Table 5.
Variable | All participants (n = 340) |
ICBT (n = 79) |
ICBT-extension (n = 87) |
ICBT-booster (n = 84) |
ICBT-extension + booster (n = 90) |
|||||
---|---|---|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | n | % | n | % | |
Week 26 ratings1 | (n = 285) | (n = 67) | (n = 70) | (n = 69) | (n = 79) | |||||
Mean credibility (SD) | 22.42 (4.85) | – | 21.91 (5.21) | – | 22.61 (5.47) | – | 23.14 (3.65) | – | 22.05 (4.87) | – |
Satisfied/very satisfied overall | 243 | 85.3 | 58 | 86.6 | 57 | 81.4 | 62 | 89.9 | 66 | 83.5 |
Satisfied/very satisfied with the website | 258 | 90.5 | 60 | 89.6 | 64 | 91.4 | 63 | 91.3 | 71 | 89.9 |
Satisfied/very satisfied with materials | 251 | 88.1 | 60 | 89.6 | 60 | 85.7 | 63 | 91.3 | 68 | 60.2 |
Agreed/strongly agreed therapist knowledgeable and competent | 233 | 81.8 | 55 | 82.1 | 58 | 82.9 | 51 | 73.9 | 69 | 87.3 |
Satisfied/very satisfied with emails | 247 | 86.7 | 58 | 86.6 | 60 | 85.7 | 60 | 87.0 | 69 | 87.3 |
Satisfied/very satisfied with telephone calls2 | 137 | 78.3 | 34 | 82.9 | 29 | 70.7 | 37 | 78.7 | 37 | 80.4 |
Increased/greatly increased confidence | 233 | 81.8 | 53 | 79.1 | 57 | 81.4 | 59 | 85.5 | 64 | 81.0 |
Increased/greatly increased motivation for other treatment | 222 | 77.9 | 50 | 74.6 | 57 | 81.4 | 55 | 79.7 | 60 | 75.9 |
Course was worth time (%) | 267 | 93.7 | 61 | 91.0 | 65 | 92.9 | 66 | 95.7 | 75 | 94.9 |
Would recommend course to friend (%) | 267 | 93.7 | 62 | 92.5 | 66 | 94.3 | 68 | 98.6 | 71 | 89.9 |
Negative effects | ||||||||||
Reported negative effects | 24 | 8.4 | 5 | 7.5 | 9 | 12.9 | 3 | 4.3 | 7 | 8.9 |
Negative effect impact (0–3) | 2.08 (1.18) | – | 2.00 (0.71) | – | 2.00 (1.32) | – | 2.00 (1.73) | – | 2.29 (1.25) | – |
Negative effect continues to have negative impact (0–3) | 1.42 (1.06) | – | 1.20 (0.45) | – | 1.33 (1.32) | – | 1.67 (0.58) | – | 1.57 (1.27) | – |
Note. ICBT = Internet-delivered Cognitive Behaviour Therapy.
Treatment ratings were also compared at Week 8 and Week 16, with no significant differences found over time or between groups (p: 0.11–0.99).
Percentages and statistical significance exclude patients who indicated ‘Not applicable’.