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Table 1 Subject characteristics

From: Persistence of oxidant and protease burden in the airways after smoking cessation

  Non symptomatic Bronchitis/COPD Asthma
Number 25 21 15
Age, yr 41 (18–64) 56 (41–72) 42 (18–58)
Sex M/F 11/14 7/14 5/10
FEV1 (%pred) 97,8 (86–126) 76,8 (25–109) 95,6 (61–127)
FVC (%pred) 98,6 (40–124) 99 (50–203) 100,5 (36–139)
FEV1/FVC ratio% 82,6 (71–109) 66,7 (28–87) 76,6 (74–79)
DLCO/VA 87 (50–118) 53,3 (28–77) 85,4 (57–107)
Pack years 22 (4,5–60) 39 (17–75) 22 (6–48)