Table 2.
Main clinical features at baseline, post-treatment and at 60-week post-treatment follow-up.
| Baseline |
Post-treatment |
60-week Follow-up |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IPT (N = 65) | CBT (N = 65) | IPT (N = 60) | CBT (N = 58) | IPT (N = 49) | CBT (N = 49) | |||||||
| Mean | (SD) | Mean | (SD) | Mean | (SD) | Mean | (SD) | Mean | (SD) | Mean | (SD) | |
| Body mass index (kg/m2) | 22.8 | (4.2) | 22.9 | (4.4) | 23.6 | (4.5) | 23.5 | (4.1) | 24.8 | (5.1) | 24.1 | (4.8) |
| Eating disorder psychopathology (EDE) | ||||||||||||
| Global score | 3.52 | (1.05) | 3.59 | (1.01) | 2.37 | (1.25) | 1.57 | (1.25) | 1.83 | (1.28) | 1.51 | (1.20) |
| Dietary restraint | 3.70 | (1.32) | 3.71 | (1.09) | 2.46 | (1.61) | 1.08 | (1.35) | 1.71 | (1.53) | 1.32 | (1.53) |
| Eating concern | 2.86 | (1.11) | 2.81 | (1.27) | 1.83 | (1.40) | 1.12 | (1.21) | 1.24 | (1.23) | 0.97 | (1.09) |
| Shape concern | 4.03 | (1.32) | 4.08 | (1.38) | 2.53 | (1.34) | 1.99 | (1.43) | 2.30 | (1.57) | 1.98 | (1.48) |
| Weight concern | 3.47 | (1.51) | 3.77 | (1.31) | 2.67 | (1.65) | 2.09 | (1.67) | 2.08 | (1.60) | 1.78 | (1.41) |
| Other features | ||||||||||||
| Secondary impairment (CIA) | 30.0 | (8.3) | 30.5 | (8.6) | 19.6 | (12.4) | 13.9 | (10.4) | 12.6 | (10.8) | 12.4 | (12.1) |
| Depressive features (BDI) | 22.8 | (10.9) | 21.2 | (10.8) | 14.0 | (12.3) | 11.8 | (11.0) | 11.8 | (12.6) | 12.7 | (11.8) |
| N | (%) | N | (%) | N | (%) | N | (%) | N | (%) | N | (%) | |
| EDE global score < 1 SD above the community mean (<1.74) | 4 | (6.2) | 2 | (3.1) | 20 | (33.3) | 38 | (65.5) | 24 | (49.0) | 34 | (69.4) |
| Eating disorder behaviour (EDE) | ||||||||||||
| Objective bulimic episodes ≥1 | 51 | (78.5) | 54 | (83.1) | 38 | (63.3) | 25 | (43.1) | 20 | (40.8) | 19 | (38.8) |
| Self-induced vomiting ≥1 | 42 | (64.6) | 41 | (63.1) | 31 | (51.7) | 22 | (37.9) | 19 | (38.8) | 19 | (38.8) |
| Laxative-taking ≥1 | 17 | (26.2) | 7 | (10.8) | 12 | (20.0) | 1 | (1.7) | 5 | (10.2) | 1 | (2.0) |
| Absence of all of the above | 8 | (12.3) | 6 | (9.2) | 13 | (21.7) | 26 | (44.8) | 23 | (46.9) | 22 | (44.9) |
| Cessation of binge eating and purging if present at baseline (N, %) | – | – | – | – | 7/52 | (13.5) | 22/53 | (41.5) | 16/41 | (39.0) | 18/45 | (40.0) |
| Median | (IQR) | Median | (IQR) | Median | (IQR) | Median | (IQR) | Median | (IQR) | Median | (IQR) | |
| Objective bulimic episodes (N) | 14 | (3, 28) | 11 | (4, 28) | 7 | (0, 18) | 0 | (0, 5) | 0 | (0, 4) | 0 | (0, 2) |
| Self-induced vomiting (N) | 14 | (0, 40) | 5 | (0, 25) | 1.5 | (0, 19) | 0 | (0, 5) | 0 | (0, 7) | 0 | (0, 3) |
| Laxative-taking (N) | 0 | (0, 1) | 0 | (0, 0) | 0 | (0, 0) | 0 | (0, 0) | 0 | (0, 0) | 0 | (0, 0) |
EDE – Eating Disorder Examination (Fairburn et al., 2008); CIA – Clinical Impairment Assessment (Bohn & Fairburn, 2008; Bohn et al., 2008); BDI – Beck Depression Inventory (Beck et al., 1961); BMI – Body mass index.
Missing values – Immediately post-treatment there were a further 4 missing values for BMI, CIA and BDI (IPT: 1; CBT: 3). At 60-week post-treatment, there were a further 6 missing values for BMI (IPT: 4; CBT: 2), 14 missing for CIA (IPT: 7; CBT: 7) and 10 missing for BDI (IPT: 4; CBT: 6).