Control (n = 16) | Asthma Mild-moderate (GINA 1 = 6, GINA 2–3 = 6) | Asthma Severe (GINA 4 = 6, GINA 5 = 6) | Eosinophilic Bronchitis (n = 7) | |
---|---|---|---|---|
Age (yrs)~ | 32.2 (2.3) | 37.3 (3.7) | 51.0 (4.3)* | 53.6 (6.2)* |
Sex M:F | 7:9 | 7:5 | 4:8 | 6:1 |
Atopy (%) | 46 | 83** | 67** | 43 |
Disease Duration (yrs) | N/A | 22.0 (3.8)** | 30.4 (4.9)** | 8.4(1.8) |
BDP Equivalent (mcg) | N/A | 355 (132) | 1633 (175) | 1149(420) |
Oral Prednisolone (mg/24 hrs) | N/A | N/A | 5.6 (2.0) | 0 |
ENO (50) (Ppb) # | 18 [9–37] | 28 [19–46] | 19 [14–25] | 34 [18–64] |
PC 20 (mg/ml)# | >16 | 1.4 [0.4–4.9]** | 0.45 [0.1–1.7]** | >16 |
FEV 1 % predicted~ | 109 (3.3) | 90 (8.7) | 78 (6.0)* | 95.7(5.6) |
FEV 1 /FVC~ | 86.3(1.7) | 79 (3.4) | 72 (3.5)* | 80.0(4.4) |
Induced sputum | ||||
Eosinophils (%)# | 0.7 [0.2–2.7] | 2.2 [0.4–13.0]* | 1.9 [0.8–4.6]* | 4.6 [1.3–16.5]* |
Neutrophils (%)~ | 43 (12.6) | 46 (9.9) | 66.5 (7.1) | 43.5(5.6) |