Table 4.
Hierarchical regression model for EDE-Q subscales explained by BIDQ, GASP components, and mental health indicators.
| Outcome variable | Predictor | β (SE) | 95% CI | ΔF | ΔR2 |
|---|---|---|---|---|---|
| ER | |||||
| Step 1 | BIDQ | 0.72 (0.05) | 0.61–0.84 | 157.890 | 0.091 |
| Step 2 | Guilt-NBE | −0.09 (0.02) | −0.14–(−0.04) | 24.999 | 0.025 |
| Step 3 | Anxiety | 0.04 (0.01) | −0.01–0.03 | 38.653 | 0.069 |
| SWO | |||||
| Step 1 | BIDQ | 1.13 (0.06) | 1.01–1.25 | 325.311 | 0.171 |
| Step 2 | Depression | 0.05 (0.00) | 0.03–0.07 | 49.384 | 0.024 |
| Anxiety | 0.03 (0.01) | 0.00–0.05 | |||
| BD | |||||
| Step 1 | BIDQ | 1.29 (0.06) | 1.15–1.42 | 354.562 | 0.184 |
| Step 2 | Depression | 0.04 (0.01) | 0.01–0.06 | 30.681 | 0.025 |
| Distress | 0.03 (0.00) | 0.01–0.05 | |||
| Bingeing | |||||
| Step 1 | BIDQ | 0.79 (0.04) | 0.70–0.88 | 282.938 | 0.152 |
| Step 2 | Guilt-NBE | −0.12 (0.02) | −0.15–(−0.08) | 33.536 | 0.070 |
| Step 3 | Anxiety | 0.06 (0.00) | 0.04–0.07 | 21.981 | 0.011 |
| Purging | |||||
| Step 1 | BIDQ | 0.45 (0.03) | 0.38–0.51 | 169.232 | 0.097 |
| Guilt-NBE | −0.13 (0.02) | −0.17–(−0.08) | |||
| Step 2 | Guilt-Repair | −0.01 (0.02) | −0.05–0.04 | 36.472 | 0.059 |
| Shame-NSE | −0.03 (0.02) | −0.07–0.02 | |||
| Step 3 | Depression | 0.01 (0.00) | 0.01–0.03 | 47.080 | 0.071 |
| Anxiety | 0.06 (0.00) | 0.04–0.07 |
Unstandardised β coefficients (SE) and 95% CI for independent variables are presented as covariate-adjusted, controlling for gender, location, and BMI. In the final model, all independent variables included were statistically significant. BD, body dissatisfaction; BIDQ, body image disturbance questionnaire; EDE-Q, eating disorder examination questionnaire; ER, eating restraint; GASP, guilt and shame proneness scale; Guilt-NBE, guilt-negative behavior evaluation; Shame-NSE, shame-negative self-evaluation; SWO, shape and weight over-evaluation.