Table 1

Baseline lung function and markers of airway inflammation in the four groups of asthmatic patients studied

  • Mean (SE) values are shown except 1median value (interquartile range).

  • FEV1 = forced expiratory volume in one second; PEF = peak expiratory flow; PC20 = provocative concentration of methacholine causing a 20% drop in FEV1; NO = nitric oxide; ppb = parts per billion.