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Multi-Ethnic Study of Atherosclerosis

Name Label Folder
ahi_a0h3
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_a0h3a
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events. The definition for hypopneas is consistent with the following clinical guidelines: (1) American Academy of Sleep Medicine (AASM) 2007 Manual (2012 update) (recommended). Berry RB et al. 2012 (PubMed ID:23066376), and (2) American Academy of Sleep Medicine (AASM) 2015 (recommended) [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_a0h4
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II 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_a0h4a
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_c0h3
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_c0h3a
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_c0h4
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_c0h4a
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_o0h3
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_o0h3a
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_o0h4
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi_o0h4a
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi35
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ai_all5
Arousal Index: Number of arousals per hour of sleep from type II polysomnography
Arousal Index: Number of arousals per hour of sleep from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Arousal
avgplm5
Number of periodic limb movements per hour of sleep from type II polysomnography
Number of periodic limb movements per hour of sleep from type II polysomnography Sleep Monitoring/Polysomnography/Limb Movements
pctlt905
Percent total sleep duration with below 90% oxygen saturation from type II polysomnography
Percent total sleep duration with below 90% oxygen saturation from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Oxygen Saturation
cent_obs_ratio
Ratio of the number of central apneas with no oxygen desaturation threshold used and with or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type II polysomnography
Ratio of the number of central apneas with no oxygen desaturation threshold used and with or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used and with or without arousal from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Respiratory Event Counts
cent_obs_ratioa
Ratio of the number of central apneas with no oxygen desaturation threshold used or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography
Ratio of the number of central apneas with no oxygen desaturation threshold used or without arousal to the number of obstructive apneas with no oxygen desaturation threshold used or with arousal from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Respiratory Event Counts
overall5
Overall Study Quality Grade from type II polysomnography
Overall Study Quality Grade from type II polysomnography Sleep Monitoring/Polysomnography/Signal Quality
slewake5
Study Scored Sleep / Wake Only (All Sleep Scored As N2 And No Arousals Scored Due To Poor Quality EEG) from type II polysomnography
Study Scored Sleep / Wake Only (All Sleep Scored As N2 And No Arousals Scored Due To Poor Quality EEG) from type II polysomnography Sleep Monitoring/Polysomnography/Signal Quality
time_bed5
Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography
Total In-bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type II polysomnography

Calculated. Conventionally this variable would be called time in bed (TIB).

Sleep Monitoring/Polysomnography/Sleep Architecture
timeremp5
Percentage of total sleep duration in REM from type II polysomnography
Percentage of total sleep duration in REM from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
times34p5
Percentage of total sleep duration in Stage 3 and 4 from type II polysomnography
Percentage of total sleep duration in Stage 3 and 4 from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
timest1p5
Percentage of total sleep duration in Stage 1 from type II polysomnography
Percentage of total sleep duration in Stage 1 from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
timest2p5
Percentage of total sleep duration in Stage 2 from type II polysomnography
Percentage of total sleep duration in Stage 2 from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
waso5
Wake after Sleep Onset: the total duration between sleep onset and sleep offset time while being awake from type II polysomnography
Wake after Sleep Onset: the total duration between sleep onset and sleep offset time while being awake from type II polysomnography

Calculated

Sleep Monitoring/Polysomnography/Sleep Architecture
haveact5
MESA Sleep: Has Actigraphy Data (5+ Valid Nights) from type II polysomnography
MESA Sleep: Has Actigraphy Data (5+ Valid Nights) from type II polysomnography Sleep Monitoring/Polysomnography/Administrative
havepsg5
MESA Sleep: Has PSG Data (Passed Overnight Study) from type II polysomnography
MESA Sleep: Has PSG Data (Passed Overnight Study) from type II polysomnography Sleep Monitoring/Polysomnography/Administrative
inhomepsgyn5
PSG: Test Was Conducted In-Home 1=Yes from type II polysomnography
PSG: Test Was Conducted In-Home 1=Yes from type II polysomnography Sleep Monitoring/Polysomnography/Administrative
lighoff5
PSG QS: Participant Reported Time To Bed from type II polysomnography
PSG QS: Participant Reported Time To Bed from type II polysomnography Sleep Monitoring/Polysomnography/Administrative
match5
MESA Sleep: PSG/Actigraphy Start Dates Match (I.E. No Failures; Tests Were Concurrent) from type II polysomnography
MESA Sleep: PSG/Actigraphy Start Dates Match (I.E. No Failures; Tests Were Concurrent) from type II polysomnography Sleep Monitoring/Polysomnography/Administrative
scorerid5
PSG Report: Scorer ID from type II polysomnography
PSG Report: Scorer ID from type II polysomnography Sleep Monitoring/Polysomnography/Administrative
scorid5
PSG QS: Scorer ID from type II polysomnography
PSG QS: Scorer ID from type II polysomnography Sleep Monitoring/Polysomnography/Administrative
stdypdy5c
PSG QS: Days From Exam 5 To Study Date from type II polysomnography
PSG QS: Days From Exam 5 To Study Date from type II polysomnography Sleep Monitoring/Polysomnography/Administrative
ahi4pa_nrem5
Apnea-Hypopnea Index (NREM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of NREM sleep from type II polysomnography
Apnea-Hypopnea Index (NREM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of NREM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi4pa_nsup5
Apnea-Hypopnea Index (Non-Supine): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in non-supine position from type II polysomnography
Apnea-Hypopnea Index (Non-Supine): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi4pa_rem5
Apnea-Hypopnea Index (REM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of REM sleep from type II polysomnography
Apnea-Hypopnea Index (REM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of REM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi4pa_sup5
Apnea-Hypopnea Index (Supine): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in supine position from type II polysomnography
Apnea-Hypopnea Index (Supine): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi4p_nrem5
Apnea-Hypopnea Index (NREM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep from type II polysomnography
Apnea-Hypopnea Index (NREM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi4p_nsup5
Apnea-Hypopnea Index (Non-Supine): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep in non-supine position from type II polysomnography
Apnea-Hypopnea Index (Non-Supine): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi4p_rem5
Apnea-Hypopnea Index (REM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of REM sleep from type II polysomnography
Apnea-Hypopnea Index (REM): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of REM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahi4p_sup5
Apnea-Hypopnea Index (Supine): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep in supine position from type II polysomnography
Apnea-Hypopnea Index (Supine): (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
ahiu35
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai0p5
Central Apnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography
Central Apnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai0p_nrem5
Central Apnea Index (NREM): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep from type II polysomnography
Central Apnea Index (NREM): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai0p_nsup5
Central Apnea Index (Non-Supine): (Central apeneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep in non-supine position from type II polysomnography
Central Apnea Index (Non-Supine): (Central apeneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai0p_rem5
Central Apnea Index (REM): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep from type II polysomnography
Central Apnea Index (REM): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai0p_sup5
Central Apnea Index (Supine): (Central apeneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep in supine position from type II polysomnography
Central Apnea Index (Supine): (Central apeneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai4p5
Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography
Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai4pa5
Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used or with arousal) / hour of sleep from type II polysomnography
Central Apnea Index: (Central apneas with >= 4% oxygen desaturation threshold used or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnba35
Central Apnea Index (NREM, Supine): (Central apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type II polysomnography
Central Apnea Index (NREM, Supine): (Central apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnba5
Central Apnea Index (NREM, Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography
Central Apnea Index (NREM, Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnbp5
Central Apnea Index (NREM, Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type II polysomnography
Central Apnea Index (NREM, Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnoa35
Central Apnea Index (NREM, Non-Supine): (Central apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography
Central Apnea Index (NREM, Non-Supine): (Central apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnoa5
Central Apnea Index (NREM, Non-Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type II polysomnography
Central Apnea Index (NREM, Non-Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnop5
Central Apnea Index (NREM, Non-Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in non-supine position from type II polysomnography
Central Apnea Index (NREM, Non-Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrba35
Central Apnea Index (REM, Supine): (Central apneas with >= 3% oxygen desaturation threshold or with arousal) / hour of REM sleep in supine position from type II polysomnography
Central Apnea Index (REM, Supine): (Central apneas with >= 3% oxygen desaturation threshold or with arousal) / hour of REM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrba5
Central Apnea Index (REM, Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of REM sleep in supine position from type II polysomnography
Central Apnea Index (REM, Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of REM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrbp5
Central Apnea Index (REM, Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep in supine position from type II polysomnography
Central Apnea Index (REM, Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardroa35
Central Apnea Index (REM, Non-Supine): (Central apneas with >= 3% oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type II polysomnography
Central Apnea Index (REM, Non-Supine): (Central apneas with >= 3% oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardroa5
Central Apnea Index (REM, Non-Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of REM sleep in non-supine position from type II polysomnography
Central Apnea Index (REM, Non-Supine): (Central apneas with no oxygen desaturation threshold used only with arousal) / hour of REM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrop5
Central Apnea Index (REM, Non-Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep in non-supine position from type II polysomnography
Central Apnea Index (REM, Non-Supine): (Central apneas with no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hunrbp5
Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type II polysomnography
Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hunrbpa35
Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type II polysomnography
Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hunrbpa5
Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used or with arousal) / hour of NREM sleep in supine position from type II polysomnography
Hypopnea Index (NREM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used or with arousal) / hour of NREM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hunrop5
Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in non-supine position from type II polysomnography
Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hunropa35
Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography
Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hunropa5
Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography
Hypopnea Index (NREM, Non-Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hurbp25
Hypopnea Index (REM, Supine): (Hypopneas with > 50% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type II polysomnography
Hypopnea Index (REM, Supine): (Hypopneas with > 50% flow reduction and >= 2% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hurbp5
Hypopnea Index (REM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep in supine position from type II polysomnography
Hypopnea Index (REM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hurbpa35
Hypopnea Index (REM, Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type II polysomnography
Hypopnea Index (REM, Supine): (Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hurbpa5
Hypopnea Index (REM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used or with arousal) / hour of REM sleep in supine position from type II polysomnography
Hypopnea Index (REM, Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used or with arousal) / hour of REM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hurop5
Hypopnea Index (REM, Non-Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep in non-supine position from type II polysomnography
Hypopnea Index (REM, Non-Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used and with or without arousal) / hour of REM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
huropa35
Hypopnea Index (REM, Non-Supine): (Hypopneas with > 50% flow reduction and >= 3%oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type II polysomnography
Hypopnea Index (REM, Non-Supine): (Hypopneas with > 50% flow reduction and >= 3%oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
huropa5
Hypopnea Index (REM, Non-Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used or with arousal) / hour of REM sleep in non-supine position from type II polysomnography
Hypopnea Index (REM, Non-Supine): (Hypopneas with > 50% flow reduction and no oxygen desaturation threshold used or with arousal) / hour of REM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi3_nrem5
Obstructive Apnea Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep from type II polysomnography
Obstructive Apnea Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi3_nsup5
Obstructive Apnea Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep in non-supine position from type II polysomnography
Obstructive Apnea Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep in non-supine position from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi3pa5
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi3pa_nrem5
Obstructive Apnea Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of NREM sleep from type II polysomnography
Obstructive Apnea Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of NREM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi3pa_nsup5
Obstructive Apnea Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep in non-supine position from type II polysomnography
Obstructive Apnea Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi3pa_rem5
Obstructive Apnea Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of REM sleep from type II polysomnography
Obstructive Apnea Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of REM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi3pa_sup5
Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep in supine position from type II polysomnography
Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi3_rem5
Obstructive Apnea Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of REM sleep from type II polysomnography
Obstructive Apnea Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of REM sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi3_sup5
Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep in supine position from type II polysomnography
Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep in supine position from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi45
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi4_nrem5
Obstructive Apnea Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep from type II polysomnography
Obstructive Apnea Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi4_nsup5
Obstructive Apnea Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep in non-supine position from type II polysomnography
Obstructive Apnea Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep in non-supine position from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi4pa5
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Obstructive Apnea Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi4pa_nrem5
Obstructive Apnea Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of NREM sleep from type II polysomnography
Obstructive Apnea Hypopnea Index (NREM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of NREM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi4pa_nsup5
Obstructive Apnea Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in non-supine position from type II polysomnography
Obstructive Apnea Hypopnea Index (Non-Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi4pa_rem5
Obstructive Apnea Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of REM sleep from type II polysomnography
Obstructive Apnea Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of REM sleep from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi4pa_sup5
Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in supine position from type II polysomnography
Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi4_rem5
Obstructive Apnea Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of REM sleep from type II polysomnography
Obstructive Apnea Hypopnea Index (REM): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of REM sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oahi4_sup5
Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep in supine position from type II polysomnography
Obstructive Apnea Hypopnea Index (Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation and with or without arousal) / hour of sleep in supine position from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai0p5
Obstructive Apnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography
Obstructive Apnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oai4p5
Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography
Obstructive Apnea Index: (Obstructive apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

Calculated - Summary metric of sleep disordered breathing events

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oardnba35
Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type II polysomnography
Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oardnba5
Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography
Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oardnbp5
Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type II polysomnography
Obstructive Apnea Index (NREM, Supine): (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
oardnoa35
Obstructive Apnea Index (NREM, Non-Supine): (Obstructive apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography
Obstructive Apnea Index (NREM, Non-Supine): (Obstructive apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type II polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices