Post-BD Expected (among valid spirometry
This variable is a flag for whether a post bronchodilator was expected, based on the premeasurement. A post measurement was expected if the FEV1 to FVC ratio was less than 70% or less than the lower limit of normal for FEV1/FVC%.
- 0: No
- 1: Yes
Post-BD Expected (among valid spirometry vs Visit Number
Post-BD Expected (among valid spirometry vs Gender