Related Variables
| other | Sleep Diary: list of other medications taken day of study | Lab Visit/Physiology | |
| ahi_a0h4 | Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of 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 | 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 | Polysomnography/Respiratory Events/Indexes | |
| oahi | Obstructive Apnea Hypopnea Index (OAHI) at 4% oxygen desaturation | Polysomnography/Respiratory Events/Indexes | |
| rdi4p |
Overall 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 |
Polysomnography/Respiratory Events/Indexes | |
| rdi4pns | Overall RDI (non-Supine) at 4% oxygen desaturation | Polysomnography/Respiratory Events/Indexes | |
| rdirem4p | Overall RDI (REM) at 4% oxygen desaturation | Polysomnography/Respiratory Events/Indexes |