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Table 1 Baseline demographics of the subjects in each study group

From: Effects of controlled diesel exhaust exposure on apoptosis and proliferation markers in bronchial epithelium – an in vivo bronchoscopy study on asthmatics, rhinitics and healthy subjects

 

Healthy controls

Allergic rhinitis

Allergic asthma β2-agonists on demand

Allergic asthma ICS-treatment

Number in group

21

13

16

16

Mean age years (range)

24 (21–29)

25 (22–34)

24 (18–32)

24 (19–41)

Gender (male:female)

12:9

6:7

8:8

8:8

FEV1 (% predicted)

98 ± 15

97 ± 15

99 ± 15

93 ± 8

PC20 (mg/mL)a

Not assessed

>8.0

2.7 ± 1.8

>8.0

Skin prick test to pollens

Negative

Positive

Positive

Positive

SM eosinophils (cells/mlx104)a

0.0 (0.0-0.0)

0.4 (0.0-1.2)

0.1 (0.0-1.2)

0.0 (0.0-0.3)

SM mast cells (cells/mlx104)

19 (11–27)

16 (14–28)

27 (18–31)

16 (12–22)

SM neutrophils (cells/mlx104)a

61 (30–78)

57 (26–102)

47 (19–97)

98 (75–124)

  1. SM = Submucosa. aSM-eosinophils and SM neutrophils were significantly different between the four groups, Kruskal-Wallis Test 0.017 and 0.033 respectively. Data previously published [7, 29]