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Eating Disorder Symptomatology in Adolescent Boys and Girls: Identifying Distinct Developmental Trajectory Classes

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Abstract

Eating disorder symptomatology is highly prevalent in adolescence and is regarded one of the most important precursors of clinical eating disorders. The present longitudinal study examined the development of eating disorder symptomatology in adolescents over two years. At Time 1,528 high school students filled out self-report questionnaires (50.5% female; Mage = 15 years). Multivariate latent growth curve modeling and latent class growth analyses were performed to model latent trajectories and to identify latent trajectory classes. Stable trajectories of drive for thinness and body dissatisfaction were found, whereas bulimia and BMI increased over time. Important gender differences pointed to girls experiencing more eating disorder symptoms at each time point. Additionally, more diverse trajectory classes were found in girls than in boys. Finally, classes with the most eating disorder symptoms also experienced the most problems in identity development, internalizing symptoms, and the least effortful control. The present study underscores the importance of identifying vulnerable adolescents that experience greater eating disorder symptomatology, as they also seem to experience the worst psychosocial development.

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Notes

  1. More information can be obtained from the first author.

  2. Details about all specific models that were tested in this study (which parameters were included and/or constrained), can be requested from the first author.

  3. When conducting the LGC model with BMI, a significant increase can be found in both girls and boys (Interceptgirls = 19.85, Slopegirls = 0.63, Interceptboys = 19.65, Slopeboys = 0.63), mirroring earlier research (Bucchianeri et al. 2013).

  4. Virtually the same latent classes emerged in girls and boys when including BMI instead of adjusted BMI. More information can be requested from the first author.

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Acknowledgements

Margaux Verschueren has a Ph.D. Fellowship of the Research Foundation-Flanders. The authors thank the high school students for participating in the study.

Funding

Margaux Verschueren has a Ph.D. fellowship of the Research Foundation—Flanders (1125918N).

Authors’ Contributions

M.V. conceived of the study, participated in its design and coordination, performed the statistical analyses, and drafted the manuscript; L.C. collected the data of the present study, conceived of the study, participated in its design and coordination and drafted the manuscript; N.P. participated in the design of the manuscript and helped drafting it; A.B. participated in the design of the manuscript and helped drafting it; A.G. collected the data of the present study; P.M. participated in the design of the manuscript and helped drafting it; K.L. conceived of the study, participated in its design and coordination, performed the statistical analyses, and drafted the manuscript. All authors read and approved the final manuscript.

Data Sharing Declaration

The datasets generated and/or analyzed during the current study are not publicly available but are available from the corresponding author on reasonable request.

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Correspondence to Margaux Verschueren.

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The authors declare that they have no conflict of interest.

Ethical Approval

The study was approved by the ethical committee of the Faculty of Psychology and Educational Sciences, University of Leuven.

Informed Consent

All participants signed an informed consent form and active parental consent was obligatory for the participation of minors.

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Verschueren, M., Claes, L., Palmeroni, N. et al. Eating Disorder Symptomatology in Adolescent Boys and Girls: Identifying Distinct Developmental Trajectory Classes. J Youth Adolescence 49, 410–426 (2020). https://doi.org/10.1007/s10964-019-01174-0

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  • DOI: https://doi.org/10.1007/s10964-019-01174-0

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