Petkova H, Simic M, Nicholls D, et al. - In this observational, surveillance study, researchers used the Child and Adolescent Psychiatry Surveillance System—including monthly reporting by the child and adolescent psychiatrists from February 2015 through September 2015—to predict the incidence of anorexia nervosa (diagnosed according to DSM-5 criteria) in young individuals in contact with child and adolescent mental health services in the United Kingdom and Ireland. Over an 8-month surveillance period, 305 incident cases of anorexia nervosa were reported and evaluated. The majority occurred in young women from England, and were largely of white ethnicity. Incidence rose unwaveringly with age, peaking at 15 and 16 years for young women and men, respectively. Contrasting with former estimates, IRs for children aged 12 years and under have risen over the last 10 years. These findings thus offer new estimates of the incidence of anorexia nervosa among youth.