Table 2.
Inhaler Technique – Mean Number, Range and Percentage of Correct Steps at Each Visit
| Inhaler | Number of Steps | Visit 1 (N=35) Mean Steps ± SD (Range)/(%Correct Steps) | Visit 2 (N = 30) Mean Steps ± SD (Range)/(%Correct Steps) | Visit 3 (N = 26) Mean Steps ± SD (Range)/(%Correct Steps) |
|---|---|---|---|---|
| Accuhaler® | 10 | (n=4) 7.5 ± 1.7 (5–9)/(75%) |
(n=3) 8.4 ± 0.5 (8–9)/(84%) |
(n=2) 10/(100%) |
| pMDI+spacer | 10 | (n=4) 9.3 ± 0.9 (8–10)/(93%) |
(n=4) 9.0 ± 0.8 (8–10)/(90%) |
(n=2) 9.3 ± 0.8 (8–10)/(93%) |
| Turbuhaler® | 12 | (n=4) 9.5 ± 1.0 (8–10)/(79%) |
(n=5) 11.4 ± 0.9 (10–12)/(95%) |
(n=7) 10.8 ± 1.2 (9–12)/(90%) |
| Handihaler® | 19 | (n=10) 14.6 ± 4.3 (8–19)/(77%) |
(n=10) 16.2 ± 1.8 (13–17)/(85%) |
(n=5) 14.4 ± 3.6 (10–17)/(76%) |
| pMDI | 13 | (n=8) 7.2 ± 3.3 (5–12)/(55%) |
(n=3) 13/(100%) |
(n=1) 13/(100%) |
| Breezhaler® | 17 | (n=2) 16.5 ± 0.7 (16–17)/(97%) |
(n=2) 16.5 ± 0.7 (16–17)/(97%) |
(n=3) 13.3 ± 4.0 (9–17)/(78%) |
| Ellipta® | 10 | (n=12) 7.9 ± 1.2 (6–10)/(79%) |
(n=11) 9.7 ± 0.5 (9–10)/(97%) |
(n=11) 9.2 ± 0.9 (8–10)/(92%) |
| Genuair® | 12 | (n=4) 8.0 ± 2.9 (5–12)/(67%) |
(n=3) 10.3 ± 0.6 (10–11)/(86%) |
(n=1) 11/(92%) |
| Respimat® | 11 | (n=11) 9.4 ± 1.9 (6–11)/(85%) |
(n=10) 10.4 ± 0.8 (9–11)/(95%) |
(n=8) 10.5 ± 0.5 (10–11)/(95%) |
Abbreviations: ®, registered trademark; SD, standard deviation.