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. 2020 Nov 13;12(11):3490. doi: 10.3390/nu12113490

Table 4.

Bivariate analysis of factors associated with the DOS categories.

Variable ON Categories (Based on the DOS) p Chi-Square Test
Absence of ON (N = 210)
Having a Score
<25
At risk of ON (N = 13)
Having a Score
at 25–29
Presence of ON (N = 7)
Having a Score
≥30
Clusters 0.038 8.50
Cluster 1 138 (66.0%) 4 (20.8%) 4 (57.1%)
Cluster 2 48 (23.0%) 6 (46.2%) 1 (14.3%)
Cluster 3 23 (11.0%) 3 (23.1%) 2 (28.6%)
Gender 0.443 1.90
Males 160 (76.2%) 11 (84.6%) 4 (57.1%)
Females 50 (23.8%) 2 (15.4%) 3 (42.9%)
Age 26.66 ± 7.57 23.54 ± 2.33 27.86 ± 14.31 0.724 -
Body Mass Index 24.82 ± 5.35 23.59 ± 4.06 27.68 ± 5.77 0.257 -
Cognitive restraint (TFEQ-R18) 10.22 ± 2.80 12.23 ± 2.97 10.57 ± 1.72 0.042 -
Uncontrolled eating (TFEQ-R18) 9.00 ± 5.83 9.92 ± 3.77 13.57 ± 6.65 0.109 -
Emotional eating (TFEQ-R18) 3.37 ± 2.66 4.31 ± 1.97 4.14 ± 3.13 0.358 -
Drive for thinness (EDI) 3.99 ± 4.57 7.92 ± 5.98 6.57 ± 6.75 0.007 -
Bulimia (EDI) 2.57 ± 4.35 1.92 ± 2.36 6.28 ± 6.97 0.393 -
Body dissatisfaction (EDI) 8.20 ± 7.22 8.46 ± 8.78 10.14 ± 9.79 0.788 -
Ineffectiveness (EDI) 5.66 ± 5.06 3.84 ± 2.19 10.57 ± 8.06 0.017 -
Perfectionism (EDI) 4.96 ± 4.07 6.61 ± 2.75 5.43 ± 6.40 0.134 -
Interpersonal distrust (EDI) 4.14 ± 4.29 3.77 ± 3.54 6.86 ± 3.67 0.234 -
Interoceptive awareness (EDI) 4.27 ± 5.01 5.69 ± 4.46 9.00 ± 11.16 0.188 -
Maturity fear (EDI) 6.24 ± 5.41 8.08 ± 5.39 5.71 ± 7.50 0.484 -
Total physical activity (IPAQ) 2280.91 ± 2890.06 2843.24 ± 2465.07 3264.86 ± 3355.09 0.548 -
Hoarding (OCI-R) 3.06 ± 2.74 5.07 ± 2.69 3.71 ± 2.75 0.033 -
Ordering (OCI-R) 3.36 ± 2.88 5.23 ± 2.52 3.57 ± 2.57 0.075 -
Mental neutralizing (OCI-R) 1.40 ± 2.32 2.92 ± 3.33 2.43 ± 2.07 0.05 -
Washing (OCI-R) 2.18 ± 2.38 3.38 ± 2.87 3.00 ± 2.24 0.161 -
Obsessing (OCI-R) 1.99 ± 2.65 3.23 ± 2.92 3.57 ± 2.99 0.093 -
Checking (OCI-R) 3.70 ± 3.10 4.69 ± 3.25 4.86 ± 3.29 0.357 -
Total OCI-R 15.70 ± 12.44 24.54 ± 13.80 21.14 ± 11.00 0.029 -

ON: Orthorexia Nervosa; DOS: Düsseldorf Orthorexia Scale; TFEQ-R18: Three-Factor Eating Questionnaire; EDI: Eating Disorder Inventory; IPAQ: International Physical Activity Questionnaire; OCI-R: Obsessive Compulsive Inventory—Revised. Post hoc analysis: cognitive restraint (absence of ON vs. at risk of ON p = 0.037); Drive for thinness (absence of ON vs. at risk of ON p = 0.012); Ineffectiveness (absence of ON vs. presence of ON p = 0.037; at risk of ON vs. presence of ON p = 0.015); Hoarding (absence of ON vs. at risk of ON p = 0.031); Total OCI-R (absence of ON vs. at risk of ON p = 0.042). Numbers in bold indicate significant p-values.