Related Variables
| ahi_a0h3 | Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >=3% oxygen desaturation] per hour of sleep | Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| ahi_a0h3a | Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >=3% oxygen desaturation or arousal] per hour of sleep | Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| ahi_a0h4 | Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >=4% oxygen desaturation] per hour of sleep | Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| ahi_a0h4a | Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >=4% oxygen desaturation or arousal] per hour of sleep | Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| ahi_c0h3 | Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >=3% oxygen desaturation] per hour of sleep | Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| ahi_c0h3a | Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >=3% oxygen desaturation or arousal] per hour of sleep | Sleep/Polysomnography (PSG)/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 (PSG)/Respiratory Events/Indexes | |
| ahi_c0h4a | Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >=4% oxygen desaturation or arousal] per hour of sleep | Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| cai0p |
Central apnea index all desaturations
[(Total number of central apneas associated with all desaturations) / (hours of sleep)]. Will be missing if Total Sleep Time (TST) is 0. |
Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| cent_obs_ratio | Central/Obstructive Apnea ratio at all desaturations | Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| rdim0p |
Overall Respiratory Disturbance Index (RDI) at 0% desaturation
[(total number of apneas and hypopneas) / (hours of sleep)] |
Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| rdim0pns |
Overall non-supine Respiratory Disturbance Index (RDI) at 0% desaturation
Non-supine Respiratory Disturbance Index (RDI) at all desaturations [(total number of apneas and hypopneas in non-supine body position) / (hours of sleep)] |
Sleep/Polysomnography (PSG)/Respiratory Events/Indexes | |
| rdimrem0p |
Overall rapid eye movement sleep (REM) Respiratory Disturbance Index (RDI) at 0% desaturation
[(total number of apneas and hypopneas in rapid eye movement sleep (REM)) / (hours of rapid eye movement sleep (REM))] |
Sleep/Polysomnography (PSG)/Respiratory Events/Indexes |