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Total number of periodic limb movements in stage 1 sleep with respiratory event from type I polysomnography
plmrstg1 under Sleep Monitoring/Polysomnography/Limb Movements in CFS variables
Total PLMs with respiratory events stage 1 sleep
Total number of periodic limb movements in stage 2 sleep with respiratory event from type I polysomnography
plmrstg2 under Sleep Monitoring/Polysomnography/Limb Movements in CFS variables
Total PLMs with respiratory events stage 2 sleep
Average oxygen desaturation: Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and with no oxygen desaturation used and with or without arousal from type I polysomnography
avgdsevent under Sleep Monitoring/Polysomnography/Oxygen Saturation in CFS variables
Average desaturation associated with manually scored respiratory events and respiratory events
PSG Quality Assessment: Long respiratory events verified
maxresou under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables
If a respiratory event greater than 150 seconds in duration was observed, scorer has verified that this value is real.
PSG Quality Assessment: Respiratory scoring problems
respevpr under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables
Due to signal problems, scorer noted that there was a problem scoring respiratory events.
Total number of all respiratory events associated with a desaturation of which the nadir is > 90% oxygen saturation from type III home sleep apnea test
event90s under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HEARTBEAT variables
Percentage of central apneas among all respiratory events from type III home sleep apnea test
pca under Sleep Monitoring/Polysomnography/Respiratory Event Counts in HEARTBEAT variables
Respiratory Event Index : (Apneas or hypopneas with >= 3% oxygen desaturation) / hour of estimated sleep
nsrr_rei_ap3n under Harmonized/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
Harmonized by the NSRR team.Data collected with no EEGs. Refer to the source for detailed definition for respiratory events: :slpa54: at Visit 1
Respiratory Event Index : (Apneas or hypopneas with>= 4% oxygen desaturation) / hour of estimated sleep
nsrr_rei_ap4n under Harmonized/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
Harmonized by the NSRR team.Data collected with no EEGs. Refer to the source for detailed definition for respiratory events: :slpa63: at Visit 1
Respiratory Event Index: (Apneas with no oxygen desaturation threshold used + hypopneas with > 50% flow reduction and no oxygen desaturation threshold used) / hours of artifact-free estimated sleep from type IV home sleep apnea test
slpa36 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa30: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index (Non-Supine): (Apneas with no oxygen desaturation threshold used + hypopneas with > 50% flow reduction and no oxygen desaturation threshold used) / hours of artifact-free estimated sleep in non-supine position from type IV home sleep apnea test
slpa37 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa32: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index (Supine): (Apneas with no oxygen desaturation threshold used + hypopneas with > 50% flow reduction and no oxygen desaturation threshold used) / hours of artifact-free estimated sleep in supine position from type IV home sleep apnea test
slpa38 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa34: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index: (Apneas with >= 1% oxygen desaturation + hypopneas with > 50% flow reduction and >= 1% oxygen desaturation) / hours of artifact-free estimated sleep from type IV home sleep apnea test
slpa45 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa30: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index (Non-Supine): (Apneas with >= 1% oxygen desaturation + hypopneas with > 50% flow reduction and >= 1% oxygen desaturation) / hours of artifact-free estimated sleep in non-supine position from type IV home sleep apnea test
slpa46 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa32: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index (Supine): (Apneas with >= 1% oxygen desaturation + hypopneas with > 50% flow reduction and >= 1% oxygen desaturation) / hours of artifact-free estimated sleep in supine position from type IV home sleep apnea test
slpa47 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa34: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index: (Apneas with >= 3% oxygen desaturation + hypopneas with > 50% flow reduction and >= 3% oxygen desaturation) / hours of artifact-free estimated sleep from type IV home sleep apnea test
slpa54 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa30: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index (Non-Supine): (Apneas with >= 3% oxygen desaturation + hypopneas with > 50% flow reduction and >= 3% oxygen desaturation) / hours of artifact-free estimated sleep in non-supine position from type IV home sleep apnea test
slpa55 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa32: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index (Supine): (Apneas with >= 3% oxygen desaturation + hypopneas with > 50% flow reduction and >= 3% oxygen desaturation) / hours of artifact-free estimated sleep in supine position from type IV home sleep apnea test
slpa56 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa34: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index: (Apneas with >= 4% oxygen desaturation + hypopneas with > 50% flow reduction and >= 4% oxygen desaturation) / hours of artifact-free estimated sleep from type IV home sleep apnea test
slpa63 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa30: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index (Non-Supine): (Apneas with >= 4% oxygen desaturation + hypopneas with > 50% flow reduction and >= 4% oxygen desaturation) / hours of artifact-free estimated sleep in non-supine position from type IV home sleep apnea test
slpa64 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa32: for the valid estimated sleep duration used to calculate this index.
Respiratory Event Index (Supine): (Apneas with >= 4% oxygen desaturation + hypopneas with > 50% flow reduction and >= 4% oxygen desaturation) / hours of artifact-free estimated sleep in supine position from type IV home sleep apnea test
slpa65 under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in HCHS variables
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. Please refer to :slpa34: for the valid estimated sleep duration used to calculate this index.
Polysomnography (PSG) Quality Assessment: Long respiratory events verified
maxresou under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables
If a respiratory event greater than 150 seconds (s) in duration was observed, scorer has verified that this value is real.
Polysomnography (PSG) Quality Assessment: Respiratory Disturbance Index (RDI)=0 real
rdi0ou under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables
If Respiratory Disturbance Index (RDI) = 0, scorer has verified that this value is real.
Polysomnography (PSG) Quality Assessment: Respiratory scoring problems
respevpr under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables
Due to signal problems, scorer noted that there was a problem scoring respiratory events.
Quality of the abdominal signal
abdoqual under Sleep Monitoring/Polysomnography/Signal Quality/SHHS1 in SHHS variables
Sleep Hearth Health Study Visit 1 (SHHS1)-Vary from 1 (poorest) to 4 (best) and reflect the proportion of time the signals were useable. Useable respiratory data is defined as the number of hours that abnormal breaths can be distinguished from normal breaths
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