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Diagnosis of COPD: identifying obstructive disease using spirometry

  • 26 August 2019Hard
In subjects with possible chronic obstructive pulmonary disease (COPD), the threshold-value of the ratio of the forced expiratory volume in the first second to the forced vital capacity (FEV1:FVC), which allows us to confirm the obstructive disease and very specifically predict the risk of COPD-related events (hospitalisation, mortality), is:

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