Instability in the COPD Diagnosis upon Repeat Testing Vary with the Definition of COPD

Rogelio Perez-Padilla, Fernando C Wehrmeister, Maria Montes de Oca, Maria Victorina Lopez, Jose R Jardim, Adriana Muino, Gonzalo Valdivia, Julio Pertuze, Ana Maria B Menezes and Group Platino

PLOS ONE, 2015, vol. 10, issue 3, 1-13

Abstract: Background: A low FEV1/FVC from post-bronchodilator spirometry is required to diagnose COPD. Both the FEV1 and the FVC can vary over time; therefore, individuals can be given a diagnosis of mild COPD at one visit, but have normal spirometry during the next appointment, even without an intervention. Methods: We analyzed two population-based surveys of adults with spirometry carried out for the same individuals 5-9 years after their baseline examination. We determined the factors associated with a change in the spirometry interpretation from one exam to the next utilizing different criteria commonly used to diagnose COPD. Results: The rate of an inconsistent diagnosis of mild COPD was 11.7% using FEV1/FVC

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0121832

DOI: 10.1371/journal.pone.0121832

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