Was the FEV1/FVC ratio for one of the three valid blows less than 0.7
Categories
Value
Category
Sysmiss
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Question pretext
Spirometry test
Question post text
(If yes, proceed to reversibility screen. Go to 16.4)
Interviewer instructions
Confirm that the participant understands what the test is for.
Description
Text
This is whether the FEV1/FWC ratio for one of the three valid blows less than 0.7
