Clinical characteristics of study participants
| Group; mean ± SD or % | ||||
|---|---|---|---|---|
| Characteristic | Control, n = 29 | Bulimia, n = 28 | t55 | p value |
| BDI-II total | 3.59 ± 3.13 | 25.63 ± 12.43 | 9.248 | < 0.001 |
| DEBQ | ||||
| Restrained eating | 11.79 ± 8.13 | 28.89 ± 7.76 | 8.119 | < 0.001 |
| Emotional eating | 7.28 ± 4.74 | 28.45 ± 8.05 | 12.148 | < 0.001 |
| External eating | 18.38 ± 6.68 | 25.14 ± 7.31 | 3.649 | < 0.001 |
| BIS-11 | ||||
| Total score | 58.48 ± 6.44 | 61.81 ± 8.96 | 1.606 | 0.11 |
| Attentional impulsiveness | 14.52 ± 2.08 | 17.89 ± 3.71 | 4.229 | < 0.001 |
| Motor impulsiveness | 21.28 ± 3.02 | 19.00 ± 3.68 | −2.537 | 0.014 |
| Nonplanning impulsiveness | 22.69 ± 3.53 | 24.93 ± 5.12 | 1.915 | 0.06 |
| Objective binge eating episodes/wk | — | 3.71 ± 2.53 | — | — |
| Purging-type (self-induced vomiting, laxative misuse, diuretics) | — | 85.71 | — | — |
| Disorder duration, yr | — | 10.19 ± 11.35 | — | — |
| Antidepressants | — | 25.00 | — | — |
| Current psychotherapy | — | 53.57 | — | — |
| Subclinical bulimia* | — | 3.57 | — | — |
BDI = Beck Depression Inventory-II; BIS-11 = Barratt Impulsiveness Scale; DEBQ = Dutch Eating Behaviour Questionnaire; SD = standard deviation.
↵* Patient with subclinical bulimia nervosa with no binge eating episodes during the 28 d before participation.