Table 2—

Patient baseline characteristics (all treatment groups pooled)

CharacteristicStudy 1Study 2
Sample size n895681
Age yrs (range)38 (15–85)33 (15–79)
Sex: male (%)354 (40%)305 (45%)
Sex: female (%)541 (60%)376 (55%)
FEV1 L2.2±0.62.5±0.7
FEV1 % predicted65.2±10.466.8±10.8
Measured-at-clinic PEF (L·min−1)352.9±123.2388.1±117.4
Patient-reported morning PEF (L·min−1)334.9±97.4385.3±88.8
Daytime symptom score (0–6)2.4±0.92.5±0.8
“As-needed” β-agonist use puffs·day−15.5±3.85.4±3.2
  • Results expressed as mean±sd unless otherwise stated

  • FEV1: forced expired volume in one second

  • PEF: peak expiratory flow