• MartiniMariana Contiero SanMCMSc. Researcher, Department of Pediatrics, School of Medical Sciences, Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil., AssumpçãoDaniela deDdPhD. Postdoctoral Researcher, Universidade Federal de São Paulo (Unifesp), São Paulo, and Researcher, Department of Public Health, School of Medical Sciences, Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil., BarrosMarilisa Berti de AzevedoMBPhD. Titular Professor, Department of Public Health, School of Medical Sciences, Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil., Ana Maria Canesqui, and Antonio de Azevedo Barros.
• MSc. Researcher, Department of Pediatrics, School of Medical Sciences, Universidade Estadual de Campinas (Unicamp), Campinas, SP, Brazil.
• Sao Paulo Med J. 2016 May 13; 134 (3): 219227219-27.

Context And ObjectiveThe high prevalence of obesity has led to public policies for combating it. People with normal weight may gain greater awareness of this issue and change their perceptions of their weight. The aim of this study was to evaluate the prevalence of body weight dissatisfaction among normal-weight adolescents, according to demographic and socioeconomic variables, health-related behavior and morbidities.Design And SettingPopulation-based cross-sectional study that used data from a health survey conducted in the city of Campinas, São Paulo, in 2008-2009.MethodsThe prevalence and prevalence ratios of weight dissatisfaction were estimated according to independent variables, by means of simple and multiple Poisson regression.Results573 normal-weight adolescents aged 10 to 19 years (mean age 14.7 years) were analyzed. The prevalence of weight dissatisfaction was 43.7% (95% confidence interval, CI: 37.8-49.8). Higher prevalences of weight dissatisfaction were observed among females, individuals aged 15 to 19 years, those whose households had eight or more domestic appliances, former smokers, individuals who reported alcohol intake and those who had one or more chronic diseases. Lower prevalence of dissatisfaction was observed among adolescents living in substandard housing. Among the normal-weight adolescents, 26.1% wished to lose weight and 17.6% wished to gain weight.ConclusionThe results from this study indicate that even when weight is seen to be within the normal range, a high proportion of adolescents express dissatisfaction with their weight, especially females, older adolescents and those of higher socioeconomic level.

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