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: "v8bmi: at Visit 8	Harmonized/Anthropometry
nsrr_bp_diastolic Diastolic blood pressure	Diastolic blood pressure Resting diastolic blood pressure from the upper arm. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: v8lbpdia at Visit 8	Harmonized/Clinical Data
nsrr_bp_systolic Systolic blood pressure	Systolic blood pressure Resting systolic blood pressure collected from the upper arm. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: v8lbpsys at Visit 8	Harmonized/Clinical Data
nsrr_age Subject age	Subject age Participant ages greater than 89 have been recoded into 90 for de-identification purposes. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: v8age at Visit 8	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 All ages greater than 89 have been recoded to 90. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: v8age at Visit 8	Harmonized/Demographics
nsrr_race Subject race	Subject race Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: race at Visit 8	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_current_smoker Currently smoking cigarettes	Currently smoking cigarettes Indicates whether subject currently smokes cigarettes. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: v8smok at Visit 8	Harmonized/Lifestyle and Behavioral Health
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	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
nsrr_ahi_hp3u Apnea-Hypopnea Index: (All apneas + hypopneas with >= 3% oxygen desaturation) / hour of sleep	Apnea-Hypopnea Index: (All apneas + hypopneas with >= 3% oxygen desaturation) / hour of sleep Harmonized by the NSRR team. Refer to the source for detailed definition for respiratory events: ahi_a0h3 at Visit 8	Harmonized/Polysomnography/Apnea-Hypopnea Indices
nsrr_ahi_hp4r Apnea-Hypopnea Index: (All apneas + hypopneas with >= 4% oxygen desaturation or with arousal) / hour of sleep	Apnea-Hypopnea Index: (All apneas + hypopneas with >= 4% oxygen desaturation or with arousal) / hour of sleep Harmonized by the NSRR team. Refer to the source for detailed definition for respiratory events: ahi_a0h4a at Visit 8	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 sleep	Apnea-Hypopnea Index: (All apneas + hypopneas with >=30% nasal cannula [or alternative sensor] reduction with >= 4% oxygen desaturation) / hour of 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.]. Refer to the source for detailed definition for respiratory events: ahi_a0h4 at Visit 8	Harmonized/Polysomnography/Apnea-Hypopnea Indices
nsrr_phrnumar_f1 Arousal Index: Number of arousals per hour of sleep from polysomnography	Arousal Index: Number of arousals per hour of sleep from polysomnography Harmonized by the NSRR team. Source: ai_all at Visit 8	Harmonized/Polysomnography/Arousal
nsrr_flag_spsw Study scored sleep/wake rather than with full sleep staging if there is not sufficient quality on EEG lead. Studies scored as sleep wake have all sleep stages scored using a default of Stage 2 and no arousals are scored.	Study scored sleep/wake rather than with full sleep staging if there is not sufficient quality on EEG lead. Studies scored as sleep wake have all sleep stages scored using a default of Stage 2 and no arousals are scored. Harmonized by the NSRR team. Source: slewake at Visit 8	Harmonized/Polysomnography/Signal Quality
nsrr_pctdursp_s1 Percentage of total sleep duration (i.e., total sleep time, TST) in stage 1 (N1) from polysomnography	Percentage of total sleep duration (i.e., total sleep time, TST) in stage 1 (N1) from polysomnography Harmonized by the NSRR team. Source: tmstg1p at Visit 8	Harmonized/Polysomnography/Sleep Architecture
nsrr_pctdursp_s2 Percentage of total sleep duration (i.e., total sleep time, TST) in stage 2 (N2) from polysomnography	Percentage of total sleep duration (i.e., total sleep time, TST) in stage 2 (N2) from polysomnography Harmonized by the NSRR team. Source: tmstg2p at Visit 8	Harmonized/Polysomnography/Sleep Architecture
nsrr_pctdursp_s3 Percentage of total sleep duration (i.e., total sleep time, TST) in stage 3/4 (N3) from polysomnography	Percentage of total sleep duration (i.e., total sleep time, TST) in stage 3/4 (N3) from polysomnography Harmonized by the NSRR team. Source: tmstg34p at Visit 8	Harmonized/Polysomnography/Sleep Architecture
nsrr_pctdursp_sr Percentage of total sleep duration (i.e., total sleep time, TST) in REM from polysomnography	Percentage of total sleep duration (i.e., total sleep time, TST) in REM from polysomnography Harmonized by the NSRR team. Source: tmremp at Visit 8	Harmonized/Polysomnography/Sleep Architecture
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. Source: slpprdp at Visit 8	Harmonized/Polysomnography/Sleep Architecture
nsrr_ttldursp_s1s4 REM Sleep Latency: the interval between the first sleep epoch and REM sleep excluding wake	REM Sleep Latency: the interval between the first sleep epoch and REM sleep excluding wake Harmonized by the NSRR team. Source: remlaiip at Visit 8	Harmonized/Polysomnography/Sleep Architecture
nsrr_ttleffsp_f1 Sleep Efficiency: the ratio of sleep duration (i.e., total sleep time, TST) to in-bed period frompolysomnography	Sleep Efficiency: the ratio of sleep duration (i.e., total sleep time, TST) to in-bed period frompolysomnography Harmonized by the NSRR team. Source: slp_eff at Visit 8	Harmonized/Polysomnography/Sleep Architecture
nsrr_ttllatsp_f1 Sleep Latency: the interval between lights-out/in-bed time and sleep onset time from polysomnography	Sleep Latency: the interval between lights-out/in-bed time and sleep onset time from polysomnography Harmonized by the NSRR team. Source: slplatp at Visit 8	Harmonized/Polysomnography/Sleep Architecture
nsrr_ttlprdbd_f1 Total period of bed (i.e., time in bed) from polysomnography	Total period of bed (i.e., time in bed) from polysomnography Harmonized by the NSRR team. Source: timebedp at Visit 8	Harmonized/Polysomnography/Sleep Architecture
nsrr_ttlprdsp_s1sr REM Sleep Latency: the interval between the first sleep epoch and REM sleep including wake	REM Sleep Latency: the interval between the first sleep epoch and REM sleep including wake Harmonized by the NSRR team. Source: remlaip at Visit 8	Harmonized/Polysomnography/Sleep Architecture

Study of Osteoporotic Fractures