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GOLD Staging System for
Chronic Obstructive Lung Disease (COPD)
Severity
Definition
COPD is a disease
state characterized by airflow
limitation that is not fully
reversible. The airflow limitation
is usually both progressive and
associated with an abnormal
inflammatory response of the lungs
to noxious particles or gases.
GOLD Staging
System for COPD Severity
|
Stage |
Description |
Findings
(based on postbronchodilator
FEV1) |
|
0 |
At risk |
Risk factors
and chronic symptoms but normal
spirometry |
|
I |
Mild |
FEV1/FVC
ratio less than 70 percent
FEV1 at least
80 percent of predicted value
May have
symptoms |
|
II |
Moderate |
FEV1/FVC
ratio less than 70 percent
FEV1 50
percent to less than 80 percent
of predicted value
May have
chronic symptoms |
|
III |
Severe |
FEV1/FVC
ratio less than 70 percent
FEV1 30
percent to less than 50 percent
of predicted value
May have
chronic symptoms |
|
IV |
Very severe |
FEV1/FVC
ratio less than 70 percent
FEV1 less
than 30 percent of predicted
value
or
FEV1 less
than 50 percent of predicted
value plus severe chronic
symptoms |
GOLD = Global
Initiative for Chronic Obstructive
Lung Disease; COPD = chronic
obstructive pulmonary disease; FEV1
= forced expiratory volume in one
second; FVC = forced vital capacity.
Related Criteria
Light Criteria for Exudative Pleural Effusion
GINA Classification of Asthma Severity
Indications
for Lung Biopsy
ATS/ERS Criteria for Diagnosis
of Idiopathic Pulmonary Fibrosis (IPF)
in Absence of Surgical Lung Biopsy
More...
References:
-
Global
Initiative for Chronic
Obstructive Lung Disease.
Global strategy for the
diagnosis, management, and
prevention of chronic
obstructive pulmonary disease.
Updated 2005. Accessed online
April 01, 2006.
[Summary]
-
Dewar M,
Curry RW Jr. Chronic
obstructive pulmonary disease:
diagnostic considerations. Am
Fam Physician. 2006 Feb
15;73(4):669-76.
[Medline]
-
Pierson DJ.
Clinical practice guidelines
for chronic obstructive
pulmonary disease: a review
and comparison of current
resources. Respir Care. 2006
Mar;51(3):277-88.
[Medline]
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