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Home Positive Airway Pressure

Name Label Folder
ahi
Apnea-Hypopnea Index (AHI): (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation ) / hour of sleep from type I polysomnography or type III home sleep test
Apnea-Hypopnea Index (AHI): (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation ) / hour of sleep from type I polysomnography or type III home sleep test

Composite AHI based on the diagnostic sleep study and home sleep study.

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

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_d
Apnea-Hypopnea Index (AHI) (split-night, diagnostic): (All apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal ) / hour of sleep from type I polysomnography
Apnea-Hypopnea Index (AHI) (split-night, diagnostic): (All apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal ) / hour of sleep from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events. 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

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_full
Apnea-Hypopnea Index (AHI) (full-night): (All apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal ) / hour of sleep from type I polysomnography
Apnea-Hypopnea Index (AHI) (full-night): (All apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal ) / hour of sleep from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events. 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

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_t
Apnea-Hypopnea Index (AHI) (split-night, treatment): (All apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal ) / hour of sleep from type I polysomnography
Apnea-Hypopnea Index (AHI) (split-night, treatment): (All apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal ) / hour of sleep from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events. 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

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
avghr
Average heart rate during sleep from type I polysomnography (full-night)
Average heart rate during sleep from type I polysomnography (full-night) Sleep Monitoring/Polysomnography/Heart Rate
avghr_d
Average heart rate during sleep from type I polysomnography (split-night, diagnostic)
Average heart rate during sleep from type I polysomnography (split-night, diagnostic) Sleep Monitoring/Polysomnography/Heart Rate
avghr_t
Average heart rate during sleep from type I polysomnography (split-night, treatment)
Average heart rate during sleep from type I polysomnography (split-night, treatment) Sleep Monitoring/Polysomnography/Heart Rate
avgsao2
Average oxygen saturation during sleep from type I polysomnography (full-night)
Average oxygen saturation during sleep from type I polysomnography (full-night) Sleep Monitoring/Polysomnography/Oxygen Saturation
avgsao2_d
Average oxygen saturation during sleep from type I polysomnography (split-night, diagnostic)
Average oxygen saturation during sleep from type I polysomnography (split-night, diagnostic) Sleep Monitoring/Polysomnography/Oxygen Saturation
avgsao2_t
Average oxygen saturation during sleep from type I polysomnography (split-night, treatment)
Average oxygen saturation during sleep from type I polysomnography (split-night, treatment) Sleep Monitoring/Polysomnography/Oxygen Saturation
slpprd_d
Total sleep duration from type I polysomnography (split-night, diagnostic)
Total sleep duration from type I polysomnography (split-night, diagnostic)

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.

This time period is used to calculate indices and other averages.

Sleep Monitoring/Polysomnography/Sleep Architecture
slpprdp
Total sleep duration from type I polysomnography (full-night)
Total sleep duration from type I polysomnography (full-night)

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.

This time period is used to calculate indices and other averages.

Sleep Monitoring/Polysomnography/Sleep Architecture
slpprd_t
Total sleep duration from type I polysomnography (split-night, treatment)
Total sleep duration from type I polysomnography (split-night, treatment)

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time.

This time period is used to calculate indices and other averages.

Sleep Monitoring/Polysomnography/Sleep Architecture
tst_modified
Total sleep duration from type I polysomnography and type III home sleep test
Total sleep duration from type I polysomnography and type III home sleep test

Composite total sleep duration based on the diagnostic sleep study and home sleep study.

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, conventionally called total sleep time. For participants from the type III home sleep test, it is based on estimated sleep duration, which provides an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441)

This time period is used to calculate indices and other averages.

Sleep Monitoring/Polysomnography/Sleep Architecture
ablation
Ablation at optimal pressure (Apnea-Hypopnea Index (AHI) < 10)
Ablation at optimal pressure (Apnea-Hypopnea Index (AHI) < 10) Sleep Monitoring/Polysomnography/Administrative
diagtype
Diagnostic type used to determine Apnea-Hypopnea Index (AHI)
Diagnostic type used to determine Apnea-Hypopnea Index (AHI) Sleep Monitoring/Polysomnography/Administrative
pctrem_d
Percent of total sleep duration in REM sleep from type I polysomnography (split-night, diagnostic)
Percent of total sleep duration in REM sleep from type I polysomnography (split-night, diagnostic)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctrem_t
Percent of total sleep duration in REM sleep from type I polysomnography (split-night, treatment)
Percent of total sleep duration in REM sleep from type I polysomnography (split-night, treatment)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctsa90h
Percentage of total sleep duration with < 90% oxygen saturation from type I polysomnography (full-night)
Percentage of total sleep duration with < 90% oxygen saturation from type I polysomnography (full-night)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctsa90p_d
Portion of sleep time spent with oxygen saturation less than 90% (split-night, diagnostic)
Portion of sleep time spent with oxygen saturation less than 90% (split-night, diagnostic)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctsa90p_t
Portion of sleep time spent with oxygen saturation less than 90% (split-night, treatment)
Portion of sleep time spent with oxygen saturation less than 90% (split-night, treatment)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctstg1_d
Percentage of stage 1 sleep among total sleep duration from type I polysomnography (split-night, diagnostic)
Percentage of stage 1 sleep among total sleep duration from type I polysomnography (split-night, diagnostic)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctstg1_t
Percentage of stage 1 sleep among total sleep duration from type I polysomnography (split-night, treatment)
Percentage of stage 1 sleep among total sleep duration from type I polysomnography (split-night, treatment)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctstg2_d
Percentage of stage 2 sleep among total sleep duration from type I polysomnography (split-night, diagnostic)
Percentage of stage 2 sleep among total sleep duration from type I polysomnography (split-night, diagnostic)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctstg2_t
Percentage of stage 2 sleep among total sleep duration from type I polysomnography (split-night, treatment)
Percentage of stage 2 sleep among total sleep duration from type I polysomnography (split-night, treatment)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctstg34_d
Percentage of stage 3/4 sleep among total sleep duration from type I polysomnography (split-night, diagnostic)
Percentage of stage 3/4 sleep among total sleep duration from type I polysomnography (split-night, diagnostic)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
pctstg34_t
Percentage of stage 3/4 sleep among total sleep duration from type I polysomnography (split-night, treatment)
Percentage of stage 3/4 sleep among total sleep duration from type I polysomnography (split-night, treatment)

Conventionally, total sleep duration would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
slpeff_d
Sleep Efficiency (split-night, diagnostic): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography
Sleep Efficiency (split-night, diagnostic): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography

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 Monitoring/Polysomnography/Sleep Architecture
slpeffp
Sleep Efficiency (full-night): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography
Sleep Efficiency (full-night): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography

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 Monitoring/Polysomnography/Sleep Architecture
slpeff_t
Sleep Efficiency (split-night, treatment): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography
Sleep Efficiency (split-night, treatment): the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography

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 Monitoring/Polysomnography/Sleep Architecture
stlonp
Clock time when the participant is out of bed or lights are on from type I polysomnography (full-night)
Clock time when the participant is out of bed or lights are on from type I polysomnography (full-night)

Conventionally, this variable would be called the end of time in bed (TIB).

Sleep Monitoring/Polysomnography/Sleep Architecture
stloutp
Clock time when the participant is in bed or lights are out from type I polysomnography (full-night)
Clock time when the participant is in bed or lights are out from type I polysomnography (full-night)

Conventionally, this variable would be called the start of time in bed (TIB).

Sleep Monitoring/Polysomnography/Sleep Architecture
tmremp
Percent of total sleep duration in REM sleep from type I polysomnography (full-night)
Percent of total sleep duration in REM sleep from type I polysomnography (full-night) Sleep Monitoring/Polysomnography/Sleep Architecture
tmstg1p
Percentage of stage 1 sleep among total sleep duration from type I polysomnography (full-night)
Percentage of stage 1 sleep among total sleep duration from type I polysomnography (full-night) Sleep Monitoring/Polysomnography/Sleep Architecture
tmstg2p
Percentage of stage 2 sleep among total sleep duration from type I polysomnography (full-night)
Percentage of stage 2 sleep among total sleep duration from type I polysomnography (full-night) Sleep Monitoring/Polysomnography/Sleep Architecture
tmstg34p
Percentage of stage 3/4 sleep among total sleep duration from type I polysomnography (full-night)
Percentage of stage 3/4 sleep among total sleep duration from type I polysomnography (full-night) Sleep Monitoring/Polysomnography/Sleep Architecture