Table 1. Characteristics.
| Characteristics/clinical ratings | HC participants | rBN participants | T-statistic | p-value |
|---|---|---|---|---|
| Age, mean±SD, years | 27.3±9.4, range 20–53 | 29.6±8.9, range 20–49 | t35.0=−0.76 | p=0.46 |
| Years of education, mean±SD, years | 15.1±2.4 | 15.2±2.8 | t31.5=−0.12 | p=0.91 |
| Body mass index (BMI), mean±SD, kg/m2 | 24.2±3.3, range 19.3–32.2 | 21.6±2.3, range 18.4–27.6 | t35.1=2.85 | p=0.008 |
| Age at onset of BN, mean±SD, years | NA | 18.9±5.5, range 12–35 | ||
| Duration of active illness, mean±SD, months | NA | 42.4±31.1, range 6–120 | ||
| Time in remission from BN, mean±SD, months | NA | 47.1±46.5, range 4–146 | ||
| Major depression during and/or after BN, (during, after), n | NA | 12 (11, 3) | ||
| Time in remission from MDD, mean±SD, months | 55.4±63.1, range 6–228 | |||
| Mild to moderate anorectic symptoms preceding BN, n | NA | 6 | ||
| Time in remission from AN, mean±SD, months | 92.0±73.5, range 48–240 | |||
| Previous psychoactive medication (SSRI, SNRI, TCA), n | NA | 6 | ||
| Time medication free, mean±SD, months | 52.0±45.1, range 10–122 | |||
| EDE-Q global score – past (4 weeks during acute phase with most severe bulimic symptoms), mean±SD, scores | NA | 4.38±0.9 | ||
| EDE-Q global score – screening (4 weeks before screening), mean±SD, scores | 0.57±0.5 | 1.37±1.01 | t22.3=−2.97 | p=0.008 |
| MADRS, mean±SD, scores | 1.19±1.99 | 3.24±3.85 | t22.8=−1.99 | p=0.06 |
Abbreviations: AN, anorexia nervosa; BMI, body mass index; BN, bulimia nervosa; EDE-Q, Eating Disorder Examination-Questionnaire (Hilbert and Tuschen-Caffier, 2006); HC, healthy control participants; MADRS, Montgomery-Åsberg Depression Rating Scale (Schmidtke et al, 1988); MDD, major depressive disorder; n, number; NA, not applicable; rBN, remitted bulimic participants; SD, standard deviation; SNRI, serotonin and norepinephrine reuptake inhibitors; SSRI, selective serotonin reuptake inhibitors; TCA, tricyclic antidepressants.
Characteristics of the participants. Differences between rBN and HC participants were calculated using two-tailed Welch’s t-tests accounting for unequal variances in R (version 3.3.3) (R Foundation for Statistical Computing, 2017).