Related Variables
| co2dur |
Hours of usable carbon dioxide
Hours of usable carbon dioxide signal - requires use of calibrated channel type with upper and lower limites for valid signal |
Sleep/Polysomnography/Capnography | |
| abdodur |
Hours of usable abdominal effort
Hours of usable abdomen effort |
Sleep/Polysomnography/Signal Quality | |
| abnoreeg |
Abnormal EEG background / waveforms
1=Unusual Occurrences - Abnormal EEG |
Sleep/Polysomnography/Signal Quality | |
| airdur |
Hours of usable airflow
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
Hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
| c4dur |
Hours of usable C4
Hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
| candur |
Hours of usable cannula
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
Hours of usable chest effort |
Sleep/Polysomnography/Signal Quality | |
| chindur |
Hours of usable chin
Hours of usable chin |
Sleep/Polysomnography/Signal Quality | |
| eogldur |
Hours of usable EOG L
Hours of usable EOG L |
Sleep/Polysomnography/Signal Quality | |
| eogrdur |
Hours of usable EOG R
Hours of usable EOG R |
Sleep/Polysomnography/Signal Quality | |
| f3dur |
Hours of usable F3
Hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
| f4dur |
Hours of usable F4
Hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
| hrdur |
Hours of usable heart rate
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
Hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
| m2dur |
hours of usable M2
hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
| o1dur |
Hours of usable O1
Hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
| o2dur |
Hours of usable O2
Hours of usable EEG |
Sleep/Polysomnography/Signal Quality | |
| otherou |
Other outlier
1=Outlier - other |
Sleep/Polysomnography/Signal Quality | |
| overall |
Overall study grade
Overall study grade |
Sleep/Polysomnography/Signal Quality | |
| oximdur |
Hours of usable oximetry
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
Quality of abdomen effort |
Sleep/Polysomnography/Signal Quality | |
| quair |
Quality of airflow
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
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
Quality of chest effort |
Sleep/Polysomnography/Signal Quality | |
| quchin |
Quality of chin
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
Quality of EOG L |
Sleep/Polysomnography/Signal Quality | |
| queogr |
Quality of EOG R
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
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
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
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
Quality of EEG |
Sleep/Polysomnography/Signal Quality | |
| qut4 |
Quality of T4
Quality of EEG |
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 |