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353,330 items of data are available, covering 353,330 participants, encoded using Data-Coding 7.
Counts of participants/items last updated 13 Apr 2019.
Indicates whether an individual's spirometry meets European Respiratory Society/American Thoracic Society (ERS/ATS) Criteria, that is their highest acceptable measure was reproducible (the highest acceptable measure and any other measure were within 150 millilitres for both for Forced Expiratory Volume in 1-second (FEV1) and Forced Vital Capacity (FVC), although not necessarily the same blow. Note, if FVC <=1 litre the criteria is within 100 millilitres).
This derived data field has come from Professor Martin Tobin at the University of Leicester.