Related Variables
| visitdat | Date of visit | Administrative | |
| whenpsg | When subject had previous sleep study | Administrative | |
| visitecg | Date of visit | Clinical Data/Diagnostic Studies/Electrocardiogram | |
| visitbr | Date of visit | Clinical Data/Diagnostic Studies/Lung Function/Brachial Reactivity | |
| visitaa | Visit date | Clinical Data/Vital Signs/Seated Blood Pressure | |
| q10q3 |
Child's date of birth
Item from the Child Health Questionnaire Parent Form 50 Questions (CHQ-PF50). Asmussen L et al, 2000 (PubMed ID: 11029320) |
General Health/Child Health Questionnaire (CHQ) | |
| q11q2 |
Your date of birth
Item from the Child Health Questionnaire Parent Form 50 Questions (CHQ-PF50). Asmussen L et al, 2000 (PubMed ID: 11029320) |
General Health/Child Health Questionnaire (CHQ) | |
| q11q8 |
What is today's date
Item from the Child Health Questionnaire Parent Form 50 Questions (CHQ-PF50). Asmussen L et al, 2000 (PubMed ID: 11029320) |
General Health/Child Health Questionnaire (CHQ) | |
| nsrr_age_gt89 |
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 5 |
Harmonized/Demographics | |
| stdatep | PSG Start Date | Sleep Monitoring/Polysomnography/Administrative | |
| visitld | Date of Lab Study from Diary | Sleep Monitoring/Polysomnography/Evening and Morning Survey |