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Positive rates of sIgE to aeroallergens in all age groups. The total number of cases in each age group: age 0–3 (n = 2695), 4–6 (n = 1887), 7–9 (n = 543), 10–12 (n = 314), 13–15 (n = 113), 16–18 (n = 63), 19–21 (n = 54), 22–40 (n = 683), 41–60 (n = 555), > 60 (n = 140).
