Related Variables

nsrr_ahi_hp3u Apnea-Hypopnea Index : (Apneas and hypopneas with >= 3% oxygen desaturation) / hour of sleep

Harmonized by the NSRR team.

Data collected with no EEGs. Refer to the source for detailed definition for respiratory events: :ahi_screening: at Baseline

Harmonized/Polysomnography/Apnea-Hypopnea Indices
aphypi Respiratory Event Index: (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep from type III 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)

Details about how the respiratory events were scored can be found in the Embletta scoring manual.

Please refer to :ahi_screening: from the baseline screening visit for a more standardized version of AHI in this study.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
aphypins Respiratory Event Index (Non-Supine): (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep in non-supine position from type III 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)

Details about how the respiratory events were scored can be found in the Embletta scoring manual.

Please refer to :ahi_screening: from the baseline screening visit for a more standardized version of AHI in this study.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
aphypis Respiratory Event Index (Supine): (All respiratory events with at least 50% flow reduction and without any oxygen desaturation threshold used) / hours of estimated sleep in supine position from type III 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)

Details about how the respiratory events were scored can be found in the Embletta scoring manual.

Please refer to :ahi_screening: from the baseline screening visit for a more standardized version of AHI in this study.

Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices