Growth and Body Mass Index of Brazilians Ages 9 Through 17 Years (original) (raw)
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Trends of underweight, overweight, and obesity in Brazilian children and adolescents
Jornal de Pediatria (Versão em Português), 2013
Objective: To describe and analyze the trends of occurrence of underweight, overweight, and obesity in schoolchildren. Methods: This was a longitudinal study of trends conducted in a voluntary sample of Brazilian children and adolescents. The sample was grouped by year of collection (period I: 2005 and period II: 2007, and period III: 2009, age category (children: 7 to 10 years, and adolescents: 11 to 14 years), and stratified by gender. The body mass index was used to classify the nutritional profile. Trend analysis was verified using multinomial logistic regression (p < 0.05). Results: Mean occurrences were 2.11% for underweight, 22.27% for overweight, and 6.8% for obesity. There was a decrease of underweight in male adolescents from period I to II, as well as an increase in female children from period II to III. Regarding overweight, there was an increase followed by a decrease in male children. Regarding obesity, there was an increase from period I to II in all age groups and for both genders. Conclusion: The prevalence of underweight was less than 5% in all categories of age and gender. However, the categories of overweight and obesity showed higher values, and together comprised almost 30% of the young Brazilian population; moreover, a trend toward increase in prevalence of obesity was observed up to the year 2008, followed by the maintenance of these high prevalence rates. Conclusão: A prevalência do baixo peso apresenta valores menores que 5% em todas as categorias de idade e sexo. No entanto, na categoria do sobrepeso e da obesidade, encontramos ocorrências mais elevadas, atingindo, juntas, quase 30% da população infanto-juvenil brasileira; além disso, evidenciamos uma chance de aumento na prevalência da obesidade até o ano de 2008 e, após, uma manutenção destas altas prevalências.
Frontiers in Pediatrics, 2018
introduction: As with most emerging nations, Brazil lacks up-to-date data on the prevalence of obesity and overweight among its children. Of particular concern is the lack of data on children in early adolescence, considered by many to be the crucial stage for weight-related healthcare. Objective: To assess regional, socioeconomic, and gender differences in the prevalence of obesity and overweight among Brazilian early adolescents. Methods: A cross-sectional study was conducted on a racially diverse sample of students aged 10–13 years, from schools in three geographic regions (north, northeast, south) (N = 1,738). Data on gender, age, race, socioeconomic status (SES), weight, and height were obtained. Weight class was calculated from age-and gender-adjusted body mass index, based on children's weight and height. Bivariate and multivariable analyses, with post hoc tests, were conducted to estimate differences between groups and were corrected for multiple comparisons. Procedures were approved by institutional review boards at study sites. results: Analyses revealed a higher prevalence of obesity and/or overweight among: (1) children of higher SES; (2) children in southern Brazil; (3) males; and (4) Black females. conclusion: The most salient predictor of weight risk among Brazilian early adolescents is higher SES. This finding is consistent with previous findings of an inverse social gradient , in weight risk, among emerging-nation population groups.
Motriz: Revista de Educação Física, 2018
To estimate the prevalence of the classifications of overweight and obesity in adolescents according to three criteria for nutritional status classification (Conde & Monteiro, International Obesity Task Force-IOTF and Word Health Organization-WHO), and to investigate whether sociodemographic factors associated with overweight and obesity differ among the three criteria. Method: cross-sectional study with 1,132 adolescents (14-19 years old) living in Brazil. Body Mass Index (BMI) was classified according to three criteria for nutritional status. A self-administered questionnaire was used to collect sociodemographic information. Sexual maturation was measured by self-reported Tanner stage ratings. Multinomial logistic regression was used to estimate the Odds Ratio and 95% confidence intervals. Results: The prevalence of the classification "overweight" (from here on referred to simply as "overweight") was 23.1% for WHO; 23.7% for Conde & Monteiro criteria: and 19.2% for IOTF. Both boys and girls aged 17-19 were more likely to be overweight using the WHO and Conde & Monteiro criteria than those using the IOTF criteria. Girls in the postpubertal maturational stage were less likely of being overweight or obese using the three criteria. Conclusion: The three criteria result in different prevalence measures, with WHO and Conde and Monteiro criteria being more approximate in terms of prevalence and correlated factors when compared to IOTF criteria.
S.V.R. 318 Original The prevalence of overweight and obesity in adolescents in Bahia, Brazil
2016
Objetivo: Un estudio transversal se llevó a cabo con 1477 estudiantes de primaria matriculados en las escuelas públicas de Salvador, Bahía, Brasil, para evaluar la prevalencia del sobrepeso y la obesidad. Métodos: La muestra se determinó por la técnica de muestreo por conglomerados en dos etapas para la selec-ción de escuelas y clases. Más tarde, posteriori error se cal-culó. Los estudiantes fueron clasificados como sobrepeso u obesos de acuerdo con la clasificación de la Organización Mundial de la Salud, 2007. Ellos también fueron clasifica-dos de acuerdo a la edad, la etapa de maduración sexual, y la presencia de obesidad abdominal. Resultados: En general, el 9,3 % de los estudiantes
Prevalência de sobrepeso e obesidade em adolescentes escolares do município de Fortaleza, Brasil
2007
OBJECTIVES: to determine overweight and obesity prevalence in adolescent students in the Municipality of Fortaleza, Brazil and to estimate prevalence rates of public and private schools according to gender and age group (early and late adolescence). METHODS: a cross sectional study performed in the period of March to May 2003 comprised of 1158 adolescents, 571 from public schools and 587 from private schools. Overweight was defined when body mass index (BMI) was determined to be equal or above percentile 85 and under percentile 95; obesity was defined when BMI was determined as equal or over percentile 95, regardless of age and gender. RESULTS: total prevalence of overweight and obesity was of 19.5%. In private schools, overweight/obesity reached 23.9%, a rate higher than in public schools (18.0%) (p = 0.018). Overweight/ obesity prevalence in the male gender (19.6%) was similar to the female gender (19.0%) p = 0.80), in early adolescence, prevalence was (24.1%) higher than in late adolescence (15.0%) (p < 0.0001). CONCLUSIONS: overweight and obesity prevalence in adolescent students of the city of Fortaleza was determined to be high, in private schools and higher in early adolescence with no difference between genders.
Jornal de pediatria, 2002
Objective: to study the prevalence of obesity and overweight among children and adolescents from Northeast and Southeast regions of Brazil. Methods: data was collected form Life Pattern Research conducted by the Brazilian Institute of Geography and Statistics (IBGE) in 1997. A sample of 3,317 children and 3,943 adolescents was studied according age groups. Overweight (adolescents) and obesity (adolescents and children) were defined according to World Health Organization recommendations. Z-test was used to compare prevalence among age groups, sex and geographic region. The cutoff point for statistical significance was 0.05. Results: overweight prevalence in adolescents was 1.7% in Northeast and 4.2% in Southeast. Obesity prevalence in adolescents was 6.6% and 8.4% in children and 8.2% and 11.9% in Northeast and Southeast, respectively. Considering both regions prevalence of obese female children was 10.3%, the rate of obese adolescents was 9.3% and overweight adolescents represented 3.0%. Among males prevalence was 9.2%, 7.3% and 2.6%, respectively. Conclusions: obesity prevalence is lower in Northeast than Southeast among children with age from 2 to 17 years old. Overweight prevalence among adolescents was also lower in Northeast than in Southeast. The prevalence of obesity among younger than 2 and older than 18 years old was the same. Obesity prevalence is higher among breast-fed females. Among other age groups prevalence of obesity and overweight was the same for males and females. It is difficult to compare these results with other studies, since there are few populational studies and the criteria used to define overweight and obesity in children and adolescents varies in each study.y.
Arquivos Brasileiros de Endocrinologia & Metabologia, 2010
OBJECTIVE: To describe the percentile distribution of body mass index (BMI) in school adolescents, by gender and age, comparing them with international parameters. SUBJECTS AND METHODS: The study included 8,020 adolescents aged 10-15 years from 43 schools in the city of São Paulo, southeastern Brazil. BMI values of the study sample were distributed in percentiles and compared to international parameters (CDC, Must and cols. and Cole and cols.). RESULTS: Both male and female adolescents aged 10 to 14 years showed BMI cut-offs over the international parameters, especially in the P50-P85 percentile range. At the age of 15, the observed values were very similar to reference data; however, BMI values in the 95th percentile were much higher than international parameters. CONCLUSIONS: The study results show how important it is to use adequate BMI values for Brazilian adolescents aged 10-15 since international parameters may not reflect the actual nutritional status of this group.
Risk factors associated with overweight among adolescents from Western São Paulo state
Revista da Escola de Enfermagem da U S P
Portuguese / English: www.scielo.br/reeusp RESUMO Analisar a associação entre excesso de peso e diferentes fatores de risco familiares em adolescentes da região oeste do estado de São Paulo. Estudo transversal com 1779 adolescentes de ambos os sexos, e idade compreendida entre 11 e 17 anos. Calculou-se o índice de massa corporal e os fatores de risco familiares foram analisados por meio de questionário. O excesso de peso foi associado com o sexo masculino (RC=1,55 [1,22-1,97]), estudar em escola particular (RC=2,14 [1,56-2,94]) e maior escolaridade materna (RC=0,52 [0,33-0,83]). Iniciativas de combate à obesidade devem ser instauradas em meio escolar e atingir toda a estrutura familiar, bem como levar em consideração particularidades decorrentes do sexo.
Archivos latinoamericanos de nutrición, 2008
The objective of this study was to determine the prevalence of overweight and obesity among Brazilian schoolchildren according to gender, age and geographic region. A descriptive association study was conducted on 36,976 schoolchildren (20,914 boys and 16,062 girls aged 10 to 15 years) between 2004 and 2005 using secondary data originating from a school-based cross-sectional epidemiological survey. The cut-off body mass index proposed by the International Obesity Task Force was used as diagnostic criterion for overweight and obesity. The prevalence of overweight and obesity was 11.9% and 2.6%, respectively, with a higher proportion of overweight among girls and of obesity among boys. An association was observed between overweight, age and region, with the demonstration of higher odds ratios for overweight among children aged 10 to 13 years and children from the South, Center-West and Southeast regions. Obesity was significantly associated with gender, age and region, indicating high...