Harmonized - BESTAIR 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 Baseline	Harmonized/Anthropometry
	nsrr_bp_diastolic Diastolic blood pressure	Diastolic blood pressure Average resting diastolic blood pressure of three measurements collected from the upper arm in a single clinic visit. In cases where either of the measurements was missing, the average was calculated discarding the missing value. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: avgseateddiastolic at Baseline	Harmonized/Clinical Data
	nsrr_bp_systolic Systolic blood pressure	Systolic blood pressure Average resting systolic blood pressure of three measurements collected from the upper arm in a single clinic visit. In cases where either of the measurements was missing, the average was calculated discarding the missing value. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: avgseatedsystolic at Baseline	Harmonized/Clinical Data
	nsrr_age Subject age	Subject age Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: age at Baseline	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 Baseline	Harmonized/Demographics
	nsrr_ethnicity Subject ethnicity	Subject ethnicity Original missing value is recoded as "not reported". Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: ethnicity	Harmonized/Demographics
	nsrr_race Subject race	Subject race Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: race	Harmonized/Demographics
	nsrr_sex Subject sex	Subject sex Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: gender	Harmonized/Demographics
	nsrr_ever_smoker Ever smoked cigarettes	Ever smoked cigarettes Indicates whether subject ever regularly smoked cigarettes.No means less than 20 packs in a lifetime or less than 1 cigarette for 1 year. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: shq_eversmoked at Baseline	Harmonized/Lifestyle and Behavioral Health
	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_primary	Harmonized/Polysomnography/Apnea-Hypopnea Indices