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. Author manuscript; available in PMC: 2011 Nov 1.
Published in final edited form as: J Am Geriatr Soc. 2010 Nov;58(11):2224–2226. doi: 10.1111/j.1532-5415.2010.03128.x

Table 1.

Current spirometric criteria for establishing and staging COPD

GOLD ATS/ERS
Establishing COPD
FEV1/FVC		 Staging COPD
FEV1 (%Pred)* 		Establishing COPD
FEV1/FVC		 Staging COPD
FEV1 (%Pred)*
<0.70 Mild: ≥80 <ATS/ERS-LLN Mild: ≥70
Moderate: 50–79 Moderate: 60–69
Moderately severe: 50–59
Severe: 30–49 Severe: 35–49
Very severe: <30 Very Severe: <35

Abbreviations: COPD, Chronic Obstructive Pulmonary Disease; GOLD, Global Initiative for Obstructive Lung Disease; ATS/ERS, American Thoracic and European Respiratory Societies; FEV1/FVC, ratio of forced expiratory volume in 1 second (FEV1) to forced vital capacity (FVC); LLN, lower limit of normal; %Pred, percent predicted.

*

(measured / predicted) × 100