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Missing values in shhs1-dataset-0.7.0.cs

Reply by alexandertataraidze on November 25, 2015 on Forum

... it as AHI = cai4p + oahi. cai4p - https://sleepdata.org/datasets/shhs/variables/cai4p, oahi - ... values and 1398 unknown cai4p values. They are defined ... oanop ) / slpprdp, cai4p = 60 * ( ...

Missing values in shhs1-dataset-0.7.0.cs

Reply by mrueschman on November 25, 2015 on Forum

... understand the missingness in cai4p and oahi. These variables ... an educated guess that cai4p was filtered by chestqual ... missing values, like the cai4p variable you are working ...

Central Apnea Index : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography

cai4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CFS variables

Calculated - Summary metric of sleep disordered breathing events.

Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

cai4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SOF variables

Calculated - Summary metric of sleep disordered breathing events

Central Apnea Index: (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type II polysomnography

cai4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in SHHS variables

Calculated - Summary metric of sleep disordered breathing events

Central Apnea Index : (Central apneas with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography

cai4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables

[(Total number of central apneas associated with >= 4% desaturations) / (hours of sleep)]