Table 2 Agreement Between DID-PQ Items and the Global Preference Item Assessing Preferences between Two GLP-1 Receptor Agonist Injection Devices (N = 310)
From: Validity and analysis of the Diabetes Injection Device Preference Questionnaire (DID-PQ)
Patients whose DID-PQ Responses Matched Their Responses on the Global Preference Item | ||||||||
|---|---|---|---|---|---|---|---|---|
DID-PQ Itemsa | Prefer Dulaglutide Device | No Preference between Devices | Prefer Semaglutide Device | Percent Agreement | Gwet AC1 (SE) | PABAK (SE) | Percent Disagreement | Missing DID-PQ Response |
1. Ease of preparing device and medication for use | 258 | 3 | 21 | 282 (91.0%) | 0.90 (0.02) | 0.86 (0.02) | 28 (9.0%) | 0 (0.0%) |
2. Ease of fitting injection into your routine | 233 | 9 | 24 | 266 (85.8%) | 0.83 (0.03) | 0.79 (0.03) | 44 (14.2%) | 0 (0.0%) |
3. Ease of bringing device with you when you have to inject away from home | 211 | 6 | 27 | 244 (78.7%) | 0.74 (0.03) | 0.68 (0.03) | 66 (21.3%) | 0 (0.0%) |
4. Confidence that device provides the correct dose of medication every time | 221 | 5 | 27 | 253 (81.6%) | 0.78 (0.03) | 0.72 (0.03) | 57 (18.4%) | 0 (0.0%) |
5. Confidence that you are using device correctly | 238 | 7 | 22 | 267 (86.1%) | 0.84 (0.02) | 0.80 (0.03) | 42 (13.5%) | 1 (0.3%) |
6. Size of the needle | 155 | 7 | 23 | 185 (59.7%) | 0.47 (0.04) | 0.40 (0.04) | 124 (40.0%) | 1 (0.3%) |
7. Time it takes to prepare and inject medication | 248 | 4 | 14 | 266 (85.8%) | 0.84 (0.02) | 0.79 (0.03) | 43 (13.9%) | 1 (0.3%) |
8. Overall satisfaction with device | 252 | 9 | 29 | 290 (93.5%) | 0.92 (0.02) | 0.90 (0.02) | 20 (6.5%) | 0 (0.0%) |
9. Overall ease of using device (gated secondary outcome) | 256 | 7 | 20 | 283 (91.3%) | 0.90 (0.02) | 0.87 (0.02) | 27 (8.7%) | 0 (0.0%) |
10. Overall convenience of using device | 257 | 6 | 25 | 288 (92.9%) | 0.92 (0.02) | 0.89 (0.02) | 22 (7.1%) | 0 (0.0%) |