Related Variables
| oai4p | Obstructive Apnea Index 4% oxygen desaturation | Measurements/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 |
Measurements/Polysomnography/Respiratory Events/Indexes | |
| rdi4pns | Overall RDI (non-Supine) at 4% oxygen desaturation | Measurements/Polysomnography/Respiratory Events/Indexes | |
| rdinr4p | Overall RDI (NREM) at 4% oxygen desaturation | Measurements/Polysomnography/Respiratory Events/Indexes |