RESUMO
OBJECTIVE: This study identifies the risk factors for extreme weight-control behaviors among adolescents in public school in Salvador, northeastern Brazil. METHODS: A case-control study nested to a cross-sectional study, including 252 adolescents of both sexes, age between 11 to 17 years, with 84 cases and 168 age-matched controls was conducted. The variable outcome is represented by extreme weight-control behaviors, integrated by following the variables: self-induced vomiting and the use of laxatives, diuretics, or diet pills. Covariables included body image dissatisfaction, dieting, prolonged fasting, and self-perception of body weight. The study also investigated the demographic and anthropometric variables and economic conditions of the students' families. Conditional logistic regression was used to identify risk factors for the adoption of extreme weight-control behaviors among adolescents. RESULTS: Among the adolescents investigated, the conditional logistic regression explained 22% the occurrence of extreme weight-control behaviors and showed that these behaviors were positively associated to overweight (odds ratio [OR] = 3.61; 95% confidence interval [CI], 1.42-9.17), body image dissatisfaction (OR = 3.87; 95% CI, 1.75-8.54), and the adoption of a restrictive diet (OR = 2.83; 95% CI, 1.16-6.91). CONCLUSIONS: The results of this study suggest that among adolescents, overweight, body image dissatisfaction, and restrictive diet are important risk factors to adoption of extreme weight-control behaviors.
Assuntos
Depressores do Apetite , Diuréticos , Laxantes , Instituições Acadêmicas , Redução de Peso/efeitos dos fármacos , Adolescente , Imagem Corporal , Brasil/epidemiologia , Estudos de Casos e Controles , Criança , Dieta Redutora , Feminino , Humanos , Masculino , Razão de Chances , Satisfação Pessoal , Fatores de RiscoRESUMO
OBJETIVO: Este estudo objetivou identificar a soroprevalência da doença celíaca em adolescentes de escolas públicas da cidade de Salvador, Bahia. MÉTODO: Trata-se de um estudo transversal com amostra probabilística de 1.213 adolescentes de 11 a 17 anos, de ambos os sexos. O índice de massa corporal foi utilizado para o diagnóstico do estado nutricional, adotando-se os percentis segundo idade e sexo, propostos pela World Health Organization. O anticorpo anti-transglutaminase humana da classe imunoglobulina A (anti-tTG-IgA) foi adotado como teste sorológico para triagem da doença celíaca e foi determinado pela técnica do ensaio imunoabsorvente ligado à enzima (ELISA). Foi realizada análise descritiva, utilizando-se a proporção e a média (desvio padrão). RESULTADOS: O sexo feminino predominou entre os adolescentes, e a maioria encontrava-se com adequado estado nutricional. O anticorpo anti-tTG-IgA foi positivo em 6/1.213 (0,49%) adolescentes. CONCLUSÃO: A soroprevalência de doença celíaca entre os adolescentes estudados foi 0,49%. Novas investigações são necessárias para confirmar a prevalência de doença celíaca nessa faixa etária. .
OBJECTIVE: This study aimed to identify the seroprevalence of celiac disease in adolescents from public schools in the city of Salvador, Bahia. METHODS: This was a cross-sectional study with probabilistic sample of 1,213 adolescents, aged 11 to 17 years old, of both genders. The body mass index was used to determine the participants' nutritional status based on the percentiles for age and gender recommended by the World Health Organization. Measurement of the anti-human transglutaminase immunoglobulin A (anti-tTG-IgA) antibody was established as the specific screening test for celiac disease, which involved an enzyme-linked immunosorbent assay (ELISA). Descriptive analysis was performed using proportions and means (standard deviation). RESULTS: The female gender prevailed in the sample, and most of the participants had normal weights. The anti-tTG-IgA antibody was positive in 6/1,213 (0.49%) adolescents. CONCLUSION: The seroprevalence of celiac disease was 0.49% in the investigated adolescents. Further studies are necessary to establish the prevalence of celiac disease in this age range. .
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Doença Celíaca/sangue , Doença Celíaca/diagnóstico , Anticorpos Anti-Idiotípicos/imunologia , Programas de Rastreamento , Transglutaminases/imunologiaRESUMO
OBJECTIVE: This study aimed to identify the seroprevalence of celiac disease in adolescents from public schools in the city of Salvador, Bahia. METHODS: This was a cross-sectional study with probabilistic sample of 1,213 adolescents, aged 11 to 17 years old, of both genders. The body mass index was used to determine the participants' nutritional status based on the percentiles for age and gender recommended by the World Health Organization. Measurement of the anti-human transglutaminase immunoglobulin A (anti-tTG-IgA) antibody was established as the specific screening test for celiac disease, which involved an enzyme-linked immunosorbent assay (ELISA). Descriptive analysis was performed using proportions and means (standard deviation). RESULTS: The female gender prevailed in the sample, and most of the participants had normal weights. The anti-tTG-IgA antibody was positive in 6/1,213 (0.49%) adolescents. CONCLUSION: The seroprevalence of celiac disease was 0.49% in the investigated adolescents. Further studies are necessary to establish the prevalence of celiac disease in this age range.
Assuntos
Doença Celíaca/sangue , Doença Celíaca/diagnóstico , Adolescente , Anticorpos Anti-Idiotípicos/imunologia , Criança , Feminino , Humanos , Masculino , Programas de Rastreamento , Transglutaminases/imunologiaRESUMO
[{"text": "OBJECTIVE: To identify schoolchildren\"s dietary patterns and investigate the demographic, social, and economic determinants of the differences found between patterns. METHODS: The sample consisted of 1,330 students aged 11 to 17 years attending the public schools of Salvador, Bahia, Brazil. The subjects' food intake data were collected by a semiquantitative Food Frequency Questionnaire comprising 97 food items. All information was collected during a single interview. The exposure variables were gender, age, and socioeconomic class, and the outcome variables were categorized food consumption pattern in \"mixed pattern\", \"traditional pattern\", and \"healthy pattern\". The data were treated by simple and multiple linear regression analyses and the dietary patterns determined by factor analysis. RESULTS: Most participants were female (56.9%) and over 13 years old (79.2%). The \"mixed pattern\" was positively associated with females (β=0.181, p<0.001). The \"traditional pattern\" was negatively associated with classes D, C, and B (β=-0.149, p<0.007), and the \"healthy pattern\" was negatively associated with females (β=-0.200, p>0.0001) and classes D, C, and B (β=-0.125, p<0.023). CONCLUSION: Three dietary patterns were identified among the adolescents, namely mixed, traditional, and healthy. Gender and socioeconomic class were associated with dietary patterns. Male teenagers and those in the lower socioeconomic classes had a healthier dietary pattern than their peers of higher socioeconomic classes and females. .", "_i": "en"}, {"text": "OBJETIVO: Identificar os padrões de consumo alimentar entre escolares e investigar os determinantes demográficos, sociais e econômicos dos diferentes padrões encontrados. MÉTODOS: Foi estudada uma amostra de 1 330 indivíduos entre 11 e 17 anos, estudantes da rede pública de ensino, em Salvador, Bahia. A avaliação do consumo alimentar dos adolescentes foi obtida por meio de Questionário da Frequência Alimentar semiquantitativo, com 97 itens alimentares, sendo as informações coletadas em uma única entrevista com os estudantes. As variáveis de exposição foram sexo, idade e o indicador econômico; a variável desfecho foi padrão de consumo alimentar categorizada em misto, tradicional e saudável. Os dados foram analisados pela regressão linear simples e múltipla, e os padrões alimentares foram obtidos a partir da análise fatorial. RESULTADOS: A partir da análise das características da população, observou-se o predomínio do sexo feminino (56,9%), e idade maior que 13 anos (79,2%). A adoção do padrão alimentar misto esteve associada positivamente ao sexo feminino (β= 0,181), p<0,001. O padrão tradicional associou-se negativamente às classes D, C, B (β=-0,149), p<0,007, enquanto o padrão alimentar saudável esteve associado negativamente ao sexo feminino (β=-0,200), p<0,0001 e às classes D, C, B (β=-0,125), p<0,023. CONCLUSÃO: Foram identificados, entre os adolescente, três padrões alimentares: misto, tradicional e saudável. Observou--se que o sexo e o indicador da condição econômica estiveram associados aos padrões alimentares. Os adolescentes da classe econômica mais baixa e do sexo masculino adotam consumo alimentar mais saudável em relação àqueles das ...", "_i": "pt"}]
RESUMO
OBJECTIVE: To assess the association between physical inactivity and overweight in an adolescent 10-14 year-old population of students in Salvador (Bahia, Brazil). METHODS: Cross-sectional study assessing adolescents enrolled in state and municipal schools of the city of Salvador (Bahia, Brazil). Subjects' anthropometric status, level of physical activity, sexual maturation, and food consumption were investigated as well as their socioeconomic and environmental status. A BMI equal to or above the 85th percentile ranked an adolescent in the overweight category. Physical inactivity characterized the adolescent who practiced moderate or vigorous physical activity for less than 300 minutes per week. A multivariate logistic regression analysis was used to check the associations of interest. RESULTS: The prevalence of excess weight was 11.8%. A positive association was shown between physical inactivity and overweight/obesity (PR male: 2,263 95%CI: 1,132 - 4,258), only statistically significant for male subjects. CONCLUSIONS: Results suggest a positive association between physical inactivity and overweight only among male participants. The investigation of this gender difference is vital and the authors suggest studies with more appropriate designs to elucidate the relationship.
Assuntos
Sobrepeso/epidemiologia , Comportamento Sedentário , Adolescente , Brasil , Criança , Estudos Transversais , Feminino , Humanos , MasculinoRESUMO
OBJETIVO: Avaliar a associação entre inatividade física e excesso de peso em população de adolescentes do ensino fundamental de Salvador/BA. MÉTODOS: Trata-se de um estudo transversal que avaliou adolescentes matriculados na rede pública municipal e estadual de ensino da cidade do Salvador/BA. Foram investigados o estado antropométrico, o nível de atividade física, a maturação sexual, o consumo alimentar, além das condições socioeconômicas e ambientais dos participantes. O IMC igual ou acima do percentil 85 classificava o adolescente na categoria de excesso de peso. A inatividade física caracteriza o adolescente que praticava atividades físicas moderadas ou vigorosas por um tempo menor do que 300 minutos/semana. Realizou-se análise de regressão logística multivariada para verificar as associações de interesse. RESULTADOS: A prevalência de excesso ponderal foi de 11,8 por cento. Os achados indicaram associação positiva e estatisticamente significante entre inatividade física e sobrepeso/obesidade entre os rapazes (RPmasculino: 2.263 IC 95 por cento: 1.132 - 4.258). CONCLUSÕES: Os resultados indicam associação entre inatividade física e excesso de peso somente entre os participantes masculinos. A investigação desta diferença entre os sexos é fundamental, o que nos motiva sugerir a adoção de estudos com desenhos mais adequados.
OBJECTIVE: To assess the association between physical inactivity and overweight in an adolescent 10-14 year-old population of students in Salvador (Bahia, Brazil). METHODS: Cross-sectional study assessing adolescents enrolled in state and municipal schools of the city of Salvador (Bahia, Brazil). Subjects' anthropometric status, level of physical activity, sexual maturation, and food consumption were investigated as well as their socioeconomic and environmental status. A BMI equal to or above the 85th percentile ranked an adolescent in the overweight category. Physical inactivity characterized the adolescent who practiced moderate or vigorous physical activity for less than 300 minutes per week. A multivariate logistic regression analysis was used to check the associations of interest. RESULTS: The prevalence of excess weight was 11.8 percent. A positive association was shown between physical inactivity and overweight/obesity (PR male: 2,263 95 percentCI: 1,132 - 4,258), only statistically significant for male subjects. CONCLUSIONS: Results suggest a positive association between physical inactivity and overweight only among male participants. The investigation of this gender difference is vital and the authors suggest studies with more appropriate designs to elucidate the relationship.