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.

Search

montage-and-sampling-rate-information.md
Mignot Nature Communications
... -| | Airflow | flow | flow | - | 16 ... | -| | CPAP Flow | pap_flow | pap_flow ...
Percent change in flow volume
pctchg_flow under Clinical Data/Diagnostic Studies/Lung Function/Brachial Reactivity in CFS variables
Flow signal quality code
embqs_flow_qcode under Sleep Monitoring/Polysomnography/Signal Quality in BESTAIR variables
Flow hours of useable signal
embqs_flow_signal under Sleep Monitoring/Polysomnography/Signal Quality in BESTAIR variables
montage-and-sampling-rate-information.md
Apnea, Bariatric surgery, and CPAP study
... cannula | | CPAP Flow | CPAP Flow | CPAP Flow | - | 32 ...
montage-and-sampling-rate-information.md
Best Apnea Interventions in Research
... - | | | Flow | Flow | Flow | - | 50 ...
README.md
Apnea Positive Pressure Long-term Efficacy Study
... abdominal respiratory effort during flow cessation. ### Neurocognitive Testing ... + hypopneas with >50% flow reduction or discernible flow reduction with ≥ 3% ...
Publications
... automatic scoring of inspiratory flow limitation within a range ... Hoc Committee on Inspiratory Flow Limitation. (2017). An official ... noninvasive identification of inspiratory flow limitation in sleep studies. ...
Cannula flow/pressure signal quality code
embqs_cannula_flow_qcode under Sleep Monitoring/Polysomnography/Signal Quality in BESTAIR variables
Cannula flow/pressure hours of useable signal
embqs_cannula_flow_signal under Sleep Monitoring/Polysomnography/Signal Quality in BESTAIR variables
Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used, hypopneas with 30%-50% flow reduction and with >= 4% oxygen desaturation, and hypopneas with > 50% flow reduction with >= 3% oxygen desaturation) / hour of estimated sleep from type III home sleep apnea test
ahi_ap0nhp3x5x4nhp5x3n_f1t3 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in NUMOM2B variables
Calculated - Summary metric of sleep disordered breathing events.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)
Total Number of Apnea and Hypopnea: Apneas with no oxygen desaturation threshold used + hypopneas with > 50% flow reduction and no oxygen desaturation threshold used during artifact-free estimated sleep from type IV home sleep apnea test
slpa39 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas (Non-Supine): Apneas with no oxygen desaturation threshold used + hypopneas with > 50% flow reduction and no oxygen desaturation threshold used during artifact-free estimated sleep in non-supine position from type IV home sleep apnea test
slpa40 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas (Supine): Apneas with no oxygen desaturation threshold used + hypopneas with > 50% flow reduction and no oxygen desaturation threshold used during artifact-free estimated sleep in supine position from type IV home sleep apnea test
slpa41 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas: Apneas with >= 1% oxygen desaturation + hypopneas with > 50% flow reduction and >= 1% oxygen desaturation during artifact-free estimated sleep from type IV home sleep apnea test
slpa48 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas (Non-Supine): Apneas with >= 1% oxygen desaturation + hypopneas with > 50% flow reduction and >= 1% oxygen desaturation during artifact-free estimated sleep in non-supine position from type IV home sleep apnea test
slpa49 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas (Supine): Apneas with >= 1% oxygen desaturation + hypopneas with > 50% flow reduction and >= 1% oxygen desaturation during artifact-free estimated sleep in supine position from type IV home sleep apnea test
slpa50 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas: Apneas with >= 3% oxygen desaturation + hypopneas with > 50% flow reduction and >= 3% oxygen desaturation during artifact-free estimated sleep from type IV home sleep apnea test
slpa57 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas (Non-Supine): Apneas with >= 3% oxygen desaturation + hypopneas with > 50% flow reduction and >= 3% oxygen desaturation during artifact-free estimated sleep in non-supine position from type IV home sleep apnea test
slpa58 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas (Supine): Apneas with >= 3% oxygen desaturation + hypopneas with > 50% flow reduction and >= 3% oxygen desaturation during artifact-free estimated sleep in supine position from type IV home sleep apnea test
slpa59 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas: Apneas with >= 4% oxygen desaturation + hypopneas with > 50% flow reduction and >= 4% oxygen desaturation during artifact-free estimated sleep from type IV home sleep apnea test
slpa66 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas (Non-Supine): Apneas with >= 4% oxygen desaturation + hypopneas with > 50% flow reduction and >= 4% oxygen desaturation during artifact-free estimated sleep in non-supine position from type IV home sleep apnea test
slpa67 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Number of Apneas and Hypopneas (Supine): Apneas with >= 4% oxygen desaturation + hypopneas with > 50% flow reduction and >= 4% oxygen desaturation during artifact-free estimated sleep in supine position from type IV home sleep apnea test
slpa68 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.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) Any continuous periods of >=20 min with loss of respiratory channel was marked as wake and not included in the estimates.
Total Duration of Apnea and Hypopnea: Apneas with no oxygen desaturation threshold used+ hypopneas with > 50% flow reduction and no oxygen desaturation threshold used during artifact-free estimated sleep from type IV home sleep apnea test
slpa42 under Sleep Monitoring/Polysomnography/Sleep Architecture in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.
Total Duration of Apnea and Hypopnea (Non-Supine): Apneas with no oxygen desaturation threshold used + hypopneas with > 50% flow reduction and no oxygen desaturation threshold used during artifact-free estimated sleep in non-supine position from type IV home sleep apnea test
slpa43 under Sleep Monitoring/Polysomnography/Sleep Architecture in HCHS variables
Apnea and hypopnea events were not distinguished as separate event types during scoring. Both were classified as a respiratory event that required a 50% reduction in Nasal Flow signal for at least 10 seconds.
© 2024
NSRR
National Sleep Research Resource
Privacy
Contact Us | Funded By NHLBI