Do risk factors differentiate DSM-5 and drive for thinness severity groups for anorexia nervosa?

"Declarations Ethical approval and consent to participateEthical approvals were obtained from all participated hospitals and research organisations. Consents were obtained from all participants in accordance with the Declaration of Helsinki. Consent for publicationNot applicable. Competing interestsThe authors declare that they have no competing interests. Competing interests The authors declare that they have no competing interests."

"Funding Financial support was received from the European Union (Framework-V Multicenter Research Grant, QCK1-1999-916), Fondo de Investigacion Sanitaria (CIBER; CB06/03/0034) and Generalitat de Catalunya (2005SGR00322). The CIBER Fisiopatologia de la Obesidad y Nutricion is an initiative of ISCIII. All these funding sources had no further role in study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the paper for publication."