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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Ann Allergy Asthma Immunol. 2018 Feb 19;120(4):401–408. doi: 10.1016/j.anai.2018.02.013

Figure 2.

Figure 2

Asthma severity algorithm. Step 1 determined asthma severity based on reported prescribed controller medication requirements. Because <50% of participants reported being prescribed a controller asthma medication, Step 2 determined asthma severity based on reported symptoms, rescue medication use, activity limits, and healthcare utilization. Asthma severity was defined as the most severe category in either Step 1 or Step 2.