Table 4

Adjusted means and ranges for use of study medication and days with asthma symptoms

Study periodAdjusted meansMean difference (95% CI)p‐value
FormoterolSalbutamol
Reliever use doses per day (range)
 Period 11.36 (0–13.1)1.57 (0–20.0)−0.21 (−0.26–−0.16)<0.001
 Period 21.29 (0–16.5)1.50 (0–21.4)−0.21 (−0.26–−0.16)<0.001
 Period 31.23 (0–16.5)1.46 (0–20.7)−0.22 (−0.27–−0.17)<0.001
Percentage of days with asthma symptoms (range)
 Period 142.35 (0–100)44.37 (0–100)−2.02 (−3.16–−0.87)<0.001
 Period 241.26 (0–100)42.55 (0–100)−1.29 (−2.44–−0.14)0.029
 Period 339.49 (0–100)41.20 (0–100)−1.71 (−2.87–−0.55)0.004
  • Data were recorded during the last 2 weeks of each study period

  • Period 1: end of month 1

  • period 2: end of month 3

  • period 3: end of month 6

  • 95% CI: 95% confidence interval