per hour of estimated sleep from type III home sleep apnea test
ndesatc20h under Sleep Monitoring/Polysomnography/Oxygen Saturation in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Number of oxygen desaturations with >= 20% desaturation per hour of estimated sleep from type III home sleep apnea test
ndesatcgt20h under Sleep Monitoring/Polysomnography/Oxygen Saturation in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Total number of oxygen desaturations with > 20% desaturation during estimated sleep from type III home sleep apnea test
ndesatgt20 under Sleep Monitoring/Polysomnography/Oxygen Saturation in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Number of oxygen desaturations with > 20% desaturation per hour of estimated sleep from type III home sleep apnea test
ndesatgt20h under Sleep Monitoring/Polysomnography/Oxygen Saturation in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Total Number of Respiratory Events: All respiratory events with at least 50% flow reduction and without any oxygen desat threshold used during estimated sleep from type III home sleep apnea test
aphyp under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)Details about how the respiratory events were scored can be found in the Embletta scoring manual.
Total Number of Respiratory Events (Non-Supine): All respiratory events with at least 50% flow reduction and without any oxygen desat threshold used during estimated sleep in non-supine position from type III home sleep apnea test
aphypns under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)Details about how the respiratory events were scored can be found in the Embletta scoring manual.
Total Number of Respiratory Events (Supine): All respiratory events with at least 50% flow reduction and without any oxygen desat threshold used during estimated sleep in supine position from type III home sleep apnea test
aphyps under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)Details about how the respiratory events were scored can be found in the Embletta scoring manual.
Total number of central apneas with no oxygen desaturation threshold used during estimated sleep in non-supine position from type III home sleep apnea test
ncan under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Total number of central apneas with no oxygen desaturation threshold used during estimated sleep in supine position from type III home sleep apnea test
ncas under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HEARTBEAT variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Apnea-Hypopnea Index (AHI): (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation ) / hour of estimated sleep from type III home sleep test
aphypi under Sleep Monitoring/Home Sleep Test in HOMEPAP variables
Calculated - Summary metric of sleep disordered breathing events. Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (alternative) Berry RB et al. 2012 (PubMed ID:23066376), and (2) AASM 2015 (acceptable) [Berry RB et al. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, Version 2.2. American Academy of Sleep Medicine, Darien, IL, 2015.]. Search for all AHI variables consistent with the same clinical guidelines within this dataset
Average heart rate during estimated sleep from type III home sleep test
avgbpn under Sleep Monitoring/Home Sleep Test in HOMEPAP variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Average oxygen saturation during estimated sleep from type III home sleep test
avgsat under Sleep Monitoring/Home Sleep Test in HOMEPAP variables
Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)
Percent of total sleep duration in REM sleep from type I polysomnography (split-night, diagnostic)
pctrem_d under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, total sleep duration would be called total sleep time (TST).
Percent of total sleep duration in REM sleep from type I polysomnography (split-night, treatment)
pctrem_t under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, total sleep duration would be called total sleep time (TST).
Percentage of total sleep duration with < 90% oxygen saturation from type I polysomnography (full-night)
pctsa90h under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, total sleep duration would be called total sleep time (TST).
Percentage of stage 1 sleep among total sleep duration from type I polysomnography (split-night, diagnostic)
pctstg1_d under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, total sleep duration would be called total sleep time (TST).
Percentage of stage 1 sleep among total sleep duration from type I polysomnography (split-night, treatment)
pctstg1_t under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, total sleep duration would be called total sleep time (TST).
Percentage of stage 2 sleep among total sleep duration from type I polysomnography (split-night, diagnostic)
pctstg2_d under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, total sleep duration would be called total sleep time (TST).
Percentage of stage 2 sleep among total sleep duration from type I polysomnography (split-night, treatment)
pctstg2_t under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, total sleep duration would be called total sleep time (TST).
Percentage of stage 3/4 sleep among total sleep duration from type I polysomnography (split-night, diagnostic)
pctstg34_d under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, total sleep duration would be called total sleep time (TST).
Percentage of stage 3/4 sleep among total sleep duration from type I polysomnography (split-night, treatment)
pctstg34_t under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Conventionally, total sleep duration would be called total sleep time (TST).
Sleep Efficiency (split-night, diagnostic): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography
slpeff_d under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep (i.e. total sleep time, TST), while in-bed period is the interval between lights off/in-bed time and lights on/out-bed time (i.e. time in bed, TIB).
Sleep Efficiency (split-night, treatment): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography
slpeff_t under Sleep Monitoring/Polysomnography/Sleep Architecture in HOMEPAP variables
Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep (i.e. total sleep time, TST), while in-bed period is the interval between lights off/in-bed time and lights on/out-bed time (i.e. time in bed, TIB).
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