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ttlnumca_po_ca3n_f1t3 under Sleep Monitoring/Polysomnography/Respiratory Event Counts in NUMOM2B variables
rdi3p under Sleep Monitoring/Polysomnography/Sleep Architecture in CCSHS variables
[(total number of apneas and hypopneas associated with >= 3% oxygen desaturation) / (hours of sleep)]
rdim3pns under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables
[(total number of apneas and hypopneas in non-supine body position associated with >= 3% desaturation) / (hours of sleep)]. will be missing if no time non-supine or low position sensor quality.
rdimnr3p under Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices in CHAT variables
[(total number of apneas and hypopneas in non-rapid eye movement sleep (NREM) associated with >= 3% desaturation) / (hours of non-rapid eye movement sleep (NREM))]