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Childhood Adenotonsillectomy Trial

Name Label Folder
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/Polysomnography (PSG)/Administrative
oxitype
Oximeter type
Oximeter type

1 = Masimo, 2 = Nonin, 3 = Nonin Biologic

Sleep/Polysomnography (PSG)/Administrative
stdydt
Date of study
Date of study Sleep/Polysomnography (PSG)/Administrative
unittype
Polysomnography (PSG) unit type
Polysomnography (PSG) unit type Sleep/Polysomnography (PSG)/Administrative
haspaperwork
Paperwork received at reading center
Paperwork received at reading center Sleep/Polysomnography (PSG)/Administrative
hipriscore
Flagged for priority scoring
Flagged for priority scoring Sleep/Polysomnography (PSG)/Administrative
losoth
Data lost - other
Data lost - other

1=data lost - other

Sleep/Polysomnography (PSG)/Administrative
maxresou30
Maximum length respiratory event >30 seconds verified
Maximum length respiratory event >30 seconds verified

1=Outlier - max length respiratory event > 30 seconds verified

Sleep/Polysomnography (PSG)/Administrative
month
Calendar month of Polysomnography (PSG)
Calendar month of Polysomnography (PSG) Sleep/Polysomnography (PSG)/Administrative
npflow
Flow limitation
Flow limitation

1=flow limitation observed

Sleep/Polysomnography (PSG)/Administrative
processdt
Date data were processed
Date data were processed Sleep/Polysomnography (PSG)/Administrative
rcvddt
Date received at reading center
Date received at reading center Sleep/Polysomnography (PSG)/Administrative
reviewdt
Date of preliminary review
Date of preliminary review Sleep/Polysomnography (PSG)/Administrative
rsnco
Reason for study failure
Reason for study failure Sleep/Polysomnography (PSG)/Administrative
scordt
Date scored
Date scored

Date scoring performed at reading center

Sleep/Polysomnography (PSG)/Administrative
scoredt
Scored date
Scored date

Date scored (date of birth in compumedics screen) if study reprocessed date scored changes

Sleep/Polysomnography (PSG)/Administrative
scoreridr
Recoded Scorer ID
Recoded Scorer ID Sleep/Polysomnography (PSG)/Administrative
scorid
Scorer ID
Scorer ID

ID of reading center staff who performed scoring

Sleep/Polysomnography (PSG)/Administrative
season
Season for Polysomnography (PSG): Aug-Nov vs. All the other
Season for Polysomnography (PSG): Aug-Nov vs. All the other Sleep/Polysomnography (PSG)/Administrative
slpprdm
Sleep period
Sleep period

Total sleep period (minutes) = Total Sleep Time (TST) + total time awake, includes time spent awake after lights on and therefore is not correct (not used in final dataset)

Sleep/Polysomnography (PSG)/Administrative
staendt
Week ending date
Week ending date Sleep/Polysomnography (PSG)/Administrative
status
Pass fail status (passed=1 failed=2)
Pass fail status (passed=1 failed=2) Sleep/Polysomnography (PSG)/Administrative
stdatep
Start date
Start date

Study date (date recording started)

Sleep/Polysomnography (PSG)/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/Polysomnography (PSG)/Administrative
stlonp
Lights on set by scorer
Lights on set by scorer

Lights on time - end of in-bed period set by scorer

Sleep/Polysomnography (PSG)/Administrative
unuhroth
Urgent - other heart rate arrhythmia, heart block, v-tach, etc. = 1 urgent ineligible
Urgent - other heart rate arrhythmia, heart block, v-tach, etc. = 1 urgent ineligible Sleep/Polysomnography (PSG)/Administrative
unuhrou
Urgent - problem heart rate < 40 bpm or > 140 bpm > 2 minutes = 1 urgent ineligible
Urgent - problem heart rate < 40 bpm or > 140 bpm > 2 minutes = 1 urgent ineligible

1=Medical alert for unusual heart rate or electrocardiogram (ECG)

Sleep/Polysomnography (PSG)/Administrative
unustgou
Extreme staging distribution
Extreme staging distribution

1=outlier - unusual staging

Sleep/Polysomnography (PSG)/Administrative