CCSHS Variables - Sleep Data - National Sleep Research Resource - NSRR

We use cookies and other tools to enhance your experience on our website and to analyze our web traffic.
For more information about these cookies and the data collected, please refer to our Privacy Policy.

	Name	Label	Folder
	nsrrid NSRR Subject Identifer	NSRR Subject Identifer This participant ID was created by the National Sleep Research Resource (NSRR) team to more easily match with file downloads.	Administrative
	visit Visit	Visit	Administrative
	bmi Body Mass Index (BMI)	Body Mass Index (BMI)	Anthropometry
	htcm Height	Height	Anthropometry
	waistcm Waist circumference	Waist circumference Mean of two measurements	Anthropometry
	wtkg Weight	Weight	Anthropometry
	bpdias Diastolic blood pressure (DBP) (mean of 6 measurements)	Diastolic blood pressure (DBP) (mean of 6 measurements) Blood pressure (BP) is collected six times, three measurements in the evening and three in the morning. This is the mean of the diastolic measurements at each time point.	Clinical Data/Vital Signs/Seated Blood Pressure
	bphr Heart Rate (mean of 6 measurements)	Heart Rate (mean of 6 measurements) Blood pressure (BP) is collected six times, three measurements in the evening and three in the morning. This is the mean of the heart rate measurements at each time point.	Clinical Data/Vital Signs/Seated Blood Pressure
	bpsys Systolic blood pressure (SBP) (mean of 6 measurements)	Systolic blood pressure (SBP) (mean of 6 measurements) Blood pressure (BP) is collected six times, three measurements in the evening and three in the morning. This is the mean of the systolic measurements at each time point.	Clinical Data/Vital Signs/Seated Blood Pressure
	age Age at time of visit	Age at time of visit	Demographics
	ethnicity Ethnicity	Ethnicity	Demographics
	male Male gender	Male gender	Demographics
	race Race	Race	Demographics
	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 3	Harmonized/Anthropometry
	nsrr_bp_diastolic Diastolic blood pressure	Diastolic blood pressure Average resting diastolic blood pressure of six measurements (three measurements in the evening and three in the morning) collected from the upper arm in a single day. 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: bpdias at Visit 3	Harmonized/Clinical Data
	nsrr_bp_systolic Systolic blood pressure	Systolic blood pressure Average resting systolic blood pressure of six measurements (three measurements in the evening and three in the morning) collected from the upper arm in a single day. 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: bpsys at Visit 3	Harmonized/Clinical Data
	nsrr_age Subject age	Subject age Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: age at Visit 3	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 Visit 3	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 at Visit 3	Harmonized/Demographics
	nsrr_race Subject race	Subject race Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: race at Visit 3	Harmonized/Demographics
	nsrr_sex Subject sex	Subject sex Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: male at Visit 3	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: yevrsmk , ycursmk at Visit 3	Harmonized/Lifestyle and Behavioral Health
	nsrr_ever_smoker Ever smoked cigarettes	Ever smoked cigarettes Indicates whether subject ever regularly smoked cigarettes. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: yevrsmk at Visit 3	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 3	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 3	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 3	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 3	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 3	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 3	Harmonized/Polysomnography/Signal Quality
	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 3	Harmonized/Polysomnography/Sleep Architecture
	ahi_a0h3 Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography	Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events.	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_a0h3a Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography	Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events. 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.] Search for all AHI variables consistent with the same clinical guidelines within this dataset	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_a0h4 Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography	Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events. 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.]. Search for all AHI variables consistent with the same clinical guidelines within this dataset	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_a0h4a Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography	Apnea-Hypopnea Index: (All apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events.	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_c0h3 Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography	Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation and with or without arousal) / hour of sleep from type I polysomnography from type I polysomnography Calculated - Summary metric of sleep disordered breathing events.	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_c0h3a Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation or with arousal) / hour of sleep from type I polysomnography	Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 3% desaturation or with arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events. 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.] Search for all AHI variables consistent with the same clinical guidelines within this dataset	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_c0h4 Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation and with or without arousal) / hour of sleep from type I polysomnography	Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation and with or without arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events. 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.]. Search for all AHI variables consistent with the same clinical guidelines within this dataset	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_c0h4a Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type I polysomnography	Central Apnea-Hypopnea Index: (Central apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with > 4% desaturation or with arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events.	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_o0h3 Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography	Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events.	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_o0h3a Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography	Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 3% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events. 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.] Search for all AHI variables consistent with the same clinical guidelines within this dataset	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_o0h4 Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography	Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events. 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.]. Search for all AHI variables consistent with the same clinical guidelines within this dataset	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ahi_o0h4a Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography	Obstructive Apnea-Hypopnea Index: (Obstructive apneas with no oxygen desaturation threshold used and with or without arousal + hypopneas with > 30% flow reduction and with >= 4% oxygen desaturation or with arousal) / hour of sleep from type I polysomnography Calculated - Summary metric of sleep disordered breathing events.	Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices
	ai_all Arousal Index: Arousals per hour of sleep from type I polysomnography	Arousal Index: Arousals per hour of sleep from type I polysomnography Total number of arousals per hour of sleep. Ratio of count of arousals to total sleep time in hours. [(Total number of arousals) / (hours of sleep)]	Sleep Monitoring/Polysomnography/Arousals
	avgsat Average oxygen saturation during total sleep duration from type I polysomnography	Average oxygen saturation during total sleep duration from type I polysomnography	Sleep Monitoring/Polysomnography/Oxygen Saturation
	pctlt90 Percentage duration of sleep with oxygen saturation < 90% from type I polysomnography	Percentage duration of sleep with oxygen saturation < 90% from type I polysomnography Ratio of the number of minutes with oxygen saturation (SaO2) under 90% to the total sleep time expressed in hours.	Sleep Monitoring/Polysomnography/Sleep Architecture
	rdi3p Apnea-Hypopnea Index: (Apneas with >= 3% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography	Apnea-Hypopnea Index: (Apneas with >= 3% oxygen desaturation and with or without arousal + hypopneas with > 30% flow reduction and >= 3% oxygen desaturation and with or without arousal) / hour of sleep from type I polysomnography [(total number of apneas and hypopneas associated with >= 3% oxygen desaturation) / (hours of sleep)]	Sleep Monitoring/Polysomnography/Sleep Architecture
	slp_eff Sleep Efficiency: the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography	Sleep Efficiency: the ratio of sleep duration (i.e. total sleep time) to in-bed period from type I polysomnography Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep (i.e. total sleep time, TST), while in-bed period is the interval between lights off/in-bed time and lights on/out-bed time (i.e. time in bed, TIB). [100*(total sleep time) / (total time in bed)]	Sleep Monitoring/Polysomnography/Sleep Architecture
	slpprdp Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type I polysomnography	Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type I polysomnography Conventionally, this would be called total sleep time (TST) (i.e. total time spent in stage 1 or greater). Total time from lights out to lights on that is scored as sleep (rounded to nearest minute)	Sleep Monitoring/Polysomnography/Sleep Architecture
	essscore Total score for modified Epworth Sleepiness Scale (ESS)	Total score for modified Epworth Sleepiness Scale (ESS) The sum of items 1-8.	Sleep Questionnaires/Hypersomnia/Epworth Sleepiness Scale (ESS)
	bmicat Body Mass Index (BMI) percentile category	Body Mass Index (BMI) percentile category	Anthropometry
	bmige85 Body Mass Index (BMI) >= 85th percentile	Body Mass Index (BMI) >= 85th percentile	Anthropometry
	bmige95 Body Mass Index (BMI) >= 95th percentile	Body Mass Index (BMI) >= 95th percentile	Anthropometry
	bmipct Body Mass Index (BMI) percentile (from the Centers for Disease Control and Prevention (CDC)) for age, gender	Body Mass Index (BMI) percentile (from the Centers for Disease Control and Prevention (CDC)) for age, gender Age- and gender-specific Body Mass Index (BMI) percentile based on the Centers for Disease Control and Prevention (CDC) norms	Anthropometry
	bmiz Body Mass Index (BMI) z-score (from the Centers for Disease Control and Prevention (CDC)) for age, gender	Body Mass Index (BMI) z-score (from the Centers for Disease Control and Prevention (CDC)) for age, gender Age- and gender-specific Body Mass Index (BMI) z-score based on the Centers for Disease Control and Prevention (CDC) norms	Anthropometry
	haz Height z-score (from the Centers for Disease Control and Prevention (CDC)) for age, gender	Height z-score (from the Centers for Disease Control and Prevention (CDC)) for age, gender Age- and gender-specific height z-score based on the Centers for Disease Control and Prevention (CDC) norms	Anthropometry
	htpct Height percentile (from the Centers for Disease Control and Prevention (CDC)) for age, gender	Height percentile (from the Centers for Disease Control and Prevention (CDC)) for age, gender Age- and gender-specific height z-score based on the Centers for Disease Control and Prevention (CDC) norms	Anthropometry
	pbmi_dad Body Mass Index (BMI) of Subject's Father	Body Mass Index (BMI) of Subject's Father	Anthropometry
	pbmi_mom Body Mass Index (BMI) of Subject's Mother	Body Mass Index (BMI) of Subject's Mother	Anthropometry
	pctfat_houtkooper Fat mass percent of weight (Houtkooper)	Fat mass percent of weight (Houtkooper)	Anthropometry
	pctfat_kotler Fat mass percent of weight (Kotler)	Fat mass percent of weight (Kotler)	Anthropometry
	waistge75 Waist circumference >= 75th percentile for age, gender	Waist circumference >= 75th percentile for age, gender Based on Fernandez pediatric waist circumference percentiles	Anthropometry
	waistge90 Waist circumference >= 90th percentile for age, gender	Waist circumference >= 90th percentile for age, gender Based on Fernandez pediatric waist circumference percentiles	Anthropometry
	waistgt75 Waist circumference > 75th percentile for age, gender	Waist circumference > 75th percentile for age, gender Based on Fernandez pediatric waist circumference percentiles	Anthropometry
	waistgt90 Waist circumference > 90th percentile for age, gender	Waist circumference > 90th percentile for age, gender Based on Fernandez pediatric waist circumference percentiles	Anthropometry
	waistpctcat Waist circumference percentile category	Waist circumference percentile category Based on Fernandez pediatric waist circumference percentiles	Anthropometry
	waz Weight z-score (from the Centers for Disease Control and Prevention (CDC)) for age, gender	Weight z-score (from the Centers for Disease Control and Prevention (CDC)) for age, gender Age- and gender-specific weight z-score based on the Centers for Disease Control and Prevention (CDC) norms	Anthropometry
	wtpct Weight percentile (from the Centers for Disease Control and Prevention (CDC)) for age, gender	Weight percentile (from the Centers for Disease Control and Prevention (CDC)) for age, gender Age- and gender-specific weight percentile based on the Centers for Disease Control and Prevention (CDC) norms	Anthropometry
	bp1dias1 Diastolic blood pressure (DBP) (Evening) time 1	Diastolic blood pressure (DBP) (Evening) time 1 First measurement of diastolic blood pressure (DBP) in evening	Clinical Data/Vital Signs/Seated Blood Pressure
	bp1dias2 Diastolic blood pressure (DBP) (Evening) time 2	Diastolic blood pressure (DBP) (Evening) time 2 Second measurement of diastolic blood pressure (DBP) in evening	Clinical Data/Vital Signs/Seated Blood Pressure
	bp1dias3 Diastolic blood pressure (DBP) (Evening) time 3	Diastolic blood pressure (DBP) (Evening) time 3 Third measurement of diastolic blood pressure (DBP) in evening	Clinical Data/Vital Signs/Seated Blood Pressure
	bp1hr1 Heart rate (Evening) time 1	Heart rate (Evening) time 1 First measurement of heart rate in evening	Clinical Data/Vital Signs/Seated Blood Pressure
	bp1hr2 Heart rate (Evening) time 2	Heart rate (Evening) time 2 Second measurement of heart rate in evening	Clinical Data/Vital Signs/Seated Blood Pressure
	bp1hr3 Heart rate (Evening) time 3	Heart rate (Evening) time 3 Third measurement of heart rate in evening	Clinical Data/Vital Signs/Seated Blood Pressure
	bp1sys1 Systolic blood pressure (SBP) (Evening) time 1	Systolic blood pressure (SBP) (Evening) time 1 First measurement of systolic blood pressure (SBP) in evening	Clinical Data/Vital Signs/Seated Blood Pressure
	bp1sys2 Systolic blood pressure (SBP) (Evening) time 2	Systolic blood pressure (SBP) (Evening) time 2 Second measurement of systolic blood pressure (SBP) in evening	Clinical Data/Vital Signs/Seated Blood Pressure
	bp1sys3 Systolic blood pressure (SBP) (Evening) time 3	Systolic blood pressure (SBP) (Evening) time 3 Third measurement of systolic blood pressure (SBP) in evening	Clinical Data/Vital Signs/Seated Blood Pressure
	bp1time Time of evening collection	Time of evening collection Time of evening blood pressure (BP) collection	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2dias1 Diastolic blood pressure (DBP) (Morning) time 1	Diastolic blood pressure (DBP) (Morning) time 1 First measurement of diastolic blood pressure (DBP) in morning	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2dias2 Diastolic blood pressure (DBP) (Morning) time 2	Diastolic blood pressure (DBP) (Morning) time 2 Second measurement of diastolic blood pressure (DBP) in morning	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2dias3 Diastolic blood pressure (DBP) (Morning) time 3	Diastolic blood pressure (DBP) (Morning) time 3 Third measurement of diastolic blood pressure (DBP) in morning	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2hr1 Heart rate (Morning) time 1	Heart rate (Morning) time 1 First measurement of heart rate in morning	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2hr2 Heart rate (Morning) time 2	Heart rate (Morning) time 2 Second measurement of heart rate in morning	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2hr3 Heart rate (Morning) time 3	Heart rate (Morning) time 3 Third measurement of heart rate in morning	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2sys1 Systolic blood pressure (SBP) (Morning) time 1	Systolic blood pressure (SBP) (Morning) time 1 First measurement of systolic blood pressure (SBP) in morning	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2sys2 Systolic blood pressure (SBP) (Morning) time 2	Systolic blood pressure (SBP) (Morning) time 2 Second measurement of systolic blood pressure (SBP) in morning	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2sys3 Systolic blood pressure (SBP) (Morning) time 3	Systolic blood pressure (SBP) (Morning) time 3 Third measurement of systolic blood pressure (SBP) in morning	Clinical Data/Vital Signs/Seated Blood Pressure
	bp2time Time of Morning collection	Time of Morning collection Time of morning blood pressure (BP) collection	Clinical Data/Vital Signs/Seated Blood Pressure
	missbpdias Number of missing diastolic measurements	Number of missing diastolic measurements Blood pressure (BP) is collected six times, three measurements in the evening and three in the morning. This is the number of time points missing diastolic blood pressure (DBP).	Clinical Data/Vital Signs/Seated Blood Pressure
	missbphr Number of missing heart rate measurements	Number of missing heart rate measurements Blood pressure (BP) is collected six times, three measurements in the evening and three in the morning. This is the number of time points missing heart rate.	Clinical Data/Vital Signs/Seated Blood Pressure
	missbpsys Number of missing systolic measurements	Number of missing systolic measurements Blood pressure (BP) is collected six times, three measurements in the evening and three in the morning. This is the number of time points missing systolic blood pressure (SBP).	Clinical Data/Vital Signs/Seated Blood Pressure
	race3 Race	Race Race was collapsed into these three categories to match other National Sleep Research Resource (NSRR) datasets	Demographics
	ystatus Rate socioeconomic standing based on ladder	Rate socioeconomic standing based on ladder	Demographics/Socioeconomic Status
	yacaer Other aerobic exercise	Other aerobic exercise Calculated as self-report of the number of minutes of activity per day times self report of the number of days per week in that activity	Lifestyle and Behavioral Health
	yacarm Weight training (Arm)	Weight training (Arm) Calculated as self-report of the number of minutes of activity per day times self report of the number of days per week in that activity	Lifestyle and Behavioral Health
	yacbike Bicycling	Bicycling Calculated as self-report of the number of minutes of activity per day times self report of the number of days per week in that activity	Lifestyle and Behavioral Health
	yacjog Jogging	Jogging Calculated as self-report of the number of minutes of activity per day times self report of the number of days per week in that activity	Lifestyle and Behavioral Health
	yacleg Weight training (Leg)	Weight training (Leg) Calculated as self-report of the number of minutes of activity per day times self report of the number of days per week in that activity	Lifestyle and Behavioral Health
	yacloin Lower intensity exercise	Lower intensity exercise Calculated as self-report of the number of minutes of activity per day times self report of the number of days per week in that activity	Lifestyle and Behavioral Health
	yacother Other activity	Other activity Calculated as self-report of the number of minutes of activity per day times self report of the number of days per week in that activity	Lifestyle and Behavioral Health
	yacrun Running	Running Calculated as self-report of the number of minutes of activity per day times self report of the number of days per week in that activity	Lifestyle and Behavioral Health