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Aims: The aim of the study was to investigate whether the use of purgative methods in patients with eating di- sorders (anorexia nervosa (AN) and bulimia nervosa (BN)) could be capable of producing changes in the nu- tritional status of the patients. Setting and Patients: The group under study was com- posed of 184 female eating disordered outpatients. One hundred and sixteen patients (63.0%) fulfilled the DSM- IV diagnostic criteria for BN (90 purging type, 26 non- purging type). Sixty eight patients (37.0%) fulfilled the DSM-IV criteria for the diagnosis of AN (48 restricting type, 20 binging-purging type). Methods: The asessment process included anthropo- metry (body circumferences and skinfold thickness) and body impedance analysis. Results: The two subgroups of AN patients signifi- cantly differed from each of the BN subgroups. From a nutritional point of view, some significant differences bet- ween the two DSM-IV subtypes of AN existed, but not between the purging type and the nonpurging type of BN. Conclusions: The paper discusses the clinical significance of these findings. An alternative subtypification of AN patients is proposed: 1) restricting type (patients who con- trol their food intake and do not purge); 2) purging type (patient with true episodes of binging which are followed by purgative behaviors); and 3) pseudopurging type (patients with subjective binging episodes who use purging methods). (Nutr Hosp 2003, 18:253-258)

An electronic system (PDA) to record dietary and physical activity in obese adolescents; data about efficiency and feasibility.