Table 1.
Demographic and Clinical Characteristics at Each Assessment Point
| Characteristic | Baseline | FU1 | FU2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
||||||||||
| BN (n=33) | HC (n=28) | Analysis | BN (n=26) | HC (n=21) | Analysis | BN (n=16) | HC (n=12) | Analysis | ||||
|
|
|
|
|
|
|
|
|
|
||||
| Mean(SD) | Mean(SD) | t(df) | p | Mean(SD) | Mean(SD) | t(df) | p | Mean(SD) | Mean(SD) | t(df) | p | |
| Age | 16.5(1.5) | 16.2(2.1) | −0.73(49) | .47 | 18.1(1.5) | 17.3(2.1) | −1.38(35) | .18 | 19.3(1.5) | 18.8(2.3) | −0.65(18) | .52 |
| BMI (kg/m) | 22.1(2.8) | 21.4(3.5) | −0.86(53) | .39 | 23.2(2.8) | 22.6(3.5) | −0.62(37) | .54 | 23.8(2.7) | 23.9(4.9) | 0.11(16) | .92 |
| WAIS IQ score (Full) | 105.5(16.1) | 104.9(11.4) | 0.16(47) | .87 | ||||||||
| Illness duration (months) | 26.0(19.9) | |||||||||||
| EDE ratings | ||||||||||||
| OBEs | 13.8(17.8) | 7.8(12.1) | 6.7(19.7) | |||||||||
| SBEs | 18.3(24.3) | 3.2(4.0) | 3.6(5.8) | |||||||||
| Vomiting episodes | 32.9(28.7) | 9.4(14.5) | 8.3(19.4) | |||||||||
| LOCs | 25.2(20.1) | 11.0(12.3) | 10.3(24.7) | |||||||||
| Comorbid MDD (%) | 42.4 | 15.4 | 6.3 | |||||||||
| Comorbid Anxiety (%) | 21.2 | 23.1 | 6.3 | |||||||||
| Medication (%) | 27.3 | 46.2 | 31.23 | |||||||||
| Prior AN (%) | 15.2 | |||||||||||
| Treatment (%)a | ||||||||||||
| Inpatient | 39.4 | |||||||||||
| Outpatient | 27.2 | |||||||||||
Note: AN = anorexia nervosa; BMI = body mass index; BN = bulimia nervosa; EDE = Eating Disorder Examination; FU = follow-up; HC = healthy controls; LOC = loss-of-control eating episodes of any size; MDD = major depressive episode; OBE = objective binge-eating episode; SBE = subjective binge-eating episode; WAIS = Weschler Adult Intelligence Scale.
a
Treatment-seeking participants received inpatient or outpatient treatment in the Eating Disorders Clinic at the New York State Psychiatric Institute only following their baseline assessment/scan.