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Communication Dans Un Congrès Année : 2022

Eating disorders risk factors and physical activity in an adolescent community sample. A machine learning analysis

Résumé

Introduction: Eating Disorders (ED), such as anorexia, bulimia and binge eating, affect about 10% of young people. Main symptoms concern eating (restriction, excessive food intake) and weight control behaviors (laxatives, vomiting). Psychological comorbidities (depression, executive function disorders, etc.) and problematic behaviors toward physical activity (PA) are commonly associated with ED (Treasure, 2020). To our knowledge, no study specifically investigated the link between ED risk level, PA and psychological factors in a community sample of adolescents. The aim of this study is to assess ED risk level, PA (type, frequency and motivations for engaging in PA) and psychological factors, and to examine their relationship based on the Jacobi risk factors model (Jacobi et al., 2004). We suppose that a high-risk of ED will be associated with practice of high caloric cost PA, motivations oriented to weight and shape control and psychological disturbances. Method: An online survey destined to students has been sent to direction staff of several middle school and college in the north-west of France. This survey combined questionnaires assessing ED risk, PA, depression, anxiety, body dissatisfaction, self-esteem, body image, PA dependence, interoception and perfectionism. Machine learning analysis will be performed in order to constitute groups with a clustering method, to extract risk profile(s) with a bootstrap analysis and to predict ED risk with a prediction method based on a decision tree based model. Expected results: 1044 complete records have already been collected, and the survey will be closed in May 2022. Records will be analyzed in order to bring out risk profile(s) and a better understanding about risk factors. References Jacobi, C., Hayward, C., de Zwaan, M., Kraemer, H. C., & Agras, W. S. (2004). Coming to terms with risk factors for eating disorders : Application of risk terminology and suggestions for a general taxonomy. Psychological Bulletin, 130(1), 19‑65. https://doi.org/10.1037/0033-2909.130.1.19 Treasure, J. (2020). Eating disorders. Medicine, 48(11), 727‑731. https://doi.org/10.1016/j.mpmed.2020.08.001
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hal-04355554 , version 1 (20-12-2023)

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Marc Toutain, Pascale Leconte, Jeremy Lefort-Besnard, Antoine Gauthier. Eating disorders risk factors and physical activity in an adolescent community sample. A machine learning analysis. Journées de l'Ecole Doctorale Normande de Biologie Intégrative, Santé, Environnement (JED nBISE), Jun 2022, Caen, France. ⟨10.13140/RG.2.2.29539.84006/1⟩. ⟨hal-04355554⟩
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