Disordered Eating Attitudes, Anxiety, Self-Esteem and Perfectionism in Young Athletes and Non-Athletes.

In the comparison between the footballers and control groups, the statistically significant differences were found in the following variables: in the BMI (Mann–Whitney = 512.5, p < 0.05), being higher in the footballer than in control condition with a moderate to high effect size, Cohen’s d = 0.65 (r = 0.31); in Rosenberg Self-Esteem Scale (Global score) (Mann–Whitney = 492, p < 0.00), being higher in the footballer than in the control condition with a very high effect size, Cohen’s d = 2.3 (r = 0.75) and marginally significant in the Positive subscale (Mann-Whitney = 607, p = 0.06), being higher in the footballer than in control condition and there was a small to moderate to high effect size, Cohen’s d = 0.48 (r = 0.23); and in the Subscale 1 of the CAP (Mann–Whitney = 547, p < 0.05), being higher in the footballer than in the control condition with a small to moderate to high effect size, Cohen’s d = 0.52 (r = 0.25) ( Table 5 ).

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