Table 1.
Variable Descriptive Data.
| Motivational Interviewing + Internet | Nutrition Psychoeducation + Internet | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||||||||
| Baseline | 12-month minus Baseline | Baseline | 12-month minus Baseline | Effect (group difference) | ||||||||||||
|
| ||||||||||||||||
| N | Mean | Std Dev | N* | Mean | Std Dev | N | Mean | Std Dev | N* | Mean | Std Dev | Mean | Lower 95% CI |
Upper 95% CI |
Interaction: Cohen’s d |
|
| Body Mass Index | 30 | 34.65 | 7.06 | 21 | 0.474 | 2.025 | 29 | 35.07 | 7.52 | 23 | −0.521 | 1.544 | 0.996 | −0.094 | 2.085 | 0.56 |
| Weight | 30 | 216.04 | 54.27 | 21 | 3.314 | 12.851 | 29 | 219.36 | 53.88 | 23 | −3.052 | 9.240 | 6.367 | −0.399 | 13.132 | 0.57 |
| Systolic blood pressure | 30 | 120.30 | 11.13 | 21 | 1.500 | 12.915 | 29 | 127.66 | 13.65 | 23 | −3.348 | 10.271 | 4.848 | −2.221 | 11.917 | 0.42 |
| Diastolic blood pressure | 30 | 76.78 | 9.56 | 21 | −0.643 | 8.281 | 29 | 77.52 | 10.76 | 23 | −0.304 | 8.628 | −0.339 | −5.495 | 4.818 | 0.04 |
| Heart rate | 29 | 73.53 | 11.05 | 20 | 1.375 | 9.045 | 29 | 75.40 | 12.76 | 23 | −1.304 | 10.048 | 2.679 | −3.246 | 8.605 | 0.28 |
| BDI | 30 | 8.03 | 7.15 | 23 | −1.130 | 4.693 | 29 | 7.90 | 5.67 | 26 | −1.192 | 5.706 | 0.062 | −2.965 | 3.089 | 0.01 |
| AMQ | 30 | 6.61 | 0.79 | 23 | −0.348 | 1.435 | 29 | 6.62 | 0.80 | 26 | −0.846 | 1.703 | 0.498 | −0.413 | 1.410 | 0.31 |
| Total EDE-Q (avg) | 30 | 2.39 | 0.99 | 23 | −0.343 | 0.836 | 29 | 2.12 | 1.06 | 26 | −0.550 | 0.727 | 0.207 | −0.242 | 0.656 | 0.27 |
Note. BDI=Beck Depression Inventory. AMQ=Autonomous Motivation Questionnaire. EDE-Q=Eating Disorder Examination-Questionnaire.
*
Participant numbers at 12-month follow-up (15 months after treatment start) differ as some participants completed online self-report questionnaires but did not attend in-person assessments for measurements.