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Number of critical mistakes and need of technique adjustment according to DPI device.
| DPI device | Critical technique mistakes, n (%) | Need of technique adjustment, n (%) | Number of patients evaluated |
|---|---|---|---|
| Accuhaler | 30 (19.5) | 106 (68.8) | 154 |
| Easyhaler | 13 (10.3) | 43 (34.4) | 126 |
| Nexthaler | 17 (16.0) | 52 (51.5%) | 106 |
| Turbuhaler | 36 (17.5) | 120 (58.3%) | 206 |
DPI dry powder inhaler.
