Harmonized - NUMOM2B Variables - Sleep Data - National Sleep Research Resource - NSRR

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	Name	Label	Folder
	nsrr_bmi Body mass index (BMI)	Body mass index (BMI) Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: bmi at Visit 1	Harmonized/Anthropometry
	nsrr_age Subject age	Subject age Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: age_at_stdydt at Visit 1	Harmonized/Demographics
	nsrr_age_gt89 Indicates whether the subject's age (in years) used during date obfuscation is greater than 89 years	Indicates whether the subject's age (in years) used during date obfuscation is greater than 89 years Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: age_at_stdydt at Visit 1	Harmonized/Demographics
	nsrr_ethnicity Subject ethnicity	Subject ethnicity Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: crace	Harmonized/Demographics
	nsrr_race Subject race	Subject race Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: crace	Harmonized/Demographics
	nsrr_sex Subject sex	Subject sex All participants are females. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards.	Harmonized/Demographics
	nsrr_ahi_hp3u Apnea-Hypopnea Index : (All apneas + hypopneas with >= 3% oxygen desaturation) / hour of estimated sleep	Apnea-Hypopnea Index : (All apneas + hypopneas with >= 3% oxygen desaturation) / hour of estimated sleep Harmonized by the NSRR team. Data collected with no EEGs. Refer to the source for detailed definition for respiratory events: ahi_ap0nhp3x3n_f1t3	Harmonized/Polysomnography/Apnea-Hypopnea Indices
	nsrr_ahi_hp4u_aasm15 Apnea-Hypopnea Index : (All apneas + hypopneas with >=30% nasal cannula [or alternative sensor] reduction with >= 4% oxygen desaturation) / hour of estimated sleep	Apnea-Hypopnea Index : (All apneas + hypopneas with >=30% nasal cannula [or alternative sensor] reduction with >= 4% oxygen desaturation) / hour of estimated sleep Harmonized by the NSRR team. The definition of hypopnea events is consistent with the following clinical guidelines: (1) AASM 2012 update (alternative) 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.]. Data collected with no EEGs. Refer to the source for detailed definition for respiratory events: ahi_ap0nhp3x4n_f1t3	Harmonized/Polysomnography/Apnea-Hypopnea Indices
	nsrr_ttldursp_f1 Total sleep duration: the interval between sleep onset and sleep offset while the participant is asleep from polysomnography	Total sleep duration: the interval between sleep onset and sleep offset while the participant is asleep from polysomnography Conventionally, this would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater). Harmonized by the NSRR team. Data collected with no EEGs. Source: ttldursp_f1t3	Harmonized/Polysomnography/Sleep Architecture