Table 2.
Association of orthorexia nervosa symptom total score as measured with the Düsseldorf Orthorexia Scale (DOS) with categorical variables. Results of the univariate analyses of variance
| Predictor | N | M (SD) DOS | Test statistics | Effect size | ||
|---|---|---|---|---|---|---|
| Sexa | t = 2.38 (467c), p = .018 | d = .20 (small) | ||||
| Female | 324 | 16.83 (5.24) | ||||
| Male | 187 | 15.84 (4.06) | ||||
| Highest educationb | F = .15 (3, 505), p = .932 | partial η2 = .001 (none) | ||||
| Secondary school | 46 | 16.30 (4.97) | ||||
| High school | 67 | 16.57 (5.18) | ||||
| Occupational training | 134 | 16.69 (4.96) | ||||
| University | 262 | 16.39 (4.74) | ||||
| Past psychiatric or psychotherapeutic treatmenta | t = 4.88 (508), p < .001 | d = .49 (small) | ||||
| Yes | 135 | 18.19 (4.87) | ||||
| No | 375 | 15.86 (4.61) | ||||
| Current psychiatric or psychotherapeutic treatmenta | t = 3.52 (509), p < .001 | d = .59 (intermediate) | ||||
| Yes | 39 | 19.08 (5.32) | ||||
| No | 472 | 16.26 (4.76) | ||||
| Psychotropic medication during last yeara | t = 4.09 (509), p < .001 | d = .65 (intermediate) | ||||
| Yes | 44 | 19.30 (5.74) | ||||
| No | 467 | 16.21 (4.69) | ||||
| Fear of gaining weight (SEED item 3)b | F = 26.71 (4, 505), p < .001 | partial η2 = .174 (large) | ||||
| Never | 62 | 15.06 (3.96) | ||||
| Seldom | 93 | 14.67 (3.55) | ||||
| Sometimes | 161 | 15.54 (4.26) | ||||
| Often | 122 | 17.11 (4.60) | ||||
| Always | 72 | 21.02 (4.87) | ||||
| PHQ bulimia nervosaa | t = 5.01 (39.99c), p < .001 | d = 1.14 (large) | ||||
| Yes | 38 | 21.38 (6.40) | ||||
| No | 473 | 16.08 (4.50) | ||||
| PHQ somatoform syndromea | t = 2.64 (41.09c), p = .012 | d = .60 (intermediate) | ||||
| Yes | 39 | 19.12 (6.65) | ||||
| No | 472 | 16.25 (4.63) | ||||
| PHQ depressive syndromesb | F = 27.52 (2, 509), p < .001 | partial η2 = .098 (intermediate) | ||||
| Major depressive syndrome | 16 | 24.09 (6.27) | ||||
| Other depressive syndrome | 62 | 17.98 (5.09) | ||||
| None | 433 | 15.97 (4.49) | ||||
| PHQ alcohol syndromea | t = .82 (509), p = .415 | d = .14 (none) | ||||
| Yes | 40 | 17.08 (5.44) | ||||
| No | 471 | 16.42 (4.81) | ||||
M mean, SD standard deviation, SEED short evaluation of eating disorders, PHQ Patient Health Questionnaire
aComparison of means with independent t test
bComparison of means with univariate analysis of variance
cDegrees of freedom corrected due to unequal variances