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Childhood Adenotonsillectomy Trial

Name Label Folder
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/Polysomnography (PSG)/Signal Quality
overall
Overall study grade
Overall study grade Sleep/Polysomnography (PSG)/Signal Quality
oximdur
Hours of usable oximetry
Hours of usable oximetry Sleep/Polysomnography (PSG)/Signal Quality
qucap
Quality of cap
Quality of cap

usable mainly artifact free signal

Sleep/Polysomnography (PSG)/Signal Quality
quco2
Quality of carbon dioxide (CO2)
Quality of carbon dioxide (CO2) Sleep/Polysomnography (PSG)/Signal Quality
quoxim
Quality of oximetry
Quality of oximetry Sleep/Polysomnography (PSG)/Signal Quality
abdodur
Hours of usable abdominal effort
Hours of usable abdominal effort Sleep/Polysomnography (PSG)/Signal Quality
abnoreeg
Abnormal EEG background / waveforms
Abnormal EEG background / waveforms

1=Unusual Occurrences - Abnormal EEG

Sleep/Polysomnography (PSG)/Signal Quality
airdur
Hours of usable airflow
Hours of usable airflow Sleep/Polysomnography (PSG)/Signal Quality
alpdel
Physiologic alpha intrusion
Physiologic alpha intrusion

1=Unusual Occurrences - Alpha intrusion

Sleep/Polysomnography (PSG)/Signal Quality
artifact
Total artifact time (Unscorable)
Total artifact time (Unscorable)

Total minutes of unscorable (artifact) data

Sleep/Polysomnography (PSG)/Signal Quality
arunrel
Scoring arousals unreliable
Scoring arousals unreliable

1=Arousals unreliable (when the technical quality of the study does not allow one to distinguish discrete increases in EEG frequency from background changes in EEG. EEG still may be of sufficient quality to score stages. Studies with the physiological alpha intrusion will have arousals scored regardless of difficulty)

Sleep/Polysomnography (PSG)/Signal Quality
c3dur
Hours of usable C3
Hours of usable C3 Sleep/Polysomnography (PSG)/Signal Quality
c4dur
Hours of usable C4
Hours of usable C4 Sleep/Polysomnography (PSG)/Signal Quality
candur
Hours of usable cannula
Hours of usable cannula Sleep/Polysomnography (PSG)/Signal Quality
chestdur
Hours of usable chest effort
Hours of usable chest effort Sleep/Polysomnography (PSG)/Signal Quality
chindur
Hours of usable chin
Hours of usable chin Sleep/Polysomnography (PSG)/Signal Quality
eogldur
Hours of usable EOG L
Hours of usable EOG L Sleep/Polysomnography (PSG)/Signal Quality
eogrdur
Hours of usable EOG R
Hours of usable EOG R Sleep/Polysomnography (PSG)/Signal Quality
f3dur
Hours of usable F3
Hours of usable F3 Sleep/Polysomnography (PSG)/Signal Quality
f4dur
Hours of usable F4
Hours of usable F4 Sleep/Polysomnography (PSG)/Signal Quality
hrdur
Hours of usable heart rate
Hours of usable heart rate Sleep/Polysomnography (PSG)/Signal Quality
legldur
Hours of usable legL
Hours of usable legL Sleep/Polysomnography (PSG)/Signal Quality
legrdur
Hours of usable legR
Hours of usable legR Sleep/Polysomnography (PSG)/Signal Quality
losbeg
Data lost - recording begain in sleep
Data lost - recording begain in sleep

1=data lost - loss at beginning of study

Sleep/Polysomnography (PSG)/Signal Quality
m1dur
Hours of usable M1
Hours of usable M1 Sleep/Polysomnography (PSG)/Signal Quality
m2dur
hours of usable M2
hours of usable M2 Sleep/Polysomnography (PSG)/Signal Quality
o1dur
Hours of usable O1
Hours of usable O1 Sleep/Polysomnography (PSG)/Signal Quality
o2dur
Hours of usable O2
Hours of usable O2 Sleep/Polysomnography (PSG)/Signal Quality
otherou
Other outlier
Other outlier

1=Outlier - other

Sleep/Polysomnography (PSG)/Signal Quality
period
Periodic breathing >= 10 minutes
Periodic breathing >= 10 minutes

1=unusual occurrences - periodic breathing > 5 minutes

Sleep/Polysomnography (PSG)/Signal Quality
psndur
Hours of usable position
Hours of usable position

*All non-compumedics collected studies have position hand scored by scorer from notes supplied by site / none of position signals transfer in European Data Format (EDF) only numbers

Sleep/Polysomnography (PSG)/Signal Quality
pwfdur
Hours of usable pleth wave form
Hours of usable pleth wave form Sleep/Polysomnography (PSG)/Signal Quality
quabdo
Quality of abdominal effort
Quality of abdominal effort Sleep/Polysomnography (PSG)/Signal Quality
quair
Quality of airflow
Quality of airflow Sleep/Polysomnography (PSG)/Signal Quality
quc3
Quality of C3
Quality of C3

Quality of EEG

Sleep/Polysomnography (PSG)/Signal Quality
quc4
Quality of C4
Quality of C4

Quality of EEG

Sleep/Polysomnography (PSG)/Signal Quality
qucan
Quality of cannula
Quality of cannula Sleep/Polysomnography (PSG)/Signal Quality
quchest
Quality of chest effort
Quality of chest effort Sleep/Polysomnography (PSG)/Signal Quality
quchin
Quality of chin
Quality of chin Sleep/Polysomnography (PSG)/Signal Quality
queogl
Quality of EOG L
Quality of EOG L Sleep/Polysomnography (PSG)/Signal Quality
queogr
Quality of EOG R
Quality of EOG R Sleep/Polysomnography (PSG)/Signal Quality
quf3
Quality of F3
Quality of F3

Quality of EEG

Sleep/Polysomnography (PSG)/Signal Quality
quf4
Quality of F4
Quality of F4

Quality of EEG

Sleep/Polysomnography (PSG)/Signal Quality
quhr
Quality of hr
Quality of hr Sleep/Polysomnography (PSG)/Signal Quality
qulegl
Quality of LegL
Quality of LegL Sleep/Polysomnography (PSG)/Signal Quality
qulegr
Quality of LegR
Quality of LegR Sleep/Polysomnography (PSG)/Signal Quality
qum1
Quality of M1
Quality of M1

Quality of EEG

Sleep/Polysomnography (PSG)/Signal Quality
qum2
Quality of M2
Quality of M2

Quality of EEG

Sleep/Polysomnography (PSG)/Signal Quality
quo1
Quality of O1
Quality of O1

Quality of EEG

Sleep/Polysomnography (PSG)/Signal Quality
quo2
Quality of O2
Quality of O2

Quality of EEG

Sleep/Polysomnography (PSG)/Signal Quality
qupsn
Quality of position
Quality of position

*position for all non-compumedics data hand scored from notes from site tech

Sleep/Polysomnography (PSG)/Signal Quality
qupwf
Quality of pleth wave form
Quality of pleth wave form Sleep/Polysomnography (PSG)/Signal Quality
quref
Quality of reference
Quality of reference Sleep/Polysomnography (PSG)/Signal Quality
qusnor
Quality of snore
Quality of snore

Quality of snore microphone

Sleep/Polysomnography (PSG)/Signal Quality
qusum
Quality of SUM
Quality of SUM

Quality of SUM channel

Sleep/Polysomnography (PSG)/Signal Quality
qut3
Quality of T3
Quality of T3 Sleep/Polysomnography (PSG)/Signal Quality
qut4
Quality of T4
Quality of T4 Sleep/Polysomnography (PSG)/Signal Quality
recbeaw
Data lost - recording ended before waking
Data lost - recording ended before waking

1=data Lost - recording ended before wake

Sleep/Polysomnography (PSG)/Signal Quality
remarunrel
Scoring arousals in rapid eye movement sleep (REM) (only) unreliable
Scoring arousals in rapid eye movement sleep (REM) (only) unreliable

1=arousals in rapid eye movement sleep (REM) unreliable (when EMG is artifactual or absent during all or rapid eye movement sleep (REM) portion of the study)

Sleep/Polysomnography (PSG)/Signal Quality
slewake
Study scored sleep wake = 1, all sleep scored stage 2
Study scored sleep wake = 1, all sleep scored stage 2

1=Study scored sleep wake

Sleep/Polysomnography (PSG)/Signal Quality
snordur
Hours of usable snore
Hours of usable snore Sleep/Polysomnography (PSG)/Signal Quality
stg1stg2pr
Scoring stage1/ stage 2 unreliable
Scoring stage1/ stage 2 unreliable

1=Sleep staging problem - scoring stage1/stage2 unreliable (when K-complexes and sleep spindles do not have show their classical morphology and distinction between Stage 1 and Stage 2 is doubtful (characteristic for the studies with low voltage EEG))

Sleep/Polysomnography (PSG)/Signal Quality
stg2stg3pr
Scoring stage2/ deep sleep unreliable
Scoring stage2/ deep sleep unreliable

1=sleep staging problem - scoring stage2/stage3-4 unreliable (when distinction between Stage 2 and Deep Sleep is unreliable because of EEG artifact (usually due to the respiratory or sweat artifact on the EEG, and High Pass filter =1Hz used))

Sleep/Polysomnography (PSG)/Signal Quality
sumdur
Hours of usable SUM
Hours of usable SUM Sleep/Polysomnography (PSG)/Signal Quality
t3dur
Hours of usable T3
Hours of usable T3

Hours of usable EEG

Sleep/Polysomnography (PSG)/Signal Quality
t4dur
Hours of usable T4
Hours of usable T4

Hours of usable EEG

Sleep/Polysomnography (PSG)/Signal Quality
wakslepr
Scoring stage wake/sleep unreliable
Scoring stage wake/sleep unreliable

1=Sleep staging problem - scoring wake/sleep unreliable (when the clarity of the EEG makes distinguishing the transition unreliable)

Sleep/Polysomnography (PSG)/Signal Quality