Table 2 Baseline characteristics for respondents in all and divided according to tested device
All | Tested device | P | |||
|---|---|---|---|---|---|
A | B | C | |||
Mean age (SD) | 55.2 ± 18.3 | 55.2 ± 18.3 | 54.8 ± 17.5 | 56.2 ± 18.3 | 0.99 |
Sex (% male) | 46.5 % | 46.5 % | 49.4 % | 45.3 % | 0.99 |
Disease (% COPD) | 47.4 % | 47.4 % | 47.7 % | 46.9 % | >0.99 |
Previous experience with inhalation devices | 63.7 % | 63.7 % | 66.7 % | 63.2 % | 0.98 |
Previous instruction to use of inhalation devices | 60.7 % | 60.7 % | 64.1 % | 61.6 % | >0.99 |