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Table 1 Classification of COPD

From: Two-dimensional shear wave elastography: a new tool for evaluating respiratory muscle stiffness in chronic obstructive pulmonary disease patients

Classification

FEV1/FVC

FEV1% predicted

Mild

< 70%

FEV1 ≥ 80% predicted

Moderate

< 70%

50%≤FEV1< 80% predicted

Severe

< 70%

30%≤FEV1< 50% predicted

Very Severe

< 70%

FEV1< 30% predicted

  1. COPD chronic obstructive pulmonary disease, FEV1 forced expiratory volume in one second, FVC forced vital capacity
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BMC Pulmonary Medicine

ISSN: 1471-2466

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