| 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 | |
|
wtkg
Weight
|
Weight | Anthropometry | |
|
age
Age at time of visit
|
Age at time of visit | Demographics | |
|
ethnicity
Ethnicity
|
Ethnicity | Demographics | |
|
male
Male gender
|
Male gender | Demographics | |
|
race3
Race
|
Race
Race was collapsed into these three categories to match other National Sleep Research Resource (NSRR) datasets |
Demographics | |
|
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. |
Measurements/Blood Pressure (BP) | |
|
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. |
Measurements/Blood Pressure (BP) | |
|
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. |
Measurements/Blood Pressure (BP) | |
|
ahi_a0h3
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep
|
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_a0h3a
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep
|
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_a0h4
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
|
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_a0h4a
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
|
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_c0h3
Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep
|
Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_c0h3a
Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep
|
Central Apnea-Hypopnea Index (AHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_c0h4
Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
|
Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_c0h4a
Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
|
Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_o0h3
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep
|
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_o0h3a
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep
|
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_o0h4
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
|
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ahi_o0h4a
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
|
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep | Measurements/Polysomnography (PSG) | |
|
ai_all
Overall arousal index
|
Overall arousal index
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)] |
Measurements/Polysomnography (PSG) | |
|
avgsat
Average oxygen saturation (SaO2) in sleep time
|
Average oxygen saturation (SaO2) in sleep time | Measurements/Polysomnography (PSG) | |
|
pctlt90
Percent of sleep time <90% oxygen saturation (SaO2)
|
Percent of sleep time <90% oxygen saturation (SaO2)
Ratio of the number of minutes with oxygen saturation (SaO2) under 90% to the total sleep time expressed in hours. |
Measurements/Polysomnography (PSG) | |
|
rdi3p
Overall Respiratory Disturbance Index (RDI) at >=3% oxygen desaturation
|
Overall Respiratory Disturbance Index (RDI) at >=3% oxygen desaturation
[(total number of apneas and hypopneas associated with >= 3% oxygen desaturation) / (hours of sleep)] |
Measurements/Polysomnography (PSG) | |
|
slp_eff
Sleep efficiency
|
Sleep efficiency
Percentage of time in bed that was spent sleeping, or the ratio of total sleep time to total time in bed, expressed as a percentage. [100*(total sleep time) / (total time in bed)] |
Measurements/Polysomnography (PSG) | |
|
slpprdp
Total sleep time
|
Total sleep time
Total time from lights out to lights on that is scored as sleep (rounded to nearest minute) |
Measurements/Polysomnography (PSG) | |
|
waistcm
Waist circumference
|
Waist circumference
Mean of two measurements |
Measurements/Skinfold Assessment | |
|
essscore
Total score for modified Epworth Sleepiness Scale (ESS)
|
Total score for modified Epworth Sleepiness Scale (ESS)
The sum of items 1-8. |
Questionnaires/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 | |
|
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 | |
|
cslp
Coefficient of variation - sleep time - all nights
|
Coefficient of variation - sleep time - all nights | Measurements/Actigraphy | |
|
cslpend
Coefficient of variation - sleep time - weekend nights
|
Coefficient of variation - sleep time - weekend nights | Measurements/Actigraphy | |
|
cslpwk
Coefficient of variation - sleep time - weekday nights
|
Coefficient of variation - sleep time - weekday nights | Measurements/Actigraphy | |
|
mseff
Mean sleep efficiency - all nights
|
Mean sleep efficiency - all nights | Measurements/Actigraphy | |
|
mseffend
Mean sleep efficiency - weekend nights
|
Mean sleep efficiency - weekend nights | Measurements/Actigraphy | |
|
mseffwk
Mean sleep efficiency - weekday nights
|
Mean sleep efficiency - weekday nights | Measurements/Actigraphy | |
|
mslp
Mean sleep time - all nights
|
Mean sleep time - all nights | Measurements/Actigraphy | |
|
mslpend
Mean sleep time - weekend nights
|
Mean sleep time - weekend nights | Measurements/Actigraphy | |
|
mslpwk
Mean sleep time - weekday nights
|
Mean sleep time - weekday nights | Measurements/Actigraphy | |
|
nslp
Number of nights with sleep time data
|
Number of nights with sleep time data | Measurements/Actigraphy | |
|
nslpend
Number of weekend nights with sleep time data
|
Number of weekend nights with sleep time data | Measurements/Actigraphy | |
|
nslpwk
Number of weekday nights with sleep time data
|
Number of weekday nights with sleep time data | Measurements/Actigraphy | |
|
bp1dias1
Diastolic blood pressure (DBP) (Evening) time 1
|
Diastolic blood pressure (DBP) (Evening) time 1
First measurement of diastolic blood pressure (DBP) in evening |
Measurements/Blood Pressure (BP) | |
|
bp1dias2
Diastolic blood pressure (DBP) (Evening) time 2
|
Diastolic blood pressure (DBP) (Evening) time 2
Second measurement of diastolic blood pressure (DBP) in evening |
Measurements/Blood Pressure (BP) | |
|
bp1dias3
Diastolic blood pressure (DBP) (Evening) time 3
|
Diastolic blood pressure (DBP) (Evening) time 3
Third measurement of diastolic blood pressure (DBP) in evening |
Measurements/Blood Pressure (BP) | |
|
bp1hr1
Heart rate (Evening) time 1
|
Heart rate (Evening) time 1
First measurement of heart rate in evening |
Measurements/Blood Pressure (BP) | |
|
bp1hr2
Heart rate (Evening) time 2
|
Heart rate (Evening) time 2
Second measurement of heart rate in evening |
Measurements/Blood Pressure (BP) | |
|
bp1hr3
Heart rate (Evening) time 3
|
Heart rate (Evening) time 3
Third measurement of heart rate in evening |
Measurements/Blood Pressure (BP) | |
|
bp1sys1
Systolic blood pressure (SBP) (Evening) time 1
|
Systolic blood pressure (SBP) (Evening) time 1
First measurement of systolic blood pressure (SBP) in evening |
Measurements/Blood Pressure (BP) | |
|
bp1sys2
Systolic blood pressure (SBP) (Evening) time 2
|
Systolic blood pressure (SBP) (Evening) time 2
Second measurement of systolic blood pressure (SBP) in evening |
Measurements/Blood Pressure (BP) | |
|
bp1sys3
Systolic blood pressure (SBP) (Evening) time 3
|
Systolic blood pressure (SBP) (Evening) time 3
Third measurement of systolic blood pressure (SBP) in evening |
Measurements/Blood Pressure (BP) | |
|
bp1time
Time of evening collection
|
Time of evening collection
Time of evening blood pressure (BP) collection |
Measurements/Blood Pressure (BP) | |
|
bp2dias1
Diastolic blood pressure (DBP) (Morning) time 1
|
Diastolic blood pressure (DBP) (Morning) time 1
First measurement of diastolic blood pressure (DBP) in morning |
Measurements/Blood Pressure (BP) | |
|
bp2dias2
Diastolic blood pressure (DBP) (Morning) time 2
|
Diastolic blood pressure (DBP) (Morning) time 2
Second measurement of diastolic blood pressure (DBP) in morning |
Measurements/Blood Pressure (BP) | |
|
bp2dias3
Diastolic blood pressure (DBP) (Morning) time 3
|
Diastolic blood pressure (DBP) (Morning) time 3
Third measurement of diastolic blood pressure (DBP) in morning |
Measurements/Blood Pressure (BP) | |
|
bp2hr1
Heart rate (Morning) time 1
|
Heart rate (Morning) time 1
First measurement of heart rate in morning |
Measurements/Blood Pressure (BP) | |
|
bp2hr2
Heart rate (Morning) time 2
|
Heart rate (Morning) time 2
Second measurement of heart rate in morning |
Measurements/Blood Pressure (BP) | |
|
bp2hr3
Heart rate (Morning) time 3
|
Heart rate (Morning) time 3
Third measurement of heart rate in morning |
Measurements/Blood Pressure (BP) | |
|
bp2sys1
Systolic blood pressure (SBP) (Morning) time 1
|
Systolic blood pressure (SBP) (Morning) time 1
First measurement of systolic blood pressure (SBP) in morning |
Measurements/Blood Pressure (BP) | |
|
bp2sys2
Systolic blood pressure (SBP) (Morning) time 2
|
Systolic blood pressure (SBP) (Morning) time 2
Second measurement of systolic blood pressure (SBP) in morning |
Measurements/Blood Pressure (BP) | |
|
bp2sys3
Systolic blood pressure (SBP) (Morning) time 3
|
Systolic blood pressure (SBP) (Morning) time 3
Third measurement of systolic blood pressure (SBP) in morning |
Measurements/Blood Pressure (BP) | |
|
bp2time
Time of Morning collection
|
Time of Morning collection
Time of morning blood pressure (BP) collection |
Measurements/Blood Pressure (BP) | |
|
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). |
Measurements/Blood Pressure (BP) | |
|
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. |
Measurements/Blood Pressure (BP) | |
|
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). |
Measurements/Blood Pressure (BP) | |
|
canbp
Number of central apnea (Non-rapid eye movement sleep (NREM), Supine, all oxygen desaturations)
|
Number of central apnea (Non-rapid eye movement sleep (NREM), Supine, all oxygen desaturations) | Measurements/Polysomnography (PSG) | |
|
canop
Number of central apnea (Non-rapid eye movement sleep (NREM), Non-supine, all oxygen desaturations)
|
Number of central apnea (Non-rapid eye movement sleep (NREM), Non-supine, all oxygen desaturations) | Measurements/Polysomnography (PSG) | |
|
carbp
Number of central apnea (Rapid eye movement sleep (REM), Supine, all oxygen desaturations)
|
Number of central apnea (Rapid eye movement sleep (REM), Supine, all oxygen desaturations) | Measurements/Polysomnography (PSG) | |
|
carop
Number of central apnea (Rapid eye movement sleep (REM), Non-supine, all oxygen desaturations)
|
Number of central apnea (Rapid eye movement sleep (REM), Non-supine, all oxygen desaturations) | Measurements/Polysomnography (PSG) | |
|
hnrba3
Number of hypopnea with >=3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Supine)
|
Number of hypopnea with >=3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Supine) | Measurements/Polysomnography (PSG) | |
|
hnrba4
Number of Hypopnea with >=4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Supine)
|
Number of Hypopnea with >=4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Supine) | Measurements/Polysomnography (PSG) | |
|
hnrbp3
Number of hypopnea (Non-rapid eye movement sleep (NREM), Supine, >=3% oxygen desaturation)
|
Number of hypopnea (Non-rapid eye movement sleep (NREM), Supine, >=3% oxygen desaturation) | Measurements/Polysomnography (PSG) | |
|
hnrbp4
Number of hypopnea (Non-rapid eye movement sleep (NREM), Supine, >=4% oxygen desaturation)
|
Number of hypopnea (Non-rapid eye movement sleep (NREM), Supine, >=4% oxygen desaturation) | Measurements/Polysomnography (PSG) | |
|
hnroa3
Number of hypopnea with >=3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Non-supine)
|
Number of hypopnea with >=3% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Non-supine) | Measurements/Polysomnography (PSG) | |
|
hnroa4
Number of hypopnea with >=4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Non-supine)
|
Number of hypopnea with >=4% oxygen desaturation or arousal (Non-rapid eye movement sleep (NREM), Non-supine) | Measurements/Polysomnography (PSG) | |
|
hnrop3
Number of hypopnea (Non-rapid eye movement sleep (NREM), Non-supine, >=3% oxygen desaturation)
|
Number of hypopnea (Non-rapid eye movement sleep (NREM), Non-supine, >=3% oxygen desaturation) | Measurements/Polysomnography (PSG) | |
|
hnrop4
Number of hypopnea (Non-rapid eye movement sleep (NREM), Non-supine, >=4% oxygen desaturation)
|
Number of hypopnea (Non-rapid eye movement sleep (NREM), Non-supine, >=4% oxygen desaturation) | Measurements/Polysomnography (PSG) | |
|
hremba3
Number of hypopnea with >=3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Supine)
|
Number of hypopnea with >=3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Supine) | Measurements/Polysomnography (PSG) | |
|
hremba4
Number of hypopnea with >=4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Supine)
|
Number of hypopnea with >=4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Supine) | Measurements/Polysomnography (PSG) | |
|
hrembp3
Number of hypopnea (Rapid eye movement sleep (REM), Supine, >=3% oxygen desaturation)
|
Number of hypopnea (Rapid eye movement sleep (REM), Supine, >=3% oxygen desaturation) | Measurements/Polysomnography (PSG) | |
|
hrembp4
Number of hypopnea (Rapid eye movement sleep (REM), Supine, >=4% oxygen desaturation)
|
Number of hypopnea (Rapid eye movement sleep (REM), Supine, >=4% oxygen desaturation) | Measurements/Polysomnography (PSG) | |
|
hroa3
Number of hypopnea with >=3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Non-supine)
|
Number of hypopnea with >=3% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Non-supine) | Measurements/Polysomnography (PSG) | |
|
hroa4
Number of hypopnea with >=4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Non-supine)
|
Number of hypopnea with >=4% oxygen desaturation or arousal (Rapid eye movement sleep (REM), Non-supine) | Measurements/Polysomnography (PSG) | |
|
hrop3
Number of hypopnea (Rapid eye movement sleep (REM), Non-supine, >=3% oxygen desaturation)
|
Number of hypopnea (Rapid eye movement sleep (REM), Non-supine, >=3% oxygen desaturation) | Measurements/Polysomnography (PSG) | |
|
hrop4
Number of hypopnea (Rapid eye movement sleep (REM), Non-supine, >=4% oxygen desaturation)
|
Number of hypopnea (Rapid eye movement sleep (REM), Non-supine, >=4% oxygen desaturation) | Measurements/Polysomnography (PSG) |