Burden of eating disorders in 5–13‐year‐old children in Australia

• Published in: Medical journal of Australia 2009-04, Vol.190 (8), p.410-414
• Main Authors: Madden, Sloane, Morris, Anne, Zurynski, Yvonne A, Kohn, Michael, Elliot, Elizabeth J
• Format: Article
• Language: English
• Subjects: Adolescent; Age of Onset; Australia - epidemiology; Biological and medical sciences; Child; Child, Preschool; Cost of Illness; Feeding and Eating Disorders - complications; Feeding and Eating Disorders - epidemiology; Feeding and Eating Disorders - therapy; Female; General aspects; Hospitalization - statistics & numerical data; Humans; Incidence; Male; Medical sciences; Mental disorders; Pediatric medicine; Population Surveillance; Prospective Studies
• ISSN: 0025-729X; 1326-5377
• DOI: 10.5694/j.1326-5377.2009.tb02487.x

Objective: To collect nationally representative epidemiological data on early‐onset eating disorders (EOEDs) in children. Design: Prospective, active surveillance using the Australian Paediatric Surveillance Unit with key informant design. Setting: Child health specialists in Australia (July 2002 to June 2005). Patients: Incident cases of EOEDs in children aged 5–13 years. Main outcome measures: Disease rates, demographic characteristics, clinical features and complications, hospitalisation, psychological comorbidity, and concordance of clinical features with Diagnostic and statistical manual of mental disorders, fourth edition (DSM‐IV) criteria. Results: We identified 101 children aged 5–13 years with EOEDs (median age, 12.2 years; range, 5.5–13.9 years), of whom one in four were boys. Most were hospitalised (78%), and the mean duration of hospitalisation was 24.7 days (range, 1–75 days). More than 70% of inpatients were admitted to specialised eating disorder units in paediatric teaching hospitals. Among inpatients, 37% met DSM‐IV diagnostic criteria for anorexia nervosa; although 61% had life‐threatening complications of malnutrition, only 51% met weight criteria. Psychological symptoms were similar to those in adults with anorexia nervosa: 67% of inpatients met both psychological diagnostic criteria for anorexia nervosa (fear of weight gain/fatness and misperception of body shape). Of 19 postmenarchal girls, 18 had secondary amenorrhoea. Nasogastric feeding was used in 58% of inpatients, and 34% received psychotropic medications. Conclusions: This is the first prospective national study of EOEDs. It demonstrates the limitations of applying DSM‐IV diagnostic criteria for anorexia nervosa to young children; the high proportion of boys affected by EOEDs; and the significant psychological comorbidity and high frequency of hospitalisation associated with EOEDs. Potentially life‐threatening medical complications are common at presentation, suggesting possible missed diagnoses and a need for education of health professionals. The study underlines the severity of EOEDs and the need for joint medical and psychiatric specialist management.