From: A randomised pragmatic trial of corticosteroid optimization in severe asthma using a composite biomarker algorithm to adjust corticosteroid dose versus standard care: study protocol for a randomised trial
Scoring system
0
1
2
Fractional exhaled NO (ppb)
< 15
≥ 15 to < 30
≥ 30
Blood eosinophil count (N/μL)
< 150
≥ 150 to < 300
≥ 300
Periostin (ng/ml)
< 45
≥ 45 to < 55
≥ 55