© 2012 S. Karger GmbH, Freiburg 1662–4033/12/0056–0856$38.00/0 Original Article Obes Facts 2012;5:856–868 The Hyperactivity/Inattention Subscale of the Strengths and Difficulties Questionnaire Predicts Short- and Long-Term Weight Loss in Overweight Children and Adolescents Treated as Outpatients Andreas van Egmond-Froehlich a Monika Bullinger b Reinhard W. Holl c Ulrike Hoffmeister c Reinhard Mann d Cornelia Goldapp d Joachim Westenhoefer e Ulrike Ravens-Sieberer f Martina de Zwaan g a Department of Pediatrics, Medical University of Vienna, Vienna, Austria, b Department for Medical Psychology, University Clinic Hamburg-Eppendorf, Hamburg, c Department of Epidemiology, Ulm University, Ulm, d Federal Center for Health Education (BZgA), Cologne, e Department of Health Sciences, Hamburg University of Applied Sciences, f Research Unit Child Public Health, University Clinic Hamburg-Eppendorf, Hamburg, g Department of Psychosomatic Medicine and Psychotherapy, Hanover Medical School, Hanover, Germany Key Words Overweight Obesity Children Adolescents Prediction Hyperactivity Attention deficit Weight loss Abstract Objective: The success of treatment for pediatric obesity is variable and often unsatisfactory. This study elucidates the influence of inattention and hyperactivity/impulsivity on short- and long-term weight loss and maintenance after outpatient treatment. Methods: We included 8- to 16-year-old overweight and obese participants treated in 17 multidisciplinary outpatient treatment centers in a nationwide observational study. All treatment centers that reported long-term (1-year) follow-up weight data of at least 60% of the participants were included. At the beginning and end of treatment and at 1 year follow-up weight and height were measured at the center. Inattention and hyperactivity/impulsivity were assessed with the hyperactivity/ inattention subscale (HI) of the parent-rated Strengths and Difficulty Questionnaire (SDQ). General linear models were used with the standard deviation scores of the BMI (BMI-SDS) as dependent variable and HI scores as main independent variable adjusting for age, sex, base- line BMI-SDS, and center. Results: 394 participants were included (57% female, age: 11.7 8 2.0 years, baseline BMI-SDS 2.32 8.46 kg/m 2 ). HI scores were significantly associated with short- Received: August 26, 2011 Accepted: June 6, 2012 Published online: December 15, 2012 Dr. Andreas van Egmond-Fröhlich Department of Pediatrics SMZ-Ost Donauspital Langobardenstraße 122, 1220 Vienna (Austria) a.vanegmond-froehlich @ t-online.de www.karger.com/ofa DOI: 10.1159/000346138