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rdirem4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CFS variables
Calculated - Summary metric of sleep disordered breathing events. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (recommended) Berry RB et al. 2012 (PubMed ID:23066376), and (2) AASM 2015 (acceptable) [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.]. Search for all AHI variables consistent with the same clinical guidelines within this dataset
psg_rdimrem4p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in PATS variables
missing if studies with problems scoring REM/NREM or if studies scored as sleep/wake or NREM sleep time is 4