Table 1—

Patient demographics

AsthmaticHealthy
Subjects n168
Males/females n11/54/4
Age yrs26.6 (20–36)25.6 (20–37)
Baseline FEV1 % pred92.7 (74–120)106.8 (89–127)
Height cm175.2 (160–186)179.0 (159–188)
Weight kg74.0 (56–95)79.2 (52–106)
AMP PC20 mg·mL−128.1 (0.88–136)NA
Methacholine PC20 mg·mL−11.13 (0.29–2.88)>16
  • Data are presented as geometric mean (range), unless stated otherwise. FEV1: forced expiratory volume in one second; % pred: % predicted; AMP: adenosine 5′-monophophate; PC20: provocative concentration of agent causing a 20% fall in FEV1; NA: not available.