Table 5.
Correct use ratio at each step with five types of inhaler device
| Evohaler (n=75) | Respimat (n=46) | Turbuhaler (n=45) | Ellipta (n=74) | Breezhaler/Handihaler (n=80) | p-value | ||
|---|---|---|---|---|---|---|---|
| Assembling | |||||||
| 1st visit | 48 (64) | 42 (91.3) | 32 (71.1) | 74 (100) | 80 (100) | <0.001 | |
| 2nd visit | 48 (77.4) | 37 (97.4) | 37 (97.4) | 62 (95.4) | 73 (97.3) | <0.001 | |
| Holding the inhaler correctly | |||||||
| 1st visit | 71 (94.7) | 41 (89.1) | 45 (100) | 67 (90.5) | 75 (93.8) | 0.166 | |
| 2nd visit | 59 (95.2) | 37 (97.4) | 37 (97.4) | 61 (93.8) | 66 (88.0) | 0.313 | |
| Breathing out fully | |||||||
| 1st visit | 24 (32) | 24 (52.2) | 14 (31.1) | 25 (33.8) | 23 (28.8) | 0.105 | |
| 2nd visit | 35 (56.5) | 17 (44.7) | 16 (42.1) | 25 (38.5) | 30 (40.0) | 0.267 | |
| Inhalation | |||||||
| 1st visit | 36 (48.0) | 28 (60.9) | 42 (93.3) | 61 (82.4) | 66 (82.5) | <0.001 | |
| 2nd visit | 42 (67.7) | 33 (86.8) | 34 (89.5) | 57 (87.7) | 64 (85.3) | 0.023 | |
| Holding the breath | |||||||
| 1st visit | 38 (50.7) | 24 (52.2) | 34 (75.6) | 39 (52.7) | 32 (40.0) | 0.005 | |
| 2nd visit | 50 (80.6) | 31 (81.6) | 32 (84.2) | 45 (69.2) | 54 (72.0) | 0.186 | |
Values are presented as number (%) of patients performing the device correctly to the total number of patients. Inhalation included coordination between inhalation and actuation. Fisher exact test was done. 1st visit patients n=320, 2nd visit patients n=278 (Evohaler, n=62; Respimat, n=38; Turbuhaler, n=38; Ellipta, n=65; and Breezhaler/Handihaler, n=75).