Emotion regulation as a transdiagnostic construct across the spectrum of disordered eating in adolescents: A systematic review

Objective: This systematic review aimed to understand the role of emotion regulation (ER) across the spectrum of disordered eating behaviors and attitudes in adolescents. Method: A literature search was conducted using the PubMed, Scopus, and Web of Science databases, and 8381 articles were extracted. After removing duplicates and screening, data from 50 articles involving 31,591 participants from 18 countries were included. Results: Consistent associations between difficulties in ER/maladaptive ER and overeating (but not restrictive) behaviors/attitudes were found among adolescents without an eating disorder diagnosis. In contrast, in adolescents with eating disorders, ER difficulties were associated with restrictive-, compensatory- and overeatingtype eating disorders. More difficulties in ER were found among adolescents with eating disorder diagnoses (i. e., anorexia nervosa, bulimia nervosa, or binge eating disorder) than among their healthy/normal-weight peers. Nonetheless, difficulties in ER abilities and in the implementation of ER strategies were greater in adolescents with anorexia nervosa or bulimia nervosa than in adolescents with binge eating disorder. Finally, concerning the role of adaptive ER, although fewer adaptive ER strategies were consistently found in adolescents with a diagnosis of anorexia nervosa than in healthy controls, the results in community samples were less consistent. Discussion: Overall, ER was associated with disordered eating behaviors/attitudes and eating disorder diagnoses, supporting the transdiagnostic role of ER in the spectrum of eating psychopathology. Fewer consistent findings were found across the weight spectrum, specifically at the higher end (overweight/obesity). These results highlighted the role of different ER abilities and strategies and the relevance of maladaptive (vs. adaptive) ER in understanding disordered eating. The findings also set the context for developing specific ER-based interventions across the spectrum of disordered eating behaviors and attitudes.