Related Variables
| ahi_a0h4 | Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >=4% oxygen desaturation] per hour of sleep | Sleep/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 | Sleep/Polysomnography/Respiratory Events/Indexes | |
| ahi_o0h4 | Obstructive Apnea-Hypopnea Index (AHI) >= 4% - number of [obstructive apneas] and [hypopneas with >=4% oxygen desaturation] per hour of sleep | Sleep/Polysomnography/Respiratory Events/Indexes | |
| oahi4 |
Obstructive apnea hypopnea (>=4% desaturation) index
{[(total number of obstructive apneas) + (total number of hypopneas associated with >= 4% desaturation)] / (hours of sleep)} |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim4p |
Overall Respiratory Disturbance Index (RDI) at >=4% desaturation
[(total number of apneas and hypopneas associated with >= 4% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdim4pns |
Overall non-supine Respiratory Disturbance Index (RDI) at >=4% desaturation
[(total number of apneas and hypopneas in non-supine body position associated with >= 4% desaturation) / (hours of sleep)] |
Sleep/Polysomnography/Respiratory Events/Indexes | |
| rdimrem4p |
Overall rapid eye movement sleep (REM) Respiratory Disturbance Index (RDI) at >=4% desaturation
[(total number of apneas and hypopneas in rapid eye movement sleep (REM) associated with >= 4% desaturation) / (hours of rapid eye movement sleep (REM))] |
Sleep/Polysomnography/Respiratory Events/Indexes |