RESUMO Objetivo: Identificar as prevalências de insatisfação com o peso corporal em adolescentes de dez a 19 anos, segundo o sexo. Fontes de dados: Foram selecionados estudos transversais que descreviam as prevalências de insatisfação com o peso em adolescentes saudáveis, nos idiomas inglês, português e espanhol. Não foram estabelecidos limites para o ano de publicação ou país. Utilizaram-se as bases de dados US National Library of Medicine/National Institutes of Health (PubMed), Ovid® (Wolters Kluwer), The Cumulative Index to Nursing and Allied Health Literature (CINAHL) e American Psychological Association (PsycINFO®), entre maio de 2019 e janeiro de 2020. Síntese dos dados: Inicialmente identificaram-se 3.700 registros e dez estudos em outras fontes de dados. Após a remoção dos estudos duplicados, foram rastreados 1.732 registros para a leitura de títulos e resumos, dos quais 126 artigos foram selecionados para avaliação do texto completo. Por fim, foi incluído nesta pesquisa o total de 34 artigos. Os estudos foram publicados entre 1997 e 2020. Os tamanhos amostrais variaram de <150 a >103.000 adolescentes. As prevalências de insatisfação com o peso variaram de 18,0 a 56,6% em ambos os sexos (10,8 a 82,5% no sexo masculino e 19,2 a 83,8% no feminino). Conclusões: Esta revisão identificou elevada prevalência de insatisfação com o peso corporal em adolescentes, superior em meninas. Tais informações podem contribuir para o planejamento de programas de saúde e educação direcionados à questão do peso em adolescentes.

ABSTRACT Objective: To identify the prevalence of weight dissatisfaction among adolescents aged 10-19 years and stratify the analysis by sex. Data source: A literature review of cross-sectional studies among healthy adolescents was performed. The U.S. National Library of Medicine/National Institutes of Health (PubMed), Ovid® (Wolters Kluwer), The Cumulative Index to Nursing and Allied Health Literature (CINAHL), and American Psychological Association (PsycINFO®) databases were searched between May 2019 and January 2020. Data synthesis: Initially, 3,700 records were identified, and 10 papers were obtained through other sources. After the removal of duplicates, 1,732 records were screened based on the titles and abstracts, and 126 were preselected for full-text analysis. After the application of the eligibility criteria, 34 papers were included in the present review. The studies were published between 1997 and 2020. The sample size ranged from <150 to >103,000 adolescents. The prevalence of weight dissatisfaction ranged from 18.0 to 56.6% in both sexes (10.8-82.5% among boys and 19.2-83.8% among girls). Conclusions: Based on the findings of the present systematic review, the prevalence of weight dissatisfaction is high among adolescents, especially girls. Such information can contribute to the planning of health and education programs addressing the issue of weight in adolescents.

ABSTRACT BACKGROUND: Individuals who are overweight or obese often underestimate their size, and they are less likely to consider their weight status to be a health problem and consequently to make lifestyle changes. OBJECTIVES: To estimate the proportion of satisfaction with weight among adolescents classified as overweight/obese, according to sociodemographic factors, morbidities and health-related behaviors. DESIGN AND SETTING: Cross-sectional population-based study conducted among adolescents aged 10 to 19 years in the city of Campinas (SP), Brazil. METHODS: The sample (n = 217) included participants with self-reported weight and height who were classified as overweight or obese, based on body mass index (BMI) according to age-specific cutoff points recommended by the World Health Organization. Participants whose answer to the question: “Would you like to gain or lose weight?” was “no” (i.e. no change) were deemed to be satisfied with their body weight. Odds ratios and 95% confidence intervals (95% CI) were calculated using logistic regression. RESULTS: The proportions of the respondents who were satisfied with their weight were 75.8% (95% CI: 65.3-83.9) among the overweight adolescents and 24.2% (95% CI: 16.1-34.7) among the obese adolescents (P < 0.01). Satisfaction was lower among individuals aged 15 to 19 years (versus 10 to 14 years), those born outside of Campinas (versus in Campinas), those with ≥ 8 household appliances (versus < 8), and those reporting ≥ two health complaints (versus none). CONCLUSIONS: More than half of the overweight adolescents and almost a quarter of the obese adolescents were satisfied with their weight. These results support the need for strategies for healthy weight management among Brazilian adolescents.

The Italian program for human biomonitoring (HBM) of chemical elements, PROgram for Biomonitoring of the Exposure (PROBE), started in 2008 with the aim to provide the knowledge about risk assessment of the Italian population following the environmental exposure to metals. The project is implemented through a HBM campaign for the production of data on 19 metals in the blood and serum of subjects living in different Italian Regions. The metals studied are: antimony, beryllium, cadmium, chromium, cobalt, iridium, lead, manganese, mercury, molybdenum, nickel, palladium, platinum, rhodium, thallium, tin, tungsten, uranium and vanadium. The first phase of the project has included the development and validation of laboratory protocols for the collection of fluids and quantification of metals. The second phase provides the HBM data expressed as the reference values (RVs) for the Italian population, i.e., as the level of metals in the general population not occupationally exposed. In this paper, the experimental protocols used for the maintenance of high standards of analysis and the RVs for metals in serum of inhabitants of two Italian Regions (Calabria and Umbria) are described.

Il programma italiano per il biomonitoraggio umano degli elementi chimici, PROgramma per il Biomonitoraggio dell'Esposizione (PROBE), è stato avviato nel 2008 con l'obiettivo di fornire le conoscenze necessarie per la stima del rischio della popolazione italiana in seguito all'esposizione ambientale a metalli. Il progetto è realizzato attraverso una campagna di biomonitoraggio per ottenere dati su 19 metalli nel sangue e nel siero di soggetti distribuiti in varie regioni italiane. I metalli studiati sono: antimonio, berillio, cadmio, cobalto, cromo, iridio, manganese, mercurio, molibdeno, nichel, palladio, piombo, platino, rodio, stagno, tallio, tungsteno, uranio e vanadio. La prima fase del progetto ha previsto lo sviluppo e la validazione di protocolli di laboratorio per la raccolta dei fluidi e la quantificazione dei metalli. Nella seconda fase si forniscono i dati di biomonitoraggio, espressi come i valori di riferimento (VR) per la popolazione italiana, ovvero come i livelli dei metalli nella popolazione generale non professionalmente esposta. In questo lavoro si presentano i protocolli sperimentali utilizzati per il mantenimento di elevati standard analitici e i VR per i metalli nel siero di residenti in due regioni italiane (Calabria e Umbria).