Table 3 Adolescent reported primary and secondary outcomes, median distribution at baseline, 15 weeks and 6 months post randomization n=161
| Â | Group median (25th percentile, 75th percentile) | Â | |
|---|---|---|---|
Outcome | Control N  = 82 | Intervention N  = 79 | P -value 1 |
Transition-Q (range: 0 – 100. higher scores indicate better self-management skills) | |||
 Baseline | 56.0 (50.0, 63.0) | 61.0 (50.0, 68.0) | 0.441 |
 15 weeks | 58.0 (47.8, 68.0) | 58.0 (50.0, 70.0) | 0.613 |
 6 months | 58.0 (50.0, 66.5) | 61.0 (50.0, 73.0) | 0.656 |
Pain interference (range: 34–78, higher scores indicate higher pain intensity) | |||
 Baseline | 52.7 (40.6, 57.6) | 53.7 (45.8, 59.5) | 0.416 |
 15 weeks | 54.2 (40.6, 59.5) | 51.7 (41.7, 57.6) | 0.514 |
 6 months | 48.4 (39.2, 58.5) | 53.7 (43.4, 59.0) | 0.284 |
Anxiety (range: 0–82, higher scores indicate greater anxiety symptoms) | |||
 Baseline | 26.0 (12.0, 39.0) | 22.0 (12.2, 36.0) | 0.401 |
 15 weeks | 28.0 (14.3, 37.0) | 21.0 (11.0, 40.5) | 0.577 |
 6 months | 22.0 (9.3, 34.8) | 24.0 (11.5, 40.0) | 0.430 |
Depression (0 to 60, higher scores indicate greater levels of depression) | |||
 Baseline | 14.0 (8.0, 25.0) | 13.0 (7.0, 23.0) | 0.574 |
 15 weeks | 16.0 (11.0, 24.0) | 14.0 (8.0, 22.5) | 0.279 |
 6 months | 14.0 (9.0, 24.0) | 16.0 (7.5, 26.0) | 0.737 |
Subscales of PedsQL(all subscales range from 0–100, higher scores indicate lower problems) | |||
Pain | Â | Â | Â |
 Baseline | 56.3 (37.5, 75.0) | 50.0 (31.3, 78.1) | 0.466 |
 15 weeks | 68.8 (50.0, 81.3) | 50.0 (40.6, 68.8) | 0.042 |
 6 months | 62.5 (50.0, 81.3) | 46.9 (35.9, 75.0) | 0.009 |
Activities | |||
 Baseline | 100.0 (80.0, 100.0) | 100.0 (77.5, 100.0) | 0.502 |
 15 weeks | 100.0 (85.0, 100.0) | 95.0 (67.5, 100.0) | 0.310 |
 6 months | 100.0 (85.0, 100.0) | 95.0 (78.8, 100.0) | 0.143 |
Treatment | Â | Â | Â |
 Baseline | 75.0 (57.1, 89.3) | 75.0 (58.9, 82.1) | 0.800 |
 15 weeks | 78.6 (61.6, 89.3) | 67.9 (53.6, 87.5) | 0.313 |
 6 months | 82.1 (64.3, 89.3) | 73.2 (57.1, 89.3) | 0.144 |
Worry | Â | Â | Â |
 Baseline | 58.3 (41.7, 83.3) | 58.3 (41.7, 75.0) | 0.552 |
 15 weeks | 66.7 (50.0, 83.3) | 58.3 (45.8, 75.0) | 0.260 |
 6 months | 66.7 (50.0, 91.7) | 58.3 (41.7, 75.0) | 0.065 |
Communication | Â | Â | Â |
 Baseline | 66.7 (50.0, 83.3) | 75.0 (50.0, 91.7) | 0.190 |
 15 weeks | 75.0 (50.0, 91.7) | 75.0 (50.0, 91.7) | 0.703 |
 6 months | 66.7 (54.2, 91.7) | 66.7 (50.0, 83.3) | 0.398 |
MEPS and subscales (total score range: 0 – 230; mean subscale scores range: 0 – 90, higher scores indicate greater knowledge) | |||
Total score | Â | Â | Â |
 Baseline | 118.0 (93.0, 142.0) | 115.0 (97.0, 129.0) | 0.519 |
 15 weeks | 121.0 (99.0, 137.0) | 118.0 (104.5, 131.5) | 0.937 |
 6 months | 127.5 (107.0, 148.2) | 114.0 (103.0, 141.0) | 0.210 |
Knowledge | Â | Â | Â |
 Baseline | 37.0 (23.0, 49.0) | 36.0 (24.5, 44.5) | 0.877 |
 15 weeks | 36.0 (28.0, 45.0) | 39.0 (27.0, 47.0) | 0.544 |
 6 months | 42.0 (26.3, 54.0) | 38.0 (29.0, 50.0) | 0.772 |
Pain | Â | Â | Â |
 Baseline | 35.0 (27.0, 44.0) | 33.0 (23.0, 41.0) | 0.227 |
 15 weeks | 35.0 (27.0, 42.0) | 34.0 (28.5, 41.0) | 0.680 |
 6 months | 40.5 (30.0, 48.8) | 33.0 (25.0, 41.0) | 0.030 |
Social | Â | Â | Â |
 Baseline | 19.0 (14.0, 26.0) | 20.0 (15.5, 24.0) | 0.993 |
 15 weeks | 20.0 (16.0, 24.0) | 22.0 (17.5, 29.5) | 0.039 |
 6 months | 19.5 (15.0, 26.8) | 21.0 (14.0, 27.0) | 0.879 |
Exercise | Â | Â | Â |
 Baseline | 27.0 (19.0, 36.0) | 29.0 (20.0, 33.5) | 0.800 |
 15 weeks | 28.0 (20.0, 34.0) | 24.0 (20.0, 31.0) | 0.133 |
 6 months | 26.0 (20.0, 35.8) | 25.0 (20.0, 31.0) | 0.441 |
Self-efficacy total score and domains (Mean total scores range: 11 – 55, mean subscale score range: 1–5, higher scores indicating better self-efficacy) | |||
Total score | Â | Â | Â |
 Baseline | 34.0 (28.5, 40.5) | 35.0 (28.0, 44.0) | 0.626 |
 15 weeks | 36.5 (31.0, 40.0) | 36.0 (30.0, 40.0) | 0.847 |
 6 months | 38.0 (32.0, 46.0) | 35.0 (28.0, 41.0) | 0.041 |
Activity | Â | Â | Â |
 Baseline | 3.7 (2.7, 4.7) | 4.0 (2.7, 4.3) | 0.867 |
 15 weeks | 3.7 (3.0, 4.7) | 3.3 (3.0, 4.0) | 0.248 |
 6 months | 4.0 (3.0, 5.0) | 3.7 (3.0, 4.0) | 0.114 |
Emotional | Â | Â | Â |
 Baseline | 3.0 (2.4, 4.0) | 3.5 (2.3, 4.3) | 0.274 |
 15 weeks | 3.3 (2.8, 4.2) | 3.3 (3.0, 4.0) | 0.956 |
 6 months | 3.5 (2.9, 4.6) | 3.3 (2.5, 4.0) | 0.088 |
Symptoms | Â | Â | Â |
 Baseline | 3.0 (2.5, 3.7) | 3.0 (2.3, 3.7) | 0.852 |
 15 weeks | 3.3 (2.8, 3.8) | 3.0 (2.8, 3.7) | 0.405 |
 6 months | 3.5 (3.0, 4.3) | 3.2 (2.5, 3.8) | 0.013 |
Perceived social support (range: 34–78, higher scores indicate better peer reltionships) | |||
 Baseline | 44.3 (39.8, 50.9) | 46.7 (39.8, 52.6) | 0.314 |
 15 weeks | 45.5 (39.8, 56.8) | 44.9 (37.7, 56.8) | 0.670 |
 6 months | 45.5 (39.8, 51.8) | 45.5 (38.8, 50.9) | 0.506 |