Related Variables
nsrr_ahi_ap4u |
Apnea-Hypopnea Index : (Apneas and hypopneas with >= 50% nasal cannula [or alternative sensor] reduction with >= 4% oxygen desaturation) / hour of estimated sleep
Harmonized by the NSRR team. |
Harmonized/Polysomnography/Apnea-Hypopnea Indices |