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Table 4 Total serum IgE reference intervals.

From: Asthma biomarkers in the age of biologics

Age

Reference interval (IU/mL)

6–12 months

2–34

1–2 years

2–97

3 years

2–199

4–6 years

2–307

7–8 years

2–403

9–12 years

2–696

13–15 years

2–629

16–17 years

2–537

≥ 18 years

2–214