[Eating disorders--an increasing problem in children and adolescents?].

Recent evidence from epidemiological studies suggests that the prevalence of eating disorders is rising in adolescents and the age of onset has fallen. An average prevalence rate for anorexia nervosa of 0.5% and for bulimia nervosa of 0.5% was found for teenaged girls. For both disorders the highest incidence was found in females aged 10-19 years. Disordered eating attitudes and behaviors are common in a substantial proportion of adolescents and are associated with an increased risk of the manifestation of a full disorder or other forms of emotional or behavior problems (depression, anxiety, substance abuse, suicidal behavior). For both disorders a complex multifactorial aetiology has been postulated, involving the interaction of genetic predisposition and certain specific environmental risk factors, particularly social factors. Next to other comorbid psychiatric conditions medical complications resulting from semistarvation and purging often require an inpatient treatment. The multimodal therapeutic approach focus on controlled weight restoration in combination of specific psychoeducational and psychotherapeutic methods involving the patients and their families.