Related Variables

slpa38 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

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.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
slpa47 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

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.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
slpa56 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

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.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
slpa65 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

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.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices