Fig. 5From: Inhaler devices in asthma and COPD patients – a prospective cross-sectional study on inhaler preferences and error ratesSum of individual ratings for 10 placebo inhaler devices | Sum of the inhaler device ratings from Fig. 4a and b. The best possible rating was 50 points, the worst 10 points. The dotted line shows the evaluation mean sum across all 10 devices (31.56). *Elpenhaler vs. other devices p < 0.05Back to article page