PubMed · 5255732
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J J Quinlan, G A Kloss, F J Misener. 1969. Bronchospirometry.. https://pubmed.ncbi.nlm.nih.gov/5255732/
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Electronic spirometry on the basis of forced expiration and flow-volume-curve possess many advantages for the detection of ventilatory alterations in human lung.
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Since Tiffeneau's days the forced expiration test used qualitatively and quantitatively has undergone numerous changes. FEV1 remains useful to diagnose bronchial obstruction, but other, more sensitive parameters have been introduced for epidemiological purposes. Following a review of the data provided by flow-volume curves, the authors discuss the pros and cons of its statistical analysis by the moment method, as expressed in the literature.