Asthma Management Handbook
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Table. Interpretation of Asthma Score (Asthma Control Test)

Score Interpretation
≥ 20 Well-controlled asthma
≤ 15 Uncontrolled asthma
Change of ≥ 3 points Clinically important change in an individual patient


Schatz M, Sorkness CA, Li JT et al. Asthma Control Test: reliability, validity, and responsiveness in patients not previously followed by asthma specialists. J Allergy Clin Immunol 2006; 117: 549-56. Available from:

Schatz M, Kosinski M, Yarlas AS et al. The minimally important difference of the Asthma Control Test. J Allergy Clin Immunol 2009; 124: 719-23. Available from:

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