Table 4 Observed means and standard deviations for EDE-Q total and subscales scores and frequencies of eating disorder behaviours (objective binge eating, vomiting, use of laxatives) across different assessment points
| Â | Pre-intervention | Post-intervention | 3-month follow up | 6-month follow up | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total N = 50 | PY Peers n = 17 | PY n = 17 | Control n = 16 | pa | PY Peers n = 2 | PY n = 6 | Control n = 7 | PY Peers n = 3 | PY n = 4 | PY Peers n = 1 | PY n = 4 | |
EDE-Q Total (M, SD) | 3.28 (1.02) | 3.35 (0.83) | 3.38 (1.32) | 3.10 (0.88) | 0.708 | 0.89 (0.57) | 3.80 (1.80) | 3.38 (1.59) | 2.02 (1.47) | 3.13 (2.16) | 1.21 | 3.74 (1.45) |
Restraint (M, SD) | 2.94 (1.42) | 2.80 (1.22) | 3.05 (1.60) | 2.96 (1.42) | 0.871 | 0.40 (0.57) | 3.57 (1.89) | 3.63 (1.97) | 0.87 (0.90) | 3.10 (2.20) | 0.60 | 3.40 (1.90) |
Eating Concern (M, SD) | 2.16 (1.14) | 2.33 (1.00) | 2.08 (1.47) | 2.06 (0.89) | 0.758 | 0.40 (0.57) | 3.17 (1.89) | 2.17 (1.66) | 1.07 (1.36) | 2.15 (1.84) | 0.60 | 2.75 (1.34) |
Shape Concern (M, SD) | 4.28 (1.00) | 4.43 (0.76) | 4.49 (1.61) | 3.91 (1.01) | 0.192 | 1.25 (0.18) | 4.48 (1.79) | 3.98 (1.73) | 3.08 (1.95) | 3.94 (2.53) | 1.63 | 4.56 (1.38) |
Weight Concern (M, SD) | 3.75 (1.19) | 3.85 (1.12) | 3.89 (1.42) | 3.49 (1.02) | 0.577 | 1.50 (0.99) | 4.00 (1.93) | 3.74 (1.37) | 3.07 (2.25) | 3.35 (2.33) | 2.00 | 4.25 (1.24) |
OBE (N, %) | Â | Â | Â | Â | 0.341 | Â | Â | Â | Â | Â | Â | Â |
 No OBE | 15 (30) | 3 (17.6) | 7 (41.2) | 5 (31.3) |  | 1 (50) | 1 (16.7) | 1 (14.3) | 2 (66.7) | 3 (75) | 1 (100) | 1 (25) |
 OBE 1–3 | 14 (28) | 5 (29.4) | 6 (35.3) | 3 (18.8) |  | 1 (50) | 1 (16.7) | 2 (28.6) | 0 | 0 | 0 | 2 (50) |
 OBE ≥ 4 | 21 (42) | 9 (52.9) | 4 (23.5) | 8 (50) |  | 0 | 4 (66.7) | 4 (57.1) | 1 (33.3) | 1 (25) | 0 | 1 (25) |
Vomiting (N, %) | Â | Â | Â | Â | 0.897 | Â | Â | Â | Â | Â | Â | Â |
 No vomiting | 45 (90) | 16 (94.1) | 15 (88.2) | 14 (87.5) |  | 2 (100) | 4 (66.7) | 7 (86.7) | 3 (100) | 4 (100) | 1 (100) | 3 (75) |
 1–3 vomiting | 3 (6) | 1 (5.9) | 1 (5.9) | 1 (6.3) |  | 0 | 1 (16.7) | 1 (6.7) | 0 | 0 | 0 | 1 (25) |
 ≥ 4 vomiting | 2 (4) | 0 | 1 (5.9) | 1 (6.3.) |  | 0 | 1(16.7) | 1 (6.7) | 0 | 0 | 0 | 0 |
Use of laxatives (N, %) | Â | Â | Â | Â | 0.380 | Â | Â | Â | Â | Â | Â | Â |
 No use of lax | 46 (92) | 17 (100) | 14 (82.4) | 15 (93.8) |  | 2 (100) | 5 (83.5) | 6 (85.7) | 3 (100) | 4 (100) | 1 (100) | 2 (50) |
 1–3 use of lax | 3 (6) | 0 | 2 (11.8) | 1 (6.3) |  | 0 | 0 | 1 (6.7) | 0 | 0 | 0 | 0 |
 ≥ 4 use of lax | 1 (2) | 0 | 1 (5.9) | 0 |  | 0 | 1 (16.7) | 0 | 0 | 0 | 0 | 2 (50) |