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GOLD Classification
Signs/Symptoms
Normal lung function
History of exposure to risk factors
Chronic symptoms
Mild COPD
FEV
1
/FVC<70%
FEV
1
≥80% (predicted)
Moderate COPD
FEV
1
/FVC<70%
FEV
1
50-79% (predicted)
Severe COPD
FEV
1
/FVC<70%
FEV
1
30-49% (predicted)
Very Severe COPD
FEV
1
/FVC<70%
FEV
1
<30% (predicted)
Classification:
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