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Article History

Received: 22 August 2022

Accepted: 11 January 2023

First Online: 19 January 2023

Declarations

:

: The study was conducted in accordance with the Declaration of Helsinki. The study protocol was approved by the Ethics Committee of the Medical Faculty of the University of Leipzig (Reg. No. 264/10-ek). All children and their families were informed on the study content and the long-term use of data. Informed written consent was obtained from parents of all participants. Adolescents 16 years and older also provided written informed consent.

: Not applicable.

: AH received: research grants on eating disorders and obesity from the German Federal Ministry of Education and Research, German Research Foundation, and Roland Ernst Foundation for Healthcare; royalties for books on the treatment of obesity and eating disorders with Hogrefe and Kohlhammer; honoraria for workshops and lectures on obesity and eating disorders and their treatment; honoraria as editor of the International Journal of Eating Disorders and the journal Psychotherapeut; honoraria as a reviewer from Mercator Research Center Ruhr, Oxford University Press, and the German Society for Nutrition; and honoraria as a consultant for WeightWatchers, Zweites Deutsches Fernsehen, and Takeda. The authors LF, MV, RS, JB, MB, WK and TP declare that they have no competing interests.