Table 1.
Characteristics of the sample at baseline.
| IPT (N = 65) | CBT-E (N = 65) | All Patients (N = 130) | ||||
|---|---|---|---|---|---|---|
| Mean | (SD) | Mean | (SD) | Mean | (SD) | |
| Age (years) | 26.8 | (8.8) | 24.9 | (6.4) | 25.9 | (7.7) |
| N | (%) | N | (%) | N | (%) | |
| Female | 63 | (96.9) | 64 | (98.5) | 127 | (97.7) |
| Ethnicity: | ||||||
| White | 60 | (92.3) | 64 | (98.5) | 124 | (95.4) |
| Black British | 1 | (1.5) | 0 | (0.0) | 1 | (0.8) |
| Asian Chinese | 0 | (0.0) | 1 | (1.5) | 1 | (0.8) |
| Asian British | 1 | (1.5) | 0 | (0.0) | 1 | (0.8) |
| Mixed | 3 | (4.6) | 0 | (0.0) | 3 | (2.3) |
| Marital Status: | ||||||
| Single, never married | 52 | (80.0) | 58 | (89.2) | 110 | (84.6) |
| Married or living as such | 12 | (18.5) | 6 | (9.2) | 18 | (13.9) |
| Separated or divorced | 1 | (1.5) | 1 | (1.5) | 2 | (1.5) |
| Occupational Social Class: | ||||||
| Higher | 18 | (27.7) | 8 | (12.3) | 26 | (20.0) |
| Intermediate | 5 | (7.7) | 9 | (13.9) | 14 | (10.8) |
| Lower | 10 | (15.4) | 11 | (16.9) | 21 | (16.2) |
| Unclassifiable | 2 | (3.1) | 2 | (3.1) | 4 | (3.1) |
| Student | 30 | (46.2) | 35 | (53.9) | 65 | (50.0) |
| DSM-IV Eating Disorder Status: | ||||||
| Bulimia nervosa | 28 | (43.1) | 25 | (38.5) | 53 | (40.8) |
| Binge eating disorder | 4 | (6.2) | 4 | (6.2) | 8 | (6.2) |
| Other eating disorder | 33 | (50.8) | 36 | (55.4) | 69 | (53.1) |
| History of anorexia nervosa | 15 | (23.8) | 21 | (32.8) | 36 | (28.4) |
| Mean | (SD) | Mean | (SD) | Mean | (SD) | |
| Duration of eating disorder (years) | 11.4 | (9.6) | 8.4 | (7.3) | 9.9 | (8.6) |
| Lowest adult BMI (kg/m2) | 19.3 | (2.9) | 18.9 | (2.8) | 19.1 | (2.9) |
| Highest adult BMI (kg/m2) | 26.6 | (5.6) | 26.2 | (5.4) | 26.4 | (5.5) |
| N | (%) | N | (%) | N | (%) | |
| Current Comorbid Diagnoses (SCID): | ||||||
| Major depressive episode | 6 | (9.2) | 9 | (13.9) | 15 | (11.5) |
| Any anxiety disorder | 15 | (23.1) | 14 | (21.5) | 29 | (22.3) |
| Substance abuse | 7 | (10.8) | 2 | (3.1) | 9 | (6.9) |
| Any Axis 1 disorder | 25 | (38.5) | 22 | (34.4) | 47 | (36.4) |
| Need for psychotropic medication | 27 | (41.5) | 30 | (46.2) | 57 | (43.9) |
BMI – Body mass index; SCID – Structured Clinical Interview for DSM-IV Axis I Disorders (First et al., 1997).
Missing values – There were 2 missing values for history of anorexia nervosa (IPT: 1 missing; CBT: 1 missing) and 1 missing value for any axis I disorder (IPT: 0 missing; CBT: 1 missing). The denominator for percentages is the number of non-missing values.