duration - Search - Sleep Data - National Sleep Research Resource

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

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.

Minimum heart rate during estimated sleep duration from type IV home sleep apnea test

slpa111 under Sleep Monitoring/Polysomnography/Heart Rate 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)

Maximum heart rate during estimated sleep duration from type IV home sleep apnea test

slpa112 under Sleep Monitoring/Polysomnography/Heart Rate 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)

Average heart rate over estimated sleep duration from type IV home sleep apnea test

slpa113 under Sleep Monitoring/Polysomnography/Heart Rate 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)

Standard deviation of heart rate over estimated sleep duration from type IV home sleep apnea test

slpa114 under Sleep Monitoring/Polysomnography/Heart Rate 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)

Average oxygen saturation over estimated sleep duration from type IV home sleep apnea test

slpa92 under Sleep Monitoring/Polysomnography/Oxygen Saturation 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)

Percentage of total estimated sleep duration with < 75% oxygen saturation from type IV home sleep apnea test

slpa100 under Sleep Monitoring/Polysomnography/Sleep Architecture 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)

Percentage of total estimated sleep duration with < 70% oxygen saturation from type IV home sleep apnea test

slpa101 under Sleep Monitoring/Polysomnography/Sleep Architecture 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)

Percentage of total estimated sleep duration with < 95% oxygen saturation from type IV home sleep apnea test

slpa96 under Sleep Monitoring/Polysomnography/Sleep Architecture 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)

Percentage of total estimated sleep duration with < 90% oxygen saturation from type IV home sleep apnea test

slpa97 under Sleep Monitoring/Polysomnography/Sleep Architecture 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).

Percentage of total estimated sleep duration with < 85% oxygen saturation from type IV home sleep apnea test

slpa98 under Sleep Monitoring/Polysomnography/Sleep Architecture 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).

Percentage of total estimated sleep duration with < 80% oxygen saturation from type IV home sleep apnea test

slpa99 under Sleep Monitoring/Polysomnography/Sleep Architecture 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)

Average sleep duration (hours)

slpdur under Sleep Questionnaires/Sleep Habits in HCHS variables

This is a numeric variable that calculates the average daily sleep duration during an entire week (five weekdays and two weekend days), using self-reported sleep data.

Weekday sleep duration (hours)

slpdur_wkday under Sleep Questionnaires/Sleep Habits in HCHS variables

This is a numeric variable that calculates the self-reported sleep duration during weekdays.

Weekend sleep duration (hours)

slpdur_wkend under Sleep Questionnaires/Sleep Habits in HCHS variables

This is a numeric variable that calculates the self-reported sleep duration during weekend days.

Self-reported daily sleep duration in main sleep

totsleep under Sleep Questionnaires/Sleep Habits in WSC variables

Calculated - Weighted average of weekday and weekend self-reported sleep duration in main sleeps

Self-reported daily sleep duration in main sleep and naps combined

totsleepnap under Sleep Questionnaires/Sleep Habits in WSC variables

Calculated - Weighted average of weekday and weekend self-reported sleep duration in main sleeps and naps combined

publications.md

Multi-Ethnic Study of Atherosclerosis

... S. Association of sleep duration and quality with alterations ... sleep apnea and sleep duration with peripheral artery disease: ... D concentration and sleep duration and continuity: Multi-ethnic study ...

6-626-mop-rules-for-assigning-sleep-stages.md

Sleep Heart Health Study

... each of several seconds duration, usually most prominent during ... μV), slow (0.5-2 Hz; duration 0.5-2 sec) activity occupy ... which are 0.5-2 Hz (duration 0.5-2 sec) and have ...

6-627-mop-scoring-respiratory-events.md

Sleep Heart Health Study

... still unclear, the event duration will be marked using ... 6e, 6f, and 6g). Duration criteria: The beginning of ... beginning of the event. Duration is based on a ...

CHAT Dataset v0.2.0 released!

Reply by michaelmorrical on September 22, 2015 on Forum

... and both show a "duration of data record" of ... seeing as the stated duration in the data records? ... are free from this duration bug. ~michael ...