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The personality traits investigated in the selected studies were organized according to the personality trait domains presented in the Diagnostic and Statistical Manual of Mental Disorders (fifth ed.). Effect sizes of the mean differences were calculated for each domain. We performed meta\u2010regressions to assess the moderating effect of ED subtype and age on the combined effect sizes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Twenty\u2010six studies met our inclusion criteria, containing a total of 63 effect sizes. Adolescents with EDs differed from the non\u2010ED group according to traits related to negative affectivity (<jats:italic>g<\/jats:italic> = 0.78), detachment (<jats:italic>g<\/jats:italic> = 0.69), and conscientiousness (<jats:italic>g<\/jats:italic> = \u22120.53). The presence of an anorexia nervosa diagnosis moderated the relationship between an ED and personality traits; this diagnosis was more strongly associated with conscientious traits compared to other EDs.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p>Our findings provide evidence that personality traits are related to EDs in adolescents. 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