Table 3.
Likert-scale score for the recall of information 48 h or more after recruitment and preferences for consent model
| Characteristic | Model of information presentation: mean (SD) [range] | Differences (95% CI) | ||||
|---|---|---|---|---|---|---|
| Standard method (n = 10) | Slide show (n = 11) | Video show (n = 9) | Slide show vs. standard | Video show vs. standard | Slide show vs. video show | |
| Understanding of aspects of the cluster randomised trial: | ||||||
| Research aim (1 = not at all, 5 = very well) | 4.3 (0.9) [2, 5] | 4.7 (0.47) [4, 5] | 5.0 (0.0) [5, 5] | 0.4 (−0.2, 1.0) | 0.7 (0.1, 1.3) | −0.3 (−0.3, 0.0) |
| Study duration (1 = not at all, 5 = very well) | 5.0 (0.0) [5, 5] | 5.0 (0.0) [5, 5] | 5.0 (0.0) [5, 5] | – | – | – |
| Treatments and procedure (1 = not at all, 5 = very well) | 3.8 (1.0) [2, 5] | 4.7 (0.47) [4, 5] | 4.9 (0.33) [4, 5] | 0.9 (0.2, 1.6) | 0.9 (0.2, 1.6) | −0.2 (−0.4, 0.0) |
| Alternatives to trial participation (1 = not at all, 5 = very well) | 4.1 (0.86) [2, 5] | 4.8 (0.40) [4, 5] | 5.0 (0.0) [5, 5] | 0.7 (0.1, 1.3) | 0.9 (0.4, 1.4) | −0.2 (−0.4, 0.0) |
| Point of contact (1 = not at all, 5 = very well) | 4.7 (0.48) [4, 5] | 4.9 (0.30) [4, 5] | 4.9 (0.33) [4, 5] | 0.2 (−0.1, 0.5) | 0.2 (−0.2, 0.6) | 0.0 (−0.3, 0.3) |
| Voluntary participation (1 = not at all, 5 = very well) | 4.8 (0.42) [4, 5] | 5.0 (0.0) [5, 5] | 5.0 (0.0) [5, 5] | 0.2 (−0.1, 0.5) | 0.2 (−0.1, 0.6) | – |
| Overall study understanding (1 = not at all, 5 = very well) | 4.5 (0.53) [4, 5] | 4.7 (0.47) [4, 5] | 4.9 (0.33) [4, 5] | 0.2 (−0.2, 0.6) | 0.4 (−0.1, 0.9) | − 0.2 (−0.6, 0.2) |
| Overall QuIC score | 89 (9) [69, 97] | 97 (3) [91, 100] | 99 (2) [94, 100] | 8 (3, 13) | 10 (5, 15) | −2 (−7, 3) |
| Consent model preferred: | ||||||
| Standard/researcher-read (1 = not at all, 5 = most) | 4.0 (0.47) [3, 5] | 3.9 (0.94) [3, 5] | 3.0 (0.0) [3, 3] | −0.1 (−0.7, 0.5) | −1.0 (−0.7, −1.3) | 0.9 (0.3, 1.5) |
| Slide-show consent (1 = not at all, 5 = most) | 4.7 (0.48) [4, 5] | 4.2 (0.60) [3, 5] | 4.8 (0.44) [4, 5] | −0.5 (−1.0, 0.0) | 0.1 (−0.3, 0.5) | −0.6 (−1.1, −0.1) |
| Video-message consent (1 = not at all, 5 = most) | 3.7 (0.82) [2, 5] | 4.3 (0.65) [3, 5] | 4.2 (0.44) [4, 5] | 0.5 (−0.1, 1.1) | 0.5 (−0.1, 1.1) | 0.1 (−0.4, 0.6) |
| Which consent model do you prefer most, n (%) | 5 (16.7) | 19 (63.3) | 6 (20) | 46.6 (27.8, 65.4) | 3.3 (−31.5, 38.1) | 43.3 (24.1, 62.5) |
CI confidence interval, QuIC Quality of Informed Consent, SD standard deviation