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Childhood Adenotonsillectomy Trial

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  1. chat
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  3. Sleep Monitoring
  4. Polysomnography
  5. Administrative Apnea-Hypopnea Indices Arousals Capnography Cyclic Alternating Pattern Evening and Morning Survey Heart Rate Limb Movements Oxygen Saturation Respiratory Event Counts Respiratory Event Lengths Signal Quality Sleep Architecture Sound Events Thoraco-abdominal Asynchrony
Name Label Folder
longhyp
Maximum duration of hypopnea from type I polysomnography
Maximum duration of hypopnea from type I polysomnography

(entire recording)

 		Sleep Monitoring/Polysomnography/Respiratory Event Lengths
oavgdur
Average duration of obstructive apnea from type I polysomnography
Average duration of obstructive apnea from type I polysomnography

duration (entire recording)

 		Sleep Monitoring/Polysomnography/Respiratory Event Lengths
ahilt2
Obstructive Apnea Index (OAI) < 1 and Apnea-Hypopnea Index (AHI) < 2 (normal range) = 1 Ineligible Normal
Obstructive Apnea Index (OAI) < 1 and Apnea-Hypopnea Index (AHI) < 2 (normal range) = 1 Ineligible Normal Sleep Monitoring/Polysomnography/Signal Quality
capdur
Hours of usable cap
Hours of usable cap

Hours of usable cap signal - requires use of calibrated channel type with upper and lower limits for valid signal

 		Sleep Monitoring/Polysomnography/Signal Quality
eliginelig
Eligibility status by Polysomnography (PSG)
Eligibility status by Polysomnography (PSG)

Ineligible if omahi3 <2 and omai0p<1 or meets any of urgent criteria variables ahiov30=1, saO2lt90=1, unuhrou=1,unuhroth=1

 		Sleep Monitoring/Polysomnography/Signal Quality
overall
Overall study grade
Overall study grade Sleep Monitoring/Polysomnography/Signal Quality
oximdur
Hours of usable oximetry
Hours of usable oximetry Sleep Monitoring/Polysomnography/Signal Quality
posn
Position sensor working
Position sensor working Sleep Monitoring/Polysomnography/Signal Quality
qucap
Quality of cap
Quality of cap

usable mainly artifact free signal

 		Sleep Monitoring/Polysomnography/Signal Quality
quco2
Quality of carbon dioxide (CO2)
Quality of carbon dioxide (CO2) Sleep Monitoring/Polysomnography/Signal Quality
quoxim
Quality of oximetry
Quality of oximetry Sleep Monitoring/Polysomnography/Signal Quality
stdydt
Date of study
Date of study Sleep Monitoring/Polysomnography/Signal Quality
nremepbp
Total duration of sleep in NREM sleep in supine position from type I polysomnography
Total duration of sleep in NREM sleep in supine position from type I polysomnography Sleep Monitoring/Polysomnography/Sleep Architecture
nremepop
Total duration of sleep in NREM sleep in non-supine position from type I polysomnography
Total duration of sleep in NREM sleep in non-supine position from type I polysomnography Sleep Monitoring/Polysomnography/Sleep Architecture
nsupinep
Percentage duration of sleep in non-supine position from type I polysomnography
Percentage duration of sleep in non-supine position from type I polysomnography

[100*(number of minutes of sleep in non-supine body position) / (Total Sleep Time (TST))]

 		Sleep Monitoring/Polysomnography/Sleep Architecture
pcstah3d
Percentage duration of sleep associated with apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal from type I polysomnography
Percentage duration of sleep associated with apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Sleep Architecture
pcstahar
Percentage of total sleep duration: (Apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and no oxygen desaturation and only with arousal) from type I polysomnography
Percentage of total sleep duration: (Apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and no oxygen desaturation and only with arousal) from type I polysomnography Sleep Monitoring/Polysomnography/Sleep Architecture
pcstahda
Percentage duration of sleep associated with apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation and with or without arousal from type I polysomnography
Percentage duration of sleep associated with apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 3% oxygen desaturation and with or without arousal from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the American Academy of Sleep Medicine (AASM) 2007 Manual (pediatric). [Iber C et al. The AASM manual for the scoring of sleep and associated events: rules, terminology and technical specifications. Vol. 1. Westchester, IL: American Academy of Sleep Medicine, 2007]

Search for all AHI variables consistent with the clinical guidelines within this dataset

 		Sleep Monitoring/Polysomnography/Sleep Architecture
remepbp
Total duration of sleep in REM sleep in supine position from type I polysomnography
Total duration of sleep in REM sleep in supine position from type I polysomnography

Total time in rapid eye movement sleep (REM) with supine body position

 		Sleep Monitoring/Polysomnography/Sleep Architecture
remepop
Total duration of sleep in REM sleep in non-supine position from type I polysomnography
Total duration of sleep in REM sleep in non-supine position from type I polysomnography

Total time in rapid eye movement sleep (REM) with non-supine body position

 		Sleep Monitoring/Polysomnography/Sleep Architecture
slplatp
Sleep Latency: the interval between lights-out/in-bed time and sleep onset time from type I polysomnography
Sleep Latency: the interval between lights-out/in-bed time and sleep onset time from type I polysomnography Sleep Monitoring/Polysomnography/Sleep Architecture
slpprdp
Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type I polysomnography
Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type I polysomnography

Conventionally, this would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater).

 		Sleep Monitoring/Polysomnography/Sleep Architecture
supinep
Percentage duration of sleep in supine position from type I polysomnography
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
timebedp
Total period of bed (in-bed) from type I polysomnography
Total period of bed (in-bed) from type I polysomnography

Time from lights out to lights on

 		Sleep Monitoring/Polysomnography/Sleep Architecture
timerem
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
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

Total time scored as rapid eye movement sleep (REM)

 		Sleep Monitoring/Polysomnography/Sleep Architecture
timeremp
Percentage of REM sleep among total sleep duration from type I polysomnography
Percentage of REM sleep among total sleep duration from type I polysomnography

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

Percent of sleep time in rapid eye movement sleep (REM) [100*(number of minutes scored as rapid eye movement sleep (REM)) / (Total Sleep Time (TST))] * 100

 		Sleep Monitoring/Polysomnography/Sleep Architecture
times34p
Percentage duration of sleep in stage 3/4 sleep from type I polysomnography
Percentage duration of sleep in stage 3/4 sleep from type I polysomnography

Percent of sleep time in stage 3-4 [100*(number of minutes scored as stage 3-4) / (Total Sleep Time (TST))]

 		Sleep Monitoring/Polysomnography/Sleep Architecture
timest1
Total duration of sleep in stage 1 sleep from type I polysomnography
Total duration of sleep in stage 1 sleep from type I polysomnography

Total time scored as stage 1 rounded to nearest minute

 		Sleep Monitoring/Polysomnography/Sleep Architecture
timest1p
Percentage of stage 1 sleep among total sleep duration from type I polysomnography
Percentage of stage 1 sleep among total sleep duration from type I polysomnography

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

Percent of sleep time in stage 1 [100*(number of minutes scored as stage 1) / (Total Sleep Time (TST))]

 		Sleep Monitoring/Polysomnography/Sleep Architecture
timest2
Total duration of sleep in stage 2 sleep from type I polysomnography
Total duration of sleep in stage 2 sleep from type I polysomnography

Total time scored as stage 2 rounded to nearest minute

 		Sleep Monitoring/Polysomnography/Sleep Architecture
timest2p
Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Percentage of stage 2 sleep among total sleep duration from type I polysomnography

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

Percent of sleep time in stage 2 [100*(number of minutes scored as stage 2) / (Total Sleep Time (TST))]

 		Sleep Monitoring/Polysomnography/Sleep Architecture
timest34
Total duration of sleep in stage 3/4 sleep from type I polysomnography
Total duration of sleep in stage 3/4 sleep from type I polysomnography

Total time scored as stage 3/4 rounded to nearest minute

 		Sleep Monitoring/Polysomnography/Sleep Architecture
waso
Wake After Sleep Onset: the total duration between sleep onset and lights-on/out-bed time while being awake from type I polysomnography
Wake After Sleep Onset: the total duration between sleep onset and lights-on/out-bed time while being awake from type I polysomnography

Total amount of time spent awake after going to sleep [(time in bed) - (sleep latency) - (Total Sleep Time (TST))]

 		Sleep Monitoring/Polysomnography/Sleep Architecture
haspaperwork
Paperwork received at reading center
Paperwork received at reading center Sleep Monitoring/Polysomnography/Administrative
hipriscore
Flagged for priority scoring
Flagged for priority scoring Sleep Monitoring/Polysomnography/Administrative
month
Calendar month of Polysomnography (PSG)
Calendar month of Polysomnography (PSG) Sleep Monitoring/Polysomnography/Administrative
scoreridr
Recoded Scorer ID
Recoded Scorer ID Sleep Monitoring/Polysomnography/Administrative
season
Season for Polysomnography (PSG): Aug-Nov vs. All the other
Season for Polysomnography (PSG): Aug-Nov vs. All the other Sleep Monitoring/Polysomnography/Administrative
stdatep
Start date
Start date

Study date (date recording started)

 		Sleep Monitoring/Polysomnography/Administrative
stdurm
Study length (epoch 1 to last epoch)
Study length (epoch 1 to last epoch)

Time from recording beginning to end, rounded to nearest minute

 		Sleep Monitoring/Polysomnography/Administrative
cai4p
Central Apnea Index : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography
Central Apnea Index : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography

[(Total number of central apneas associated with >= 4% desaturations) / (hours of sleep)]

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cai4pa
Central Apnea Index : (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
Central Apnea Index : (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography

[(Total number of central apneas with >= 4% desaturation or arousal) / (hours of sleep)]

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnba2
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 2% oxygen desaturation or with arousal from type I polysomnography
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 2% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnba3
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 3% oxygen desaturation or with arousal from type I polysomnography
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 3% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnba4
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 4% oxygen desaturation or with arousal from type I polysomnography
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 4% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnba5
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 5% oxygen desaturation or with arousal from type I polysomnography
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 5% oxygen desaturation or with arousal from type I polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnbp
Total number of central apnea in NREM sleep in supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography
Total number of central apnea in NREM sleep in supine position: Central apneas with no oxygen desaturation threshold used and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnbp2
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 2% oxygen desaturation and with or without arousal from type I polysomnography
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 2% oxygen desaturation and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnbp3
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 3% oxygen desaturation and with or without arousal from type I polysomnography
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 3% oxygen desaturation and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnbp4
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 4% oxygen desaturation and with or without arousal from type I polysomnography
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 4% oxygen desaturation and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnbp5
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 5% oxygen desaturation and with or without arousal from type I polysomnography
Total number of central apnea in NREM sleep in supine position: Central apneas with >= 5% oxygen desaturation and with or without arousal from type I polysomnography Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnoa
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 I 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 I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnoa2
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnoa3
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 I 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 I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnoa4
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnoa5
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnop
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 I 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 I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnop2
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnop3
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnop4
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardnop5
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Central Apnea Index (NREM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrba
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 I 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 I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrba2
Central Apnea Index (REM, Supine) : (Central apneas with >= 2% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type I polysomnography
Central Apnea Index (REM, Supine) : (Central apneas with >= 2% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrba3
Central Apnea Index (REM, Supine) : (Central apneas with >= 3% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type I polysomnography
Central Apnea Index (REM, Supine) : (Central apneas with >= 3% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrba4
Central Apnea Index (REM, Supine) : (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type I polysomnography
Central Apnea Index (REM, Supine) : (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrba5
Central Apnea Index (REM, Supine) : (Central apneas with >= 5% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type I polysomnography
Central Apnea Index (REM, Supine) : (Central apneas with >= 5% oxygen desaturation or with arousal) / hour of REM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrbp
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 I 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 I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrbp2
Central Apnea Index (REM, Supine) : (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type I polysomnography
Central Apnea Index (REM, Supine) : (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrbp3
Central Apnea Index (REM, Supine) : (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type I polysomnography
Central Apnea Index (REM, Supine) : (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrbp4
Central Apnea Index (REM, Supine) : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type I polysomnography
Central Apnea Index (REM, Supine) : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrbp5
Central Apnea Index (REM, Supine) : (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type I polysomnography
Central Apnea Index (REM, Supine) : (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of REM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardroa
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 I 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 I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardroa2
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type I polysomnography
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardroa3
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 I 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 I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardroa4
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type I polysomnography
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardroa5
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type I polysomnography
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation or with arousal) / hour of REM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrop
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 I 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 I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrop2
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of REM sleep in non-supine position from type I polysomnography
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 2% oxygen desaturation and with or without arousal) / hour of REM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrop3
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of REM sleep in non-supine position from type I polysomnography
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 3% oxygen desaturation and with or without arousal) / hour of REM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrop4
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of REM sleep in non-supine position from type I polysomnography
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of REM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
cardrop5
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of REM sleep in non-supine position from type I polysomnography
Central Apnea Index (REM, Non-Supine) : (Central apneas with >= 5% oxygen desaturation and with or without arousal) / hour of REM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hi
Hypopnea Index: Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with arousal / hour of sleep from type I polysomnography
Hypopnea Index: Hypopneas with > 50% flow reduction and >= 3% oxygen desaturation or with 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 American Academy of Sleep Medicine (AASM) 2007 Manual (pediatric). [Iber C et al. The AASM manual for the scoring of sleep and associated events: rules, terminology and technical specifications. Vol. 1. Westchester, IL: American Academy of Sleep Medicine, 2007]

Search for all AHI variables consistent with the clinical guidelines within this dataset

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbp
Mixed Apnea Index (NREM, Supine): (Mixed apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with no oxygen desaturation threshold used and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbp2
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 2% oxygen desaturation and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 2% oxygen desaturation and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbp3
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbp4
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbp5
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 5% oxygen desaturation and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 5% oxygen desaturation and with or without arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbpa
Mixed Apnea Index (NREM, Supine): (Mixed apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbpa2
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbpa3
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbpa4
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrbpa5
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 5% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography
Mixed Apnea Index (NREM, Supine): (Mixed apneas with >= 5% oxygen desaturation or with arousal) / hour of NREM sleep in supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrop2
Mixed Apnea Index (NREM, Non-Supine)): (Mixed apneas with >= 2% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Mixed Apnea Index (NREM, Non-Supine)): (Mixed apneas with >= 2% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrop3
Mixed Apnea Index (NREM, Non-Supine)): (Mixed apneas with >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Mixed Apnea Index (NREM, Non-Supine)): (Mixed apneas with >= 3% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrop4
Mixed Apnea Index (NREM, Non-Supine)): (Mixed apneas with >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Mixed Apnea Index (NREM, Non-Supine)): (Mixed apneas with >= 4% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanrop5
Mixed Apnea Index (NREM, Non-Supine)): (Mixed apneas with >= 5% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Mixed Apnea Index (NREM, Non-Supine)): (Mixed apneas with >= 5% oxygen desaturation and with or without arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanropa
Mixed Apnea Index (NREM, Non-Supine): (Mixed apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Mixed Apnea Index (NREM, Non-Supine): (Mixed apneas with no oxygen desaturation threshold used only with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanropa2
Mixed Apnea Index (NREM, Non-Supine): (Mixed apneas with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Mixed Apnea Index (NREM, Non-Supine): (Mixed apneas with >= 2% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanropa3
Mixed Apnea Index (NREM, Non-Supine): (Mixed apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Mixed Apnea Index (NREM, Non-Supine): (Mixed apneas with >= 3% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
hmanropa4
Mixed Apnea Index (NREM, Non-Supine): (Mixed apneas with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography
Mixed Apnea Index (NREM, Non-Supine): (Mixed apneas with >= 4% oxygen desaturation or with arousal) / hour of NREM sleep in non-supine position from type I polysomnography

Calculated - Summary metric of sleep disordered breathing events.

 		Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
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