Related Variables
co2dur |
Hours of usable carbon dioxide
Hours of usable carbon dioxide signal - requires use of calibrated channel type with upper and lower limits for valid signal |
Sleep/Polysomnography/Capnography | |
abdodur | Hours of usable abdominal effort | Sleep/Polysomnography/Signal Quality | |
abnoreeg |
Abnormal EEG background / waveforms
1=Unusual Occurrences - Abnormal EEG |
Sleep/Polysomnography/Signal Quality | |
airdur | Hours of usable airflow | Sleep/Polysomnography/Signal Quality | |
alpdel |
Physiologic alpha intrusion
1=Unusual Occurrences - Alpha intrusion |
Sleep/Polysomnography/Signal Quality | |
artifact |
Total artifact time (Unscorable)
Total minutes of unscorable (artifact) data |
Sleep/Polysomnography/Signal Quality | |
arunrel |
Scoring arousals unreliable
1=Arousals unreliable |
Sleep/Polysomnography/Signal Quality | |
c3dur | Hours of usable C3 | Sleep/Polysomnography/Signal Quality | |
c4dur | Hours of usable C4 | Sleep/Polysomnography/Signal Quality | |
candur | Hours of usable cannula | Sleep/Polysomnography/Signal Quality | |
capdur |
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/Signal Quality | |
chestdur | Hours of usable chest effort | Sleep/Polysomnography/Signal Quality | |
chindur | Hours of usable chin | Sleep/Polysomnography/Signal Quality | |
eogldur | Hours of usable EOG L | Sleep/Polysomnography/Signal Quality | |
eogrdur | Hours of usable EOG R | Sleep/Polysomnography/Signal Quality | |
f3dur | Hours of usable F3 | Sleep/Polysomnography/Signal Quality | |
f4dur | Hours of usable F4 | Sleep/Polysomnography/Signal Quality | |
hrdur | Hours of usable heart rate | Sleep/Polysomnography/Signal Quality | |
legldur |
Hours of usable legL
Hours of usable L leg |
Sleep/Polysomnography/Signal Quality | |
legrdur |
Hours of usable legR
Hours of usable R leg |
Sleep/Polysomnography/Signal Quality | |
losbeg |
Data lost - recording begain in sleep
1=data lost - loss at beginning of study |
Sleep/Polysomnography/Signal Quality | |
m1dur | Hours of usable M1 | Sleep/Polysomnography/Signal Quality | |
m2dur | hours of usable M2 | Sleep/Polysomnography/Signal Quality | |
o1dur | Hours of usable O1 | Sleep/Polysomnography/Signal Quality | |
o2dur | Hours of usable O2 | Sleep/Polysomnography/Signal Quality | |
otherou |
Other outlier
1=Outlier - other |
Sleep/Polysomnography/Signal Quality | |
overall | Overall study grade | Sleep/Polysomnography/Signal Quality | |
oximdur | Hours of usable oximetry | Sleep/Polysomnography/Signal Quality | |
period |
Periodic breathing >= 10 minutes
1=unusual occurrences - periodic breathing > 5 minutes |
Sleep/Polysomnography/Signal Quality | |
psndur |
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 EDF only numbers |
Sleep/Polysomnography/Signal Quality | |
pwfdur |
Hours of usable PWF
Hours of usable pleth wave form |
Sleep/Polysomnography/Signal Quality | |
quabdo | Quality of abdominal effort | Sleep/Polysomnography/Signal Quality | |
quair | Quality of airflow | Sleep/Polysomnography/Signal Quality | |
quc3 |
Quality of C3
Quality of EEG |
Sleep/Polysomnography/Signal Quality | |
quc4 |
Quality of C4
Quality of EEG |
Sleep/Polysomnography/Signal Quality | |
qucan | Quality of cannula | Sleep/Polysomnography/Signal Quality | |
qucap |
Quality of cap
*need to define quality scoring |
Sleep/Polysomnography/Signal Quality | |
quchest | Quality of chest effort | Sleep/Polysomnography/Signal Quality | |
quchin | Quality of chin | Sleep/Polysomnography/Signal Quality | |
quco2 |
Quality of carbon dioxide
*need to define quality scoring |
Sleep/Polysomnography/Signal Quality | |
queogl | Quality of EOG L | Sleep/Polysomnography/Signal Quality | |
queogr | Quality of EOG R | Sleep/Polysomnography/Signal Quality | |
quf3 |
Quality of F3
Quality of EEG |
Sleep/Polysomnography/Signal Quality | |
quf4 |
Quality of F4
Quality of EEG |
Sleep/Polysomnography/Signal Quality | |
quhr | Quality of hr | Sleep/Polysomnography/Signal Quality | |
qulegl |
Quality of LegL
Quality of L Leg |
Sleep/Polysomnography/Signal Quality | |
qulegr |
Quality of LegR
Quality of R Leg |
Sleep/Polysomnography/Signal Quality | |
qum1 |
Quality of M1
Quality of EEG |
Sleep/Polysomnography/Signal Quality | |
qum2 |
Quality of M2
Quality of EEG |
Sleep/Polysomnography/Signal Quality | |
quo1 |
Quality of O1
Quality of EEG |
Sleep/Polysomnography/Signal Quality | |
quo2 |
Quality of O2
Quality of EEG |
Sleep/Polysomnography/Signal Quality | |
quoxim | Quality of oximetry | Sleep/Polysomnography/Signal Quality | |
qupsn |
Quality of position
*position for all non-compumedics data hand scored from notes from site tech |
Sleep/Polysomnography/Signal Quality | |
qupwf | Quality of pleth wave form | Sleep/Polysomnography/Signal Quality | |
quref | Quality of reference | Sleep/Polysomnography/Signal Quality | |
qusnor |
Quality of snore
Quality of snore mic |
Sleep/Polysomnography/Signal Quality | |
qusum |
Quality of SUM
Quality of SUM channel |
Sleep/Polysomnography/Signal Quality | |
qut3 | Quality of T3 | Sleep/Polysomnography/Signal Quality | |
qut4 | Quality of T4 | Sleep/Polysomnography/Signal Quality | |
recbeaw |
Data lost - recording ended before waking
1=data Lost - recording ended before wake |
Sleep/Polysomnography/Signal Quality | |
remarunrel |
Scoring arousals in REM (only) unreliable
1=arousals in rem unreliable |
Sleep/Polysomnography/Signal Quality | |
slewake |
Study scored sleep wake = 1 all sleep scored stage 2
1=Study scored sleep wake |
Sleep/Polysomnography/Signal Quality | |
snordur |
Hours of usable snore
Hours of usable snore mic |
Sleep/Polysomnography/Signal Quality | |
stg1stg2pr |
Scoring stage1/ stage 2 unreliable
1=Sleep staging problem - scoring stage1/stage2 unreliable |
Sleep/Polysomnography/Signal Quality | |
stg2stg3pr |
Scoring stage2/ deep sleep unreliable
1=sleep staging problem - scoring stage2/stage3-4 unreliable |
Sleep/Polysomnography/Signal Quality | |
sumdur |
Hours of usable SUM
Hours of usable SUM channel |
Sleep/Polysomnography/Signal Quality | |
t3dur |
Hours of usable T3
Hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
t4dur |
Hours of usable T4
Hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
wakslepr |
Scoring stage wake/sleep unreliable
1=Sleep staging problem - scoring wake/sleep unreliable |
Sleep/Polysomnography/Signal Quality |