ahi_a0h3 ahi_a0h4

Related Variables

nsrr_ahi_hp3r_aasm15 Apnea-Hypopnea Index : (All apneas + hypopneas with >=30% nasal cannula [or alternative sensor] reduction and >= 3% oxygen desaturation or with arousal) / hour of sleep

Harmonized by the NSRR team.

The definition for hypopneas is consistent with the following clinical guidelines: (1) American Academy of Sleep Medicine (AASM) 2007 Manual (2012 update) (recommended). Berry RB et al. 2012 (PubMed ID:23066376), and (2) American Academy of Sleep Medicine (AASM) 2015 (recommended) [Berry RB et al. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications, Version 2.2. American Academy of Sleep Medicine, Darien, IL, 2015.]

Refer to the source for detailed definition for respiratory events: :ahi_a0h3a: 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
hnrba3 Number of hypopnea with >= 3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), supine) Polysomnography (PSG)/Respiratory Events/Hypopnea
hnroa3 Number of hypopnea with >= 3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), non-supine) Polysomnography (PSG)/Respiratory Events/Hypopnea
hremba3 Number of hypopnea with >= 3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), supine) Polysomnography (PSG)/Respiratory Events/Hypopnea
hroa3 Number of hypopnea with >= 3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), non-supine) Polysomnography (PSG)/Respiratory Events/Hypopnea
slpprdp Total sleep time Polysomnography (PSG)/Sleep Architecture