Key result
Applying the new ATS/ERS interpretative algorithm required 34.5% more subjects to undergo lung volume testing and diagnosed 13% more subjects with obstructive diseases.
Why the study?
The accuracy of using 0.7 of LLN for the FEV1/FVC to diagnose obstructive diseases and the impact of the new ATS/ERS 2005 interpretative algorithm on diagnosing ventilatory defects were uncertain.
Does the new ATS/ERS 2005 interpretative algorithm change the diagnosis of obstructive lung diseases compared to older algorithms?
Cross-Sectional (n=7,362)
No
Does the new ATS/ERS 2005 interpretative algorithm change the diagnosis of obstructive lung diseases compared to older algorithms?
Applying the 2005 ATS/ERS interpretative algorithm for lung function tests increases the need for lung volume testing and the diagnosis of obstructive lung diseases.
May increase lung volume testing and obstructive diagnoses; leaves open effects on accuracy and outcomes before practice change.
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Won et al. (2006) conducted a cross-sectional in Obstructive lung disease (n=7,362). New ATS/ERS 2005 interpretative algorithm vs. Old interpretative algorithm was evaluated on Proportion of subjects requiring lung volume testing. Applying the new ATS/ERS interpretative algorithm required 34.5% more subjects to undergo lung volume testing and diagnosed 13% more subjects with obstructive diseases.
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