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Table 5 Laboratory results of children with severe asthma (SA) and non-severe persistent asthma (NSPA)

From: Severe asthma features in children: a case–control online survey

  SA NSPA p
(n = 41) (n = 78)
Eosinophil count, 106 · L−1 420 (10–1340) 485 (3–2420) 1
Serum total IgE levels, kUA/L 506 (27–4100) 541 (39–15850) 0.9
FENO, ppb 30 (2–196) 21 (2–156) 0.3
Spirometry data    
 FVC, z score −0.3 (−4.1–2.1) 0.2 (−3.4–2.9) 0.08
 FEV1, z score −1.4 (−4.4–2.3) −0.2 (−3.3–2.4) <0.001
 FEV1/FVC, z score −1.7 (−3.7–2.9) −0.1 (−2.9–3.0) <0.001
 FEF25–75, z score −2.0 (−5.2–2.5) −0.5 (−3.8–2.0) <0.001
  1. FENO, fraction of exhaled nitric oxide; FVC, forced vital capacity; FEV1, forced expiratory volume at 1 s; FEF25–75, forced expiratory flow between 25 % and 75 % of vital capacity
  2. Data are presented as median values (range)