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Hi all,
I have a couple of questions about the spirometry data in the SHHS datasets, and am not sure where to find the answers. Are the FEV1 & FVC results from pre- or post- bronchodilator administration? Are the FEV1 & FVC results the average from X number of trials, or the best, or the first? Was there any sort of guarantor of session/technique quality? Were participants asked to refrain from using inhaled medications, smoking etc for XX period of time before spirometry? Was it conducted standing or seated?
I imagine this sort of information must be somewhere, but I can't find it in the datasets, nor the manual of operations or the Forms etc.
Any help pointing me in the right direction would be much appreciated.
Cheers, Tim