Table 1—

Patient characteristics

Characteristics
Subjects n (males)30±16
Age yrs50±17
Atopy n12
FEV1 % pred66±26
PC20 methacholine mg·mL−1#2.6±1.3
Steroid use n24

  • Data are presented as mean±sd unless otherwise stated

  • FEV1: forced expiratory volume in one second

  • PC20: protection concentration causing a 20% fall in FEV1

  • % pred: % predicted

  • #: geometric mean±sd