Table 4.
Results of the mediation models
| Muscle dysmorphia severity | Eating disorder-related symptoms | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Model 1 (path a) | Model 2 (path c′) | Model 3 (path c) | |||||||
| B | SE | 95% CI | B | SE | 95% CI | B | SE | 95% CI | |
| BSMAS total score | 0.136* | 0.052 | [0.033; 0.239] | 0.130 | 0.088 | [− 0.042; 0.301] | 0.213* | 0.093 | [0.031; 0.395] |
| MDDI total score | – | – | – | 0.611*** | 0.063 | [0.488; 0.733] | – | – | – |
| Age | − 0.025 | 0.099 | [− 0.219; 0.169] | − 0.056 | 0.164 | [− 0.379; 0.266] | − 0.072 | 0.175 | [− 0.415; 0.271] |
| Gender | − 4.152*** | 0.612 | [− 5.354; − 2.950] | 3.988*** | 1.050 | [1.926; 6.049] | 1.453 | 1.083 | [− 0.674; 3.579] |
| Student | 1.620 | 1.100 | [− 0.539; 3.778] | − 0.664 | 1.831 | [− 4.258; 2.930] | 0.325 | 1.946 | [− 3.496; 4.145] |
| Employed | 0.852 | 1.162 | [− 1.429; 3.132] | − 0.918 | 1.931 | [− 4.710; 2.874] | − 0.398 | 2.055 | [− 4.434; 3.637] |
| Educational level > 13 years | 1.102 | 0.604 | [− 0.084; 2.288] | 0.051 | 1.006 | [− 1.924; 2.027] | 0.724 | 1.069 | [− 1.374; 2.823] |
| Marital status | − 0.528 | 0.851 | [− 2.198; 1.143] | 0.385 | 1.414 | [− 2.391; 3.162] | 0.063 | 1.505 | [− 2.892; 3.019] |
| Self-reported BMI | − 0.010 | 0.084 | [− 0.176; 0.155] | 0.076 | 0.140 | [− 0.199; 0.352] | 0.070 | 0.149 | [− 0.223; 0.363] |
| Tobacco use | 0.387 | 0.539 | [− 0.671; 1.444] | 0.187 | 0.896 | [− 1.571; 1.945] | 0.423 | 0.953 | [− 1.448; 2.294] |
| CAGE ≥ 2 | 2.515** | 0.800 | [0.945; 4.085] | 1.495 | 1.339 | [− 1.133; 4.123] | 3.030* | 1.415 | [0.252; 5.809] |
| Substances use | 2.226** | 0.683 | [0.885; 3.568] | 0.454 | 1.144 | [− 1.792; 2.700] | 1.813 | 1.209 | [− 0.561; 4.187] |
| BSI cut-off | 5.024*** | 0.664 | [3.720; 6.328] | 4.122*** | 1.148 | [1.869; 6.375] | 7.190*** | 1.175 | [4.882; 9.497] |
| Compilation modality | − 0.209 | 0.619 | [− 1.425; 1.006] | 1.456 | 1.029 | [− 0.565; 3.476] | 1.328 | 1.096 | [− 0.823; 3.479] |
| R2 = 0.18; F13; 707 = 12.29; p < 0.001 | R2 = 0.21; F14; 706 = 13.61; p < 0.001 | R2 = 0.11; F13; 707 = 6.45; p < 0.001 | |||||||
Coding systems: gender: 1 = male 2 = female. Student: 0 = no 1 = yes. Employed: 0 = no 1 = yes. Educational level > 13 years: 0 = no 1 = yes. Marital status: 1 = unmarried 2 = married or living with partner. Tobacco use = 0 = no 1 = yes. CAGE ≥ 2: 0 = no 1 = yes. Illicit drug use: 0 = no 1 = yes. BSI cut-off: 0 = no 1 = yes. Compilation modality: 1 = paper/pencil questionnaires 2 = online questionnaires
Bold values represent p < 0.05
Original, BSMAS Bergen Social Media Addiction Scale, MDDI Muscle Dysmorphic Disorder Inventory, BMI body mass index, CAGE Cut-Annoyed-Guilty-Eye (CAGE) questionnaire, BSI Brief Symptom Inventory
*p < 0.05; **p < 0.01; ***p < 0.001