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Table 1 Characteristics of the asthmatic subjects examined

From: Increase in markers of airway inflammation after ozone exposure can be observed also in stable treated asthmatics with minimal functional response to ozone

 

All subjects

Responders

Nonresponders

Number

23

8

15

Age, yrs (M ± SD)

32.6 ± 10.8

31.1 ± 13.2

33.4 ± 9.8

Sex (Male/Female)

13/10

6/2

7/8

Atopy (yes/no)

17/6

5/3

12/3

Smoking habit (yes/ex/no)

0/5/18

0/2/6

0/3/12

FEV1, % predicted (M ± SD)

96.9 ± 12.0

93.4 ± 15.9

98.8 ± 9.4

PD20FEV1 meth, mg (GM)

0.263

0.366

0.218

ICS, μg/d (median, range)

500(200-1000)

500(250-1000)

500(200-1000)

  1. FEV1:Forced expiratory volume in one second ; M ± SD: mean ± standard deviation; GM: geometric mean. PD20FEV1 meth: cumulative dose of methacoline provoking a 20% decrease in FEV1 from baseline value; ICS: Inhaled corticosteroids.