Fig. 2
From: Patients’ usability of seven most used dry-powder inhalers in COPD
Evidence network based on patients’ comparisons in the three groups, every edge between two nodes is labelled with the number of patients that compared the devices represented with previous experience in the use of DPI (in brackets those without previous experience); solid lines represent comparison in group 1, dotted lines represent comparisons in group 2 and point line represents comparison between Breezhaler and Genuair in group 3 B: Breezhaler; D: Diskus; E: Ellipta; G: Genuair; N: Nexthaler; S: Spiromax; T: Turbohaler