Table 1. Socio-demographic and clinical variables.
Socio-demographic and clinical variables compared between groups, expressed as mean (standard deviation), and percentage. One-way ANOVAs followed by posthoc analyses, independent t-tests, and Chi-square tests calculated. Anorexia Nervosa restrictive subtype = AN r, Anorexia Nervosa binge purge subtype AN b/p, Bulimia Nervosa = BN; Healthy Controls = HCs; NS = non significant.
| AN r (N = 19) AN b/p (N = 14) | BN (N = 12) | HCs (N = 71) | Test statistic | |
|---|---|---|---|---|
| Age | 28.2 (10) | 23.4(5.7) | 26.4 (7.8) | F (2,112) = 1.5, p = NS |
| Years of education | 16.3(2.8) | 15.9 (2.3) | 17.7 (2.9) | F (2,108) = 3.6, p = .03; AN vs. HCs: p = .07; AN vs. BN: p = NS; BN vs. HCs: p = NS |
| Body Mass Index (Kg/m2) | 15.9 (1.8) | 21.8 (2.3) | 21.9 (2.8) | F (2,105) = 72.3, p < .0001; AN vs. HCs: p < .0001; AN vs. BN: p < .0001; BN vs. HCs: p = NS |
| Length of illness (months) | 58.5 (80.7) | 32.2 (44.0) | N/A | t(44) = 1.1, p = NS |
| Psychiatric medication (yes/no) | 79.4% | 75% | N/A | X2 = .1, p = NS |
| Previous hospital admissions (yes/no) | 66.7% | 54.5% | N/A | X2 = .5, p = NS |
| Psychiatric disorder other than ED (yes/no) | 38.2% | 61.8% | N/A | X2 = 2.9, p = .09 |
| Without a partner (single/divorced vs. in a relationship) | 70.6% | 58.3% | 45.1% | X2(4) = 10, p = .04; AN vs. BN = NS; AN + BN vs. HCs: X2(2) = 7.8, p = .02 |
| EDE-Q Restriction | 3.7 (1.7) | 3.8 (1.6) | .7 (.9) | F (2,113) = 79.9, p < .0001; AN vs. HCs: p < .0001; AN vs. BN: p = NS; BN vs. HCs: p < .0001 |
| EDE-Q Eating Concern | 3.5 (1.2) | 3.8 (1.3) | .2 (.4) | F (2,113) = 239, p < .0001; AN vs. HCs: p < .0001; AN vs. BN: p = NS; BN vs. HCs: p < .0001 |
| EDE-Q Weight Concern | 3.9 (1.5) | 4.7 (1.5) | .8 (.9) | F (2,113) = 107.6, p < .0001; AN vs. HCs: p < .0001; AN vs. BN: p = NS; BN vs. HCs: p < .0001 |
| EDE-Q Shape Concern | 4.4 (1.6) | 4.9 (1.3) | 1.0 (1.0) | F (2,113) = 113.3, p < .0001; AN vs. HCs: p < .0001; AN vs. BN: p = NS; BN vs. HCs: p < .0001 |
| EDE-Q Total | 3.9 (1.2) | 4.3 (1.3) | .7 (.7) | F (2,113) = 161.8, p < .0001; AN vs. HCs: p < .0001; AN vs. BN: p = NS; BN vs. HCs: p < .0001 |
| DASS Stress | 26.7 (10.1) | 22.3 (11.8) | 6.8 (5.9) | F (2,112) = 75.5, p = < .0001; AN vs. HCs: p < .0001; AN vs. BN: p = NS; BN vs. HCs: p = .002 |
| DASS Depression | 23.8 (13.1) | 26.5 (12.1) | 2.4(3.0) | F (2,112) = 98.2, p < .0001; AN vs. HCs: p < .0001; AN vs. BN: p = NS; BN vs. HCs: p < .0001 |
| DASS Anxiety | 15.2 (10.9) | 15 (9.2) | 2.2 (3.2) | F (2,112) = 47.1, p < .0001; AN vs. HCs: p < .0001; AN vs. BN: p = NS; BN vs. HCs: p = .001 |
| Social Support | 10.1 (2.4) | 8.1 (1.7) | 10.9 (2.0) | F (2,114) = 9.3, p < .0001 AN vs. HCs: p = NS AN vs. BN: p = .008 BN vs. HCs: p < .0001 |