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Central Apnea-Hypopnea Index : (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
ahi_c0h4a
under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in
CFS variables
Calculated - Summary metric of sleep disordered breathing events.
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
ahi_c0h4a
under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in
SOF variables
Calculated - Summary metric of sleep disordered breathing events.
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
ahi_c0h4a
under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in
SHHS variables
Calculated - Summary metric of sleep disordered breathing events.
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type I polysomnography
ahi_c0h4a
under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in
CCSHS variables
Calculated - Summary metric of sleep disordered breathing events.
Central Apnea-Hypopnea Index : (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 50% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography
ahi_c0h4a
under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in
CHAT variables
Calculated - Summary metric of sleep disordered breathing events.
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
ahi_c0h4a
under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in
MESA variables
Calculated - Summary metric of sleep disordered breathing events.
Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type I polysomnography
cahi_ca0uhp3x4r_f1t1
under Sleep Monitoring/Polysomnography in
ABC variables
Calculated - Summary metric of sleep disordered breathing events.
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