Related Variables
| fev1 | Spirometry:Forced expiratory volume (FEV), 1st second | Clinical Data/Diagnostic Studies/Lung Function/Spirometry | |
| race |
Participant's race
'Asian', 'Hispanic', 'Other', and 'More than one race' were condensed into 'Other' to match other NSRR datasets |
Demographics | |
| function | During which time of day do you function best? | Sleep Questionnaires/Chronotype |