Demographic and clinical characteristics of study participants
| Group; mean ± SD | ||||
|---|---|---|---|---|
| Characteristic | Recovered* n = 31 | Control n = 31 | t | p value |
| Age, yr | 22.27 ± 3.08 | 21.73 ± 2.99 | −0.70 | 0.49 |
| BMI† | 20.69 ± 1.62 | 21.37 ± 2.10 | 1.42 | 0.16 |
| BMI SDS | −0.54 ± 0.55 | −0.29 ± 0.64 | 1.60 | 0.11 |
| IQ‡ | 108.52 ± 9.74 | 110.67 ± 8.80 | 0.91 | 0.37 |
| Age at onset, yr | 14.38 ± 1.93 | NA | — | — |
| Duration of recovery, mo | 53.24 ± 33.27 | NA | — | — |
| Illness duration, mo§ | 44.63 ± 31.93 | NA | — | — |
| EDI–2 total score | 162.05 ± 44.22 | 131.92 ± 25.89 | −3.26 | 0.002 |
| SCL–90–R, depression | 6.93 ± 7.41 | 5.17 ± 8.15 | −0.88 | 0.38 |
| SCL–90–R, anxiety | 3.97 ± 4.50 | 2.9 ± 6.32 | −0.75 | 0.45 |
BMI = body mass index; BMI SDS = body mass index standard deviation score; EDI-2 = Eating Disorders Inventory-2; NA = not applicable; SCL-90-R = Symptom Check-List-90R; SD = standard deviation.
↵* One participant in the sample had been recovered for 9 mo, all other participants were recovered for at least 2 mo.
↵† BMI is displayed but statistical comparisons are based on BMI-SDS values to ensure comparability across age.
↵‡ IQ was assessed with a short version of the German adaption of the Wechsler Adult Intelligence Scale (35) or a short version of the German adaption of the Wechsler Intelligence Scale for Children (36) for participants aged 15 yr or younger.
↵§ Reported illness duration comprises the total time period from onset of the first episode until recovery following the last episode.