Table 2

Characteristics of participants taking part in the immunohistochemistry and western blotting studies

ParticipantsnAgeSexSmoking historyPack-yearsChronic bronchitisFEV1 % predFEV1/FVC%
Non-smokers971.2 (9.7)3M/6FAll never00111.1 (16.4)84.6 (6.7)
Smokers1368.7 (7.5)11M/2F

  • 6 ex,

  • 5 current

33.7 (20)596.7 (19.6)77.6 (4.5)
COPD1470.9 (4.1)11M

  • 5 ex,

  • 4 current

37.7 (23.8)970.2 (16.2)61 (7.8)

  • For chronic obstructive pulmonary disease (COPD) and smokers with normal lung function predicted forced expiratory volume in 1 s (FEV1% pred) and FEV1/forced vital capacity (FVC)% are post-bronchodilator values.

  • M, male; F, female. Data expressed as mean (SD).