Related Variables
| ahi_a0h4 | Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep | Measurements/Polysomnography/Respiratory Events/Indexes | |
| ahi_c0h4 | Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep | Measurements/Polysomnography/Respiratory Events/Indexes | |
| oahi |
Obstructive Apnea-Hypopnea Index (OAHI) at >=4% oxygen desaturation
Obstructive apnea (all desaturations) hypopnea (>=4% desaturation) index |
Measurements/Polysomnography/Respiratory Events/Indexes | |
| rdi4p |
Overall Respiratory Disturbance Index (RDI) at >=4% oxygen desaturation
Ratio of the count of all apneas (central and obstructive) and hypopneas associated with at least a >=4% oxygen desaturation to the total sleep time expressed in hours |
Measurements/Polysomnography/Respiratory Events/Indexes | |
| rdi4ps | Overall Respiratory Disturbance Index (RDI) (Supine) at >=4% oxygen desaturation | Measurements/Polysomnography/Respiratory Events/Indexes | |
| rdinr4p | Overall Respiratory Disturbance Index (RDI) (Non-rapid eye movement sleep (NREM)) at >=4% oxygen desaturation | Measurements/Polysomnography/Respiratory Events/Indexes |