Objective: To establish the prevalence of high blood pressure and associated factors among schoolchildren from Caxias do Sul, state of Rio Grande do Sul, Brazil. Methods:This school-based cross-sectional study assessed boys and girls aged 7 to 12 years from private and public schools. Three measurements of the children's blood pressure were taken during one visit to the schools. Weight, height, and waist circumference were measured. We also assessed the children's aerobic capacity (9-minute running test) and socioeconomic status. Statistical analysis was carried out using the chi-square test and logistic regression in order to control for confounding factors. Results:The sample included 1,413 children. Prevalence of schoolchildren with high blood pressure was 13.8% (systolic, diastolic, systolic/diastolic), and the proportion was higher (double) for obese and/or overweight children in comparison to normal-weight children. Children with increased waist circumference had 2.8 times greater chance of having high blood pressure levels than those with appropriate waist circumference (95% confidence interval 2.513-3.186 and p = 0.000). Individuals belonging to a high social class, defined according to the Brazilian National Economic Index, had 2.6 times greater chance of having high blood pressure. Conclusions:In the present study, schoolchildren aged 7 to 12 years from Caxias do Sul had high prevalence of high blood pressure levels; increased waist circumference, high socioeconomic status, and low physical capacity were associated with this condition. We suggest that measures be taken to promote the practice of physical activity and dietary control to improve blood pressure levels and thus reduce risk factors. J Pediatr (Rio J). 2009;85(4):335-340:Children, blood pressure, epidemiology, obesity, physical capacity. ResumoObjetivo: Verificar a prevalência de níveis pressóricos elevados e fatores associados em escolares de Caxias do Sul (RS).Métodos: Estudo transversal de base escolar avaliou crianças de 7 a 12 anos de ambos os sexos, provenientes das redes privada e pú-blica. Foram realizadas três medidas da pressão arterial em uma única situação. Mensurou-se peso, altura, circunferência da cintura, aptidão aeróbia (teste de corrida de 9 minutos) e situação socioeconômica. A estatística foi realizada através de teste do qui-quadrado e regressão logística para controle dos fatores de confusão.Resultados: Participaram do estudo 1.413 crianças. A prevalência de escolares com níveis pressóricos elevados foi de 13,8% (sistólico, diastó-lico, sistólico/diastólico), e a proporção foi maior (dobro) para as crianças obesas e/ou com sobrepeso do que para as com peso normal. Crianças com circunferência da cintura aumentada apresentaram 2,8 vezes mais chance de ter níveis pressóricos elevados do que as com circunferência adequada (intervalo de confiança de 95% 2,513-3,186 e p = 0,000). Já os indivíduos com nível alto no Índice Econômico Nacional apresentaram 2,6 vezes mais chance de terem pressão arterial elevada. Conclusõe...
This study aimed to identify the prevalence of physical inactivity and associated factors in adolescents, using a cross-sectional design with a sample of 1,455 adolescents (741 females
Rev Bras Cineantropom Desempenho Hum 2010, 12(2):90-97Resumo -A obesidade e o sobrepeso vêm aumentando suas prevalências em todo o mundo nos últimos anos. O objetivo do presente estudo foi estimar a prevalência de obesidade e sobrepeso em escolares de 7 a 12 anos (meninos e meninas), de uma cidade serrana do RS e verificar as possíveis associações com as seguintes variáveis: classe socioeconômica, aptidão aeróbica, hábitos alimentares e hábitos de lazer (sedentários e atividade física). Foram avaliados 1.442 escolares, através de um estudo transversal. As variáveis antropométricas estudadas foram massa corporal total e estatura. A obesidade foi definida pelo IMC, segundo sexo e idade. Foi realizada uma análise descritiva, bivariada e multivariada entre as variáveis independentes e o desfecho. As prevalências de obesidade e sobrepeso foram de 8% (IC=7,45) e 19,9% (IC= 19,17) respectivamente. As variáveis aptidão aeróbica (p<0,000 -RP=0,59), prática de esportes fora do horário escolar (p=0,005 -RP=1,41), hábitos sedentários (televisão, vídeo game e computador) (p=0,004 -RP=1,50) e nível socioeconômico alto (p<0,000 -RP=2,64) apresentaram associação estatística significante com obesidade e sobrepeso mesmo após ajuste na análise multivariada. As variáveis referentes a hábitos alimentares foram significativas na análise bivariada, mas não se mantiveram no modelo multivariado. As prevalências de obesidade e sobrepeso da população estudada encontram-se elevadas e devem ser motivo de preocupação das autoridades de saúde do município. Palavras-chave: Obesidade; Sobrepeso; Criança; Fatores de risco. (sedentary and physical activity). A cross-sectional study was conducted and 1,442 children were evaluated regarding body weight and height. Obesity was defined based on BMI for gender and age. Descriptive, bivariate and multivariate analyses were carried out between the independent variables and outcome. The prevalence of obesity and overweight was ) and 19.9% , respectively. Aerobic fitness (p<0.000, PR=0.59), PR=1.41), sedentary habits (TV, video games and computer) (p=0.004, PR=1.50), and high socioeconomic level (p<0.000, PR=2.64) . O presente estudo teve por objetivo estimar a prevalência de obesidade e sobrepeso em escolares de 7 a 12 anos de idade (meninos e meninas) em uma cidade serrana do RS, e verificar as possíveis associações com classe socioeconômica, aptidão aeróbica relacionada à saúde, hábitos alimentares e hábitos de lazer (hábitos sedentários e de atividades físicas). Foi utilizado um questionário estruturado (entrevista) para a avaliação das variáveis: classe socioeconômica, sexo, idade (em anos), hábitos alimentares e hábitos de lazer (hábitos sedentários e de atividade física). Os dados foram coletados diretamente através de entrevista com os alunos. Abstract -The prevalence of obesity and overweight has been increasing worldwide over the last few years. The purpose of this study was to estimate the prevalence of obesity and overweight in schoolchildren aged 7 to 12 years from a mid-sized city in sou...
CRF and BMI are independently associated to TC and BP in male and female youth, and individuals unfit/overweight have greater likelihood of presenting these risk factors.
ObjectiveTo identify the prevalence of nonspecific lumbar pain and associated factors among adolescents in Uruguaiana, state of Rio Grande do Sul.MethodsThis was a cross-sectional school-based study conducted among adolescents aged 10–17 years who were enrolled in the day shift of the municipal and state educational systems of Uruguaiana. This study evaluated 1455 adolescents. The data-gathering procedures involved two stages. Firstly, a questionnaire on sociodemographic indicators, behavioral patterns and habits of the daily routine and history of nonspecific lumbar pain was applied. Subsequently, height, body mass, flexibility and abdominal strength/resistance measurements were evaluated. To analyze the data, univariate, bivariate and multivariable methods were used and the significance level was taken to be 5% for all the tests.ResultsThe prevalence of lumbar pain among the adolescents evaluated was 16.1%. Grouped according to sex, the prevalence among males was 10.5% and among females, 21.6%. The variables of sex, body mass index, abdominal strength/resistance and physical activity level presented statistically significant associations with nonspecific lumbar pain. In the adjusted analysis, sex (OR = 2.36; p < 0.001), age (OR = 1.14; p < 0.001) and body mass index (OR = 1.44; p = 0.029) maintained significance in the final model.ConclusionsFemale adolescents of older age and who presented overweight or obesity had higher chances of developing nonspecific lumbar pain.
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