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Patient evaluation on usability (n; %)
| Score | Patient’s Understanding | Correct use by patient | Administration | Mobility |
|---|---|---|---|---|
| Very Difficult | 0 (0) | 0 (0) | 0 (0) | 0 (0) |
| Difficult | 2 (2.1) | 0 (0) | 2 (2.1) | 0 (0) |
| Normal | 7 (7.4) | 4 (4.2) | 2 (2.1) | 1 (1.1) |
| Easy | 76 (80) | 76 (80) | 75 (78.9) | 75 (78.9) |
| Very easy | 8 (8.4) | 11 (11.6) | 12 (12.6) | 14 (14.7) |
| unknown | 2 (2.1) | 4 (4.2) | 4 (4.2) | 5 (5.3) |
