Name | Label | Folder | |
---|---|---|---|
filename_id
Filename ID to match with sleep study data
|
Filename ID to match with sleep study data
Combination of study_pat_id and sleep_study_id |
Administrative | |
sleep_study_id
NCHSDB Sleep Study ID
|
NCHSDB Sleep Study ID
Pseudo identifier for each unique sleep study |
Administrative | |
study_pat_id
NCHSDB Subject ID
|
NCHSDB Subject ID
A pseudo identifier with a consistent crosswalk to the true identifier retained by the source Data Partner. For analytical data sets requiring patient-level data, only the pseudo identifier is used to link across all information belonging to a patient. |
Administrative | |
nsrr_bmi
Body mass index (BMI)
|
Body mass index (BMI)
Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: bmi |
Harmonized/Anthropometry | |
nsrr_bmipct
Body mass index (BMI) percentile
|
Body mass index (BMI) percentile
Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: bmipct |
Harmonized/Anthropometry | |
nsrr_bp_diastolic
Diastolic blood pressure
|
Diastolic blood pressure
Single measure of resting diastolic blood pressure collected from the upper arm in a clinic visit closest to the sleep test. |
Harmonized/Clinical Data | |
nsrr_bp_systolic
Systolic blood pressure
|
Systolic blood pressure
Single measure of resting systolic blood pressure collected from the upper arm in a clinic visit closest to the sleep test. |
Harmonized/Clinical Data | |
nsrr_age
Subject age
|
Subject age
Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: age_at_sleep_study_days |
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_sleep_study_days |
Harmonized/Demographics | |
nsrr_ethnicity
Subject ethnicity
|
Subject ethnicity
Original missing value is recoded as "not reported". |
Harmonized/Demographics | |
nsrr_race
Subject race
|
Subject race
Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: pcori_race_cd |
Harmonized/Demographics | |
nsrr_sex
Subject sex
|
Subject sex
Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: pcori_gender_cd |
Harmonized/Demographics | |
encounter
Encounter number
|
Encounter number | Administrative | |
bmi
Body mass index (BMI)
|
Body mass index (BMI)
The NSRR team extracted values from the MEASUREMENT.CSV file and kept the value closest to the time of the sleep study. Reference: bmi_offset |
Anthropometry | |
bmi_offset
Difference between date of body mass index (BMI) measurement and sleep test
|
Difference between date of body mass index (BMI) measurement and sleep test
Derived using dates from the MEASUREMENT.CSV and SLEEP_STUDY.CSV data files. |
Anthropometry | |
bmipct
Body mass index (BMI) percentile
|
Body mass index (BMI) percentile
The NSRR team extracted values from the MEASUREMENT.CSV file and kept the value closest to the time of the sleep study. Reference: bmipct_offset |
Anthropometry | |
bmipct_offset
Difference between date of body mass index (BMI) percentile measurement and sleep test
|
Difference between date of body mass index (BMI) percentile measurement and sleep test
Derived using dates from the MEASUREMENT.CSV and SLEEP_STUDY.CSV data files. |
Anthropometry | |
bp_diastolic
Single measure of seated diastolic blood pressure closest to the sleep test
|
Single measure of seated diastolic blood pressure closest to the sleep test
The NSRR team extracted values from the MEASUREMENT.CSV file and kept the value closest to the time of the sleep study. Reference: bp_offset |
Clinical Data/Vital Signs/Seated Blood Pressure | |
bp_offset
Difference between date of systolic and diastolic blood pressure measurements and sleep test
|
Difference between date of systolic and diastolic blood pressure measurements and sleep test
Derived using dates from the MEASUREMENT.CSV and SLEEP_STUDY.CSV data files. |
Clinical Data/Vital Signs/Seated Blood Pressure | |
bp_systolic
Single measure of seated systolic blood pressure closest to the sleep test
|
Single measure of seated systolic blood pressure closest to the sleep test
The NSRR team extracted values from the MEASUREMENT.CSV file and kept the value closest to the time of the sleep study. Reference: bp_offset |
Clinical Data/Vital Signs/Seated Blood Pressure | |
age_at_sleep_study_days
The age of the patient in days at the time of the sleep study
|
The age of the patient in days at the time of the sleep study | Demographics | |
birth_date
Date of birth
|
Date of birth
For each STUDY_PAT_ID, a random date shift of +/- 180 days was chosen, and all identified patient data that are linked to the STUDY_PAT_ID (i.e. from EHR and Natus) were adjusted. |
Demographics | |
ethnicity_descr
Patient ethnicity (text)
|
Patient ethnicity (text) | Demographics | |
gender_descr
Patient gender (text)
|
Patient gender (text) | Demographics | |
language_descr
Patient language (text)
|
Patient language (text) | Demographics | |
pcori_gender_cd
Patient gender
|
Patient gender | Demographics | |
pcori_hispanic_cd
Patient is of Hispanic ethnicity
|
Patient is of Hispanic ethnicity
A person of Cuban, Mexican, Puerto Rican, South or Central American, or other Spanish culture or origin, regardless of race. |
Demographics | |
pcori_race_cd
Patient race
|
Patient race | Demographics | |
peds_gest_age_num_days
Patient's gestational age in days (when available)
|
Patient's gestational age in days (when available) | Demographics | |
peds_gest_age_num_weeks
Patient's gestational age truncated to the nearest full week (when available)
|
Patient's gestational age truncated to the nearest full week (when available) | Demographics | |
race_descr
Patient race (text)
|
Patient race (text) | Demographics |