Table 5– Retrospective cohort: inflammatory characteristics of asthmatics (n=508) according to blood and sputum eosinophil count
Blood eosinophils <400 cells per mm3, sputum eosinophils <3%#Blood eosinophils <400 cells per mm3, sputum eosinophils ≥3%Blood eosinophils ≥400 cells per mm3, sputum eosinophils <3%Blood eosinophils ≥400 cells per mm3, sputum eosinophils ≥3%
IgE kU·L−187 (1–7338)211 (3–6785)***180 (13–2329)*225 (1–17183)***
Blood eosinophils %1.7 (0–5.4)3.2 (0–7)***6 (0.3–15)***8 (0.4–30)***
Blood eosinophils per mm3140 (0–380)250 (0–390)***490 (400–1220)***590 (400–3220)***
Blood neutrophils %59 (27–82)57 (34–91)57 (41–76)52 (32–67)***
Blood neutrophils per mm34180 (76–11 080)4370 (2290–15 410)5040 (1760–10 010)3965 (1820–8670)
Sputum eosinophils %0.3 (0–2.9)9 (3–79)***0.6 (0–2.8)26 (3.2–94)***
Sputum eosinophils per mm32.7 (0–1020)70 (6–5226)***4.8 (0–1796)287 (5–33 375)***
Sputum neutrophils %58 (0–100)39 (0–90)***57 (0.2–99)30 (0.2–91)***
Sputum neutrophils per mm3422 (0–73 440)334 (1–9588)560 (14–160 974)259 (1–15 441)
Fibrinogen g·L−13.2 (1.9–10)3 (2–6)3.3 (2.6–5)3.4 (2.2–7)
CRP mg·L−11.7 (0.2–10)2 (0.2–14)1.4 (0.5–4)1.6 (0.2–13)
FeNO ppb17 (0–192)37 (2–222)***32 (5–93)**77 (11–247)***
  • Data are presented as median (range). CRP: C-reactive protein; FeNO: exhaled nitric oxide. #: comparator group. *: p<0.05; **: p<0.01; ***: p<0.001.