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GINA Classification of Asthma Severity
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Symptoms/Day
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Symptoms/Night
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PEF or FEV1
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PEF variability
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STEP 1
Intermittent
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< 1 time a week
Asymptomatic and normal PEF between attacks
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</= 2 times a month
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>/= 80%
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< 20%
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STEP 2
Mild Persistent
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> 1 time a week but < 1 time a day
Attacks may affect activity
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> 2 times a month
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>/= 80%
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20-30%
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STEP 3
Moderate Persistent
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Daily
Attacks affect activity
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> 1 time a week
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60%-80%
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> 30%
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STEP 4
Severe Persistent
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Continuous
Limited physical activity
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Frequent
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</= 60%
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> 30%
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PEF, Peak Expiratory Flow; FEV1, Forced Expiratory Volume in the first second.
• The presence of one of the features of severity is sufficient to place a patient in that category.
• Patients at any level of severity-even intermittent asthma-can have severe attacks.
Related Criteria
Light Criteria for Exudative Pleural Effusion
GOLD Staging
System for Chronic Obstructive Lung
Disease (COPD) Severity
Indications
for Lung Biopsy
ATS/ERS Criteria for Diagnosis
of Idiopathic Pulmonary Fibrosis (IPF)
in Absence of Surgical Lung Biopsy
More...
References:
- Masoli M, Fabian D, Holt S, Beasley R; Global Initiative for Asthma (GINA) Program. The global burden of asthma: executive summary of the GINA Dissemination Committee report. Allergy. 2004 May;59(5):469-78. [Medline]
- Bousquet J. Global initiative for asthma (GINA) and its objectives. Clin Exp Allergy. 2000 Jun;30 Suppl 1:2-5. [Medline]
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