Related Variables
| nsrr_ahi_hp4r |
Apnea-Hypopnea Index : (All apneas + hypopneas with >= 4% oxygen desaturation or with arousal) / hour of sleep
Harmonized by the NSRR team. Refer to the source for detailed definition for respiratory events: :ahi_a0h4a: at Visit 8 |
Harmonized/Polysomnography/Apnea-Hypopnea Indices | |
| canbp | Number of central apnea (Non-rapid eye movement sleep (NREM), supine, all oxygen desaturations) | Polysomnography (PSG)/Respiratory Events/Apnea/Central | |
| canop | Number of central apnea (Non-rapid eye movement sleep (NREM), non-supine, all oxygen desaturations) | Polysomnography (PSG)/Respiratory Events/Apnea/Central | |
| carbp | Number of central apnea (Rapid eye movement sleep (REM), supine, all oxygen desaturations) | Polysomnography (PSG)/Respiratory Events/Apnea/Central | |
| carop | Number of central apnea (Rapid eye movement sleep (REM), non-supine, all oxygen desaturations) | Polysomnography (PSG)/Respiratory Events/Apnea/Central | |
| oanbp | Number of obstructive apnea (Non-rapid eye movement sleep (NREM), supine, all oxygen desaturations) | Polysomnography (PSG)/Respiratory Events/Apnea/Obstructive | |
| oanop | Number of obstructive apnea (Non-rapid eye movement sleep (NREM), non-supine, all oxygen desaturations) | Polysomnography (PSG)/Respiratory Events/Apnea/Obstructive | |
| oarbp | Number of obstructive apnea (Rapid eye movement sleep (REM), supine, all oxygen desaturations) | Polysomnography (PSG)/Respiratory Events/Apnea/Obstructive | |
| oarop | Number of obstructive apnea (Rapid eye movement sleep (REM), non-supine, all oxygen desaturations) | Polysomnography (PSG)/Respiratory Events/Apnea/Obstructive | |
| hnrba4 | Number of hypopnea with >= 4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), supine) | Polysomnography (PSG)/Respiratory Events/Hypopnea | |
| hnroa4 | Number of hypopnea with >= 4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), non-supine) | Polysomnography (PSG)/Respiratory Events/Hypopnea | |
| hremba4 | Number of hypopnea with >= 4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), supine) | Polysomnography (PSG)/Respiratory Events/Hypopnea | |
| hroa4 | Number of hypopnea with >= 4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), non-supine) | Polysomnography (PSG)/Respiratory Events/Hypopnea | |
| slpprdp | Total sleep time | Polysomnography (PSG)/Sleep Architecture |