Table 1—

Patient characteristics in mild-to-moderate and severe asthma

Mild-to-moderate asthmaSevere asthmap-value
Subjects n1714
Age yrs35.7±10.943.4±16.60.13
Sex female %59570.93
Inhaled steroid µg445±1851155±4550.000
Oral steroid n060.004
PbFEV1 % pred102 (80–120)89 (40–109)0.04
Reversibility %11.0 (1–29.2)7.2 (0–22.5)0.003
  • Data are presented as mean±sd or median (range), unless otherwise stated. Pb: post-bronchodilator; FEV1: forced expiratory volume in one second; % pred: per cent predicted.