We use cookies and other tools to enhance your experience on our website and to analyze our web traffic.
For more information about these cookies and the data collected, please refer to our Privacy Policy.

Best Apnea Interventions in Research

Name Label Folder
ahi_primary
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test

Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (alternative) Berry RB et al. 2012 (PubMed ID:23066376), and (2) AASM 2015 (acceptable) [Berry RB et al. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, Version 2.2. American Academy of Sleep Medicine, Darien, IL, 2015.].

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
slp_eff
Sleep Efficiency: the proportion of estimated sleep duration in in-bed period from type III home sleep test
Sleep Efficiency: the proportion of estimated sleep duration in in-bed period from type III home sleep test

Estimated sleep duration, providing an approximation of total sleep duration (i.e. total sleep time) inferred from analysis of non-EEG channels Zhao et al., 2017 (PMID:27707441) In-bed period is the interval between lights off/in-bed time and lights on/out-bed time. Conventionally, this variable could be described as the ratio between total sleep time (TST) and time in bed (TIB).

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 III home sleep test
Wake After Sleep Onset: the total duration between sleep onset and lights-on/out-bed time while being awake from type III home sleep test Sleep Monitoring/Polysomnography/Sleep Architecture
ahi_primary_source
Read source of Apnea-Hypopnea Index (AHI)
Read source of Apnea-Hypopnea Index (AHI) Sleep Monitoring/Polysomnography/Administrative
embqs_analysis_start
Analysis start time
Analysis start time Sleep Monitoring/Polysomnography/Administrative
embqs_analysis_stop
Analysis stop time
Analysis stop time Sleep Monitoring/Polysomnography/Administrative
embqs_total_recording_time
Total recording time
Total recording time Sleep Monitoring/Polysomnography/Administrative
embqs_abdomen_qcode
Abdomen signal quality code
Abdomen signal quality code Sleep Monitoring/Polysomnography/Signal Quality
embqs_abdomen_signal
Abdomen hours of useable signal
Abdomen hours of useable signal Sleep Monitoring/Polysomnography/Signal Quality
embqs_cannula_flow_qcode
Cannula flow/pressure signal quality code
Cannula flow/pressure signal quality code Sleep Monitoring/Polysomnography/Signal Quality
embqs_cannula_flow_signal
Cannula flow/pressure hours of useable signal
Cannula flow/pressure hours of useable signal Sleep Monitoring/Polysomnography/Signal Quality
embqs_ekg_qcode
EKG signal quality code
EKG signal quality code Sleep Monitoring/Polysomnography/Signal Quality
embqs_ekg_signal
EKG hours of useable signal
EKG hours of useable signal Sleep Monitoring/Polysomnography/Signal Quality
embqs_flow_qcode
Flow signal quality code
Flow signal quality code Sleep Monitoring/Polysomnography/Signal Quality
embqs_flow_signal
Flow hours of useable signal
Flow hours of useable signal Sleep Monitoring/Polysomnography/Signal Quality
embqs_overall_quality
Overall study quality
Overall study quality Sleep Monitoring/Polysomnography/Signal Quality
embqs_oximetry_qcode
Oximetry signal quality code
Oximetry signal quality code Sleep Monitoring/Polysomnography/Signal Quality
embqs_oximetry_signal
Oximetry hours of useable signal
Oximetry hours of useable signal Sleep Monitoring/Polysomnography/Signal Quality
embqs_thoracic_qcode
Thoracic signal quality code
Thoracic signal quality code Sleep Monitoring/Polysomnography/Signal Quality
embqs_thoracic_signal
Thoracic hours of useable signal
Thoracic hours of useable signal Sleep Monitoring/Polysomnography/Signal Quality