1. Section of Epidemiology, Department of Public Health Faculty of Health and Medical Sciences, University of Copenhagen Copenhagen Denmark
2. Center for Clinical Research and Prevention The Capital Region Copenhagen Denmark
3. Outpatient Clinic for Eating disorders Psychiatric Centre Ballerup, The Capital Region Copenhagen Denmark
4. Clinic for Eating disorders Centre of Child‐ & Adolescent Psychiatry Roskilde Denmark
5. Department of Clinical Medicine Faculty of Health and Medical Sciences, University of Copenhagen Copenhagen Denmark
6. National Institute of Public Health University of Southern Denmark Copenhagen Denmark