Table 3.
Boys | No sport (n = 40) |
Lower tertile (n = 56) |
Intermediate tertile (n = 100) |
Upper tertile (n = 94) |
F(1,290)a | η2 | ||||
---|---|---|---|---|---|---|---|---|---|---|
M | SD | M | SD | M | SD | M | SD | |||
Age | 17.25 | 0.12 | 16.95 | 0.90 | 17.03 | 0.09 | 16.85 | 0.08 | 2.83* | .03 |
BMI | 20.21 | 0.45 | 21.01 | 0.31 | 21.90† | 0.31 | 21.71† | 0.29 | 3.59** | .04 |
EDE dietary restraint | 0.71 | 0.13 | 0.47 | 0.09 | 0.52 | 0.09 | 0.55 | 0.08 | 0.52 | .00 |
EDE eating concern | 0.62 | 0.11 | 0.44 | 0.07 | 0.35 | 0.07 | 0.39 | 0.07 | 0.21 | .00 |
EDE weight concern | 1.20 | 0.15 | 0.82 | 0.10 | 0.61‡ | 0.10 | 0.74 | 0.09 | 1.43* | .01 |
EDE shape concern | 1.58 | 0.17 | 1.14 | 0.11 | 0.79‡ | 0.12 | 0.89‡ | 0.11 | 1.80** | .02 |
EDE total score | 1.03 | 0.11 | 0.72 | 0.08 | 0.57‡ | 0.08 | 0.64† | 0.07 | 1.04** | .01 |
BUT weight phobia | 1.08 | 0.13 | 0.95 | 0.08 | 0.86 | 0.08 | 0.86 | 0.08 | 0.20 | .00 |
BUT body image concern | 1.18 | 0.14 | 0.96 | 0.09 | 0.75 | 0.09 | 0.72† | 0.90 | 1.19* | .01 |
BUT avoidance | 0.23 | 0.05 | 0.20 | 0.03 | 0.13 | 0.03 | 0.13 | 0.03 | 0.65 | .01 |
BUT compulsive self-monitoring | 0.83 | 0.12 | 0.77 | 0.08 | 0.75 | 0.08 | 0.85 | 0.07 | 0.34 | .00 |
BUT depersonalisation | 0.43 | 0.26 | 0.27 | 0.17 | 0.52 | 0.17 | 0.29 | 0.16 | 0.25 | .00 |
BUT global severity index | 0.70 | 0.67 | 0.68 | 0.62 | 0.58 | 0.50 | 0.62 | 0.55 | 0.57 | .01 |
MDDI drive for size | 11.60 | 5.77 | 11.19 | 4.99 | 10.73 | 4.30 | 10.87 | 4.60 | 0.37 | .00 |
MDDI appearance intolerance | 6.92 | 3.67 | 6.76 | 3.45 | 5.65‡§ | 2.24 | 5.80† | 2.86 | 3.14*** | .03 |
MDDI functional impairment | 4.95 | 2.02 | 6.10 | 2.77 | 5.91 | 2.83 | 8.08 ‡‡§§$ | 4.53 | 10.89*** | .10 |
MDDI total score | 23.47 | 9.38 | 24.07 | 7.92 | 22.29 | 6.73 | 24.76 | 8.64 | 1.62 | .02 |
M mean, SD standard deviation, F F test, η2 effect size for the ANOVA model, BMI body mass index, EDE Eating Disorders Examination Questionnaire, BUT body uneasiness test, MDDI muscle dysmorphia disorder inventory
aN = 285 for analyses involving BMI
*: p < 0.05; **: p < 0.01; ***: p < 0.001
Post-hoc difference from the "No sport" group: †, p < 0.05; ‡, p < 0.01; ‡‡, p < 0.001
Post-hoc difference from the "Lower tertile" group: §, p < 0.05, §§, p < 0.01
Post-hoc difference from the "Intermediate tertile" group: $, p < 0.001