| Item | Questions (standard response) | Floor-ceiling effect | Missing data | Factorial analysis | QASICC final | Factor | ||||
| No. | No. (%) | No. (%) | Fact. 1 | Fact. 2 | Fact. 3 | Fact. 4 | Fact. 5 | No. final | (Dimension) | |
| 1 | Is your device too visible? (b) | 56 (37.0) - 97 (63.0) | 62 (28.8) | 0.37 | Q11 | 1 | ||||
| 2 | Did it hurt when the device is inserted? (f) | [0-0.2-1.0-3.2-10]* | 71 (33.0) | Q1 | 6 | |||||
| 3 | Does your device hurt when the needle is inserted? (e) | 3 (1.9) - 88 (56.0) | 58 (27.0) | Q2 (G: 3, 4, 5) | 6 | |||||
| 4 | Does your device hurt during the drug infusion? (e) | 0 (0.0) - 131 (89.7) | 69 (32.1) | Q2 (G: 3, 4, 5) | 6 | |||||
| 5 | Does your device hurt when the needle is removed? (e) | 2 (1.4) - 112 (76.7) | 69 (32.1) | Q2 (G: 3, 4, 5) | 6 | |||||