Table 3.
Variable | Pretreatment | Posttreatment | Follow-up at 6 months | Overall effecta | |||||||||
|
Mean | SD | MDb | SD | P | MDb | SD | P | F | df | P | Effect sizec | |
Eating disorder psycho-pathologyd | 3.4 | 1.0 | 1.4 | 1.2 | <.001 | 1.2 | 1.4 | <.001 | 54.6 | 68 | <.001 | 1.14 | |
|
Restraint | 2.5 | 1.6 | 0.9 | 1.8 | <.001 | 0.7 | 1.5 | .001 | 11.7 | 70 | <.001 | 0.47 |
|
Eating concern | 3.0 | 1.3 | 1.6 | 1.4 | <.001 | 1.2 | 1.5 | <.001 | 55.6 | 70 | <.001 | 0.95 |
|
Shape concern | 4.3 | 1.3 | 1.6 | 1.5 | <.001 | 1.5 | 1.8 | <.001 | 39.6 | 67 | <.001 | 1.17 |
|
Weight concern | 4.0 | 1.2 | 1.4 | 1.5 | <.001 | 1.3 | 1.6 | <.001 | 41.6 | 68 | <.001 | 1.11 |
Body dissatisfaction e | 60.5 | 16.7 | 15.3 | 13.6 | <.001 | 14.5 | 17.1 | <.001 | 40.8 | 67 | <.001 | 0.86 | |
BMI f |
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< 18.5 | 16.9 | 1.3 | -0.6 | 0.9 | .29 | -0.3 | 0.6 | 1.00 | 3.8 | 9 | .05 | 0.02 |
|
18.5-25 | 21.1 | 1.7 | 0.1 | 1.1 | .99 | 0.7 | 1.8 | .34 | 1.6 | 18 | .22 | 0.39 |
|
25-30 | 27.8 | 1.5 | 0.4 | 1.0 | .66 | 0.7 | 1.9 | .67 | 0.9 | 14 | .48 | 0.46 |
|
> 30 | 36.4 | 7.2 | 1.1 | 1.9 | .01 | 1.5 | 2.1 | .01 | 4.7 | 26 | .01 | 0.20 |
Quality of life g | 59.4 | 16.6 | -9.6 | 17.8 | <.001 | -6.8 | 20.5 | .08 | 13.3 | 71 | <.001 | 0.32 | |
Mental health h | 38.5 | 19.8 | 12.8 | 16.1 | <.001 | 11.0 | 17.9 | <.001 | 21.8 | 70 | <.001 | 0.56 | |
Physical health i | 2.1 | 0.5 | 0.3 | 0.3 | <.001 | 0.2 | 0.3 | <.001 | 36.8 | 67 | <.001 | 0.39 |
aTreatment outcomes were measured with Repeated Measures and Mixed Model analysis.
bMD = Mean Difference; positive MD scores indicate a decrease in baseline scores and negative MD scores indicate an increase in baseline scores.
cEffect sizes were measured with Cohen’s d using MD at 6-months follow-up and baseline SD.
dEating Disorder Examination – Questionnaire (EDE-Q).
eBody Attitude Test (BAT).
fBMI indexes below 18.5 indicate underweight, 18.5 to 25 healthy weight, 25 to 30 overweight, and over 30 obesity.
gEuroQol-5D visual analogue scale (EQ-5D VAS).
h21-item Depression Anxiety Stress Scale (DASS-21).
iTotal score consisting of Maudsley Addiction Profile Health Symptom Scale (MAP-HSS) and 15 additional eating disorder-specific physical complaints.