Table 1

Proportion (%) of participants who were able to use Spiromax, Easyhaler or Turbuhaler without observed errors in steps 1–3

SpiromaxEasyhalerTurbuhalerSpiromax vs Easyhaler, p valueSpiromax vs Turbuhaler, p valueEasyhaler vs Turbuhaler, p value
Step 137.509.2<0.001*<0.001<0.006*
Step 293.358.376.7<0.001<0.001<0.004
Step 399.295.899.2nsnsns
  • *One observation was added to the Easyhaler group in order to perform the statistical analysis. As such, these values might be an underestimate of the actual differences.

  • ns, not significant.