Table 1.
Characteristics of the patients before and after treatment (intent to treat data set, n = 68).
| Before treatment | After treatment | ||||
|---|---|---|---|---|---|
| Mean (SD) | Mean (SD) | T-Test | p | Cohen's d | |
| Weight | |||||
| Body weight (kg) | 56.1 (8.3) | 57.1 (7.2) | −2.10 | 0.039 | −0.14 |
| Body mass index centile | 42.9 (23.2) | 46.5 (21.7) | −2.00 | 0.051 | −0.16 |
| Eating disorder psychopathology | |||||
| Overall severity (global EDE-Q) | 3.6 (1.5) | 1.8 (1.8) | 8.33 | <0.001 | 1.03 |
| Dietary restraint (EDE-Q subscale) | 3.6 (1.7) | 1.6 (1.8) | 8.36 | <0.001 | 1.14 |
| Eating concern (EDE-Q subscale) | 3.2 (1.4) | 1.5 (1.7) | 8.09 | <0.001 | 1.09 |
| Weight concern (EDE-Q subscale) | 3.5 (1.8) | 1.8 (1.9) | 7.11 | <0.001 | 0.92 |
| Shape concern (EDE-Q subscale) | 4.0 (1.8) | 2.2 (2.0) | 7.43 | <0.001 | 0.95 |
| General psychiatric features, GSI | 1.4 (0.7) | 0.9 (0.8) | 6.27 | <0.001 | 0.66 |
| N (%) | N (%) | McNemar test or Fisher exact test | p | ||
| Global EDE-Q <1 SD above the community meana | 17 (25.0) | 46 (67.6) | 27.03 | 0.001 | |
| Eating disorder behaviour (EDE-Q) | |||||
| Objective bulimic episodes ≥1 | 37 (54.4) | 17 (25.0) | <0.001 | ||
| Self-induced vomiting ≥1 | 27 (39.7) | 12 (17.6) | <0.001 | ||
| Laxative taking ≥1 | 9 (13.2) | 5 (7.4) | 0.289 | ||
| Absence of all of the above | 18 (26.5) | 41 (60.3) | 17.93 | <0.001 | |
| Cessation of all of the above, if present at baseline | – | 25/50 (50.0%) | – | – | |
| Median (range) | Median (range) | Wilcoxon test | p | r | |
| Objective bulimic episodes (N) | 1 (0–84) | 0 (0–35) | −3.98 | <0.001 | 0.48 |
| Self-induced vomiting (N) | 0 (0–80) | 0 (0–65) | −3.63 | 0.001 | 0.44 |
| Laxative taking (N) | 0 (0–30) | 0 (0–15) | −1.40 | 0.161 | 0.17 |
EDE-Q – Eating Disorder Examination-Questionnaire (version 6.0); GSI – Global severity index.
a
Global EDE-Q less than 1 SD above community EDE-Q mean for young adult women (i.e., below 2.77).