Associação entre discriminação racial e cárie dentária em adolescentes / Association between racial discrimination and tooth decay in adolescents / Asociación entre discriminación racial y caries en adolescentes

Objetivo: Identificar a associação entre a presença de discriminação racial e a situação de saúde bucal relacionada à cárie dentária. Método:Estudo transversal, com amostra de 209 adolescentes, avaliados em ambiente escolar através da aplicação de questionário e exame clínico bucal. As variáveis foram: discriminação racial percebida, sociodemográficas e cárie dentária (presença de pelo menos um dente cariado). Os dados foram analisados pelos testes de Qui-quadrado de Pearson ou exato de Fisher e pela Regressão Logística Múltipla. Resultados:A maioria dos adolescentes era negra (66%), do sexo feminino (56,2%), com idade entre 14 e 16 anos (56%), heterossexual (73,2%) e cristã (59,3%). Em relação à situação socioeconômica 41,1% recebiam bolsa família e 19,2% tinham renda familiar de até um salário mínimo. A maior parte dos respondentes apresentou cárie (97,5%) e cerca de um quarto perdeu algum dente permanente. O índice médio do CPO-D foi de 3,7. Houve associação entre a raça/cor conforme o IBGE (p=0,033) e pela escalade cores da pele (p=0,012) e a ocorrência de cárie dentária. Adolescentes negros apresentaram duas vezes mais chances de terem cárie dentária (OR=2,11;IC=1,08-4,15). Conclusão:Os achados deste estudo permitem concluir que observou-se associação entre discriminação racial e cárie dentária.

Objective: To identify the association between the presence of racial discrimination and the oral health situation related to tooth decay. Method:Cross-sectional study, with a sample of 209 adolescents, evaluated in a school environment through the application of a questionnaire and clinical oral examination. The variables were perceived racial discrimination, sociodemographics, tooth decay (presence of at least one decayed tooth). Data were analyzed using Pearson's Chi-square or Fisher's exact tests and Multiple Logistic Regression. Results:The majority of adolescents were black (66%), female (56.2%), aged between 14 and 16 years old (56%), heterosexual (73.2%) and Christian (59.3%) . Regarding socioeconomic situation, 41.1% received a family allowance and 19.2% had a family income of up to one minimum wage. Most respondents had cavities (97.5%) and around a quarter lost some permanent teeth. Therewas an association between race/color according to IBGE (p=0.033) and skin color scale (p=0.012) and the occurrence of tooth decay. Black adolescents were twice as likely to have tooth decay (OR=2.11; CI=1.08-4.15). Conclusion:The findings of this study allow us to conclude that an association was observed between racial discrimination and tooth decay.

Objetivo:Identificar a associação entre a presença de discriminação racial e a situação de saúde bucal relacionada à cárie dentária. Método:Estudio transversal, con una muestra de 209 adolescentes, evaluados en el ambiente escolar mediante la aplicación de un cuestionario y examen clínico oral. Las variables fueron discriminación racial percibida, sociodemográfica, caries (presencia de al menos un diente cariado). Los datos se analizaron mediante las pruebas de Chi-cuadrado de Pearson o exacta de Fisher y Regresión Logística Múltiple. Resultados:La mayoría de los adolescentes eran negros (66%), mujeres (56,2%), con edades entre 14 y 16 años (56%), heterosexuales (73,2%) y cristianos (59,3%). En cuanto a la situación socioeconómica, el 41,1% recibía una asignación familiar y el 19,2% tenía un ingreso familiar de hasta un salario mínimo. La mayoría de los encuestados tenía caries (97,5%) y alrededor de una cuarta parte perdió algunos dientes permanentes. El índice CPOD promedio fue de 3,7. Hubo asociación entre raza/color según IBGE (p=0,033) y escala de color de piel (p=0,012) y la aparición de caries. Los adolescentes negros tenían el doble de probabilidades de tener caries (OR=2,11; IC=1,08-4,15). Conclusión:Los hallazgos de este estudio nos permiten concluir que se observó una asociación entre la discriminación racial y la caries

Is Binge Drinking Associated with Suicidal Behaviors among Brazilian Adolescents?

OBJECTIVE: To evaluate the association between suicidal behaviors and binge drinking among Brazilian adolescents. METHODS: A cross-sectional study was conducted with 2,476 students 14 to 19 years of age from 26 public high schools in the city of Olinda, Brazil. Data collection occurred between March and June 2018 through the self-administered Youth Risk Behavior Survey. Descriptive analysis and Poisson regression (p < 0.05, 95%CI) were performed. RESULTS: The prevalence of suicidal ideation, planning and attempt in the previous 12 months was 23.7%, 17.4% and 13.5%, respectively. Suicidal ideation was associated with binge drinking one to two days (PR:1.053, 95%CI:1.011-1.096) and ≥ three days in the previous 30 days (PR:1.069, 95%CI:1.016-1.125), sadness/hopelessness in the previous 12 months (PR:1.313, 95%CI:1.267-1.360), a report of family physical aggression in the previous 12 months (PR:1.111, 95%CI:1.068-1.155), the female sex (PR:1.082, 95%CI:1.049-1.115) and a non-nuclear family (PR:1.037, 95%CI:1.004-1.071). Suicidal planning was associated with sadness/hopelessness in the previous 12 months (PR:1.257, 95%CI:1.214-1.302), report of family physical aggression in the previous 12 months (PR:1.110, 95%CI:1.065-1.156) and the female sex (PR:1.072, 95%CI:1.041-1.104). Suicide attempt was associated with binge drinking ≥ three days in the previous 30 days (PR:1.062, 95%CI:1.008-1.119), sadness/hopelessness in the previous 12 months (PR:1.202, 95%CI:1.161-1.244), report of family physical aggression in the previous 12 months (PR:1.105, 95%CI:1.060-1.153) and the female sex (PR:1.064, 95%CI:1.034-1.095). The Catholic (PR:0.938, 95%CI:0.899-0.979; PR:0.925, 95%CI:0.888-0.9865; PR:0.937, 95%CI:0.899-0.977) and Evangelical (PR:0.956, 95%CI:0.922-0.992; PR:0.954, 95%CI:0.919-0.991) religions acted as a possible protective factor against suicidal behaviors. CONCLUSIONS: Suicidal ideation and attempt were associated with binge drinking.

Demand for health services or professionals among adolescents: a multilevel study. / Procura por serviços ou profissionais de saúde entre adolescentes: um estudo multinível.

This study aimed to analyze the demand for health services or professionals by adolescents with individual determinants and contextual variables (school teaching modality and Social Vulnerability Index). Data were collected from March to June 2018, in state public schools in Olinda, Pernambuco, Brazil, through a structured questionnaire with questions from the Youth Risk Behavior Survey (YRBS) and the National School Health Survey (PeNSE). Among the 2,454 adolescents, the proportion of those looking for a health service was higher among women; in adolescents whose mothers had a minimum of nine schooling years; in the physically active; and whose parents did not receive a family aid (Bolsa Família). We observed that the contextual variables did not influence the demand for health services among adolescents. In the third model of the multilevel analysis, which analyzed the individual variables, we observed that only females (OR=1,80), having a mother with schooling greater than or equal to 9 years of study (OR=1,30), not receiving Bolsa Família (OR=1,23), and physically active (OR=1,32) were associated with an increased demand for health services or professionals.

O objetivo deste estudo foi analisar a procura por serviços ou profissionais de saúde pelos adolescentes com determinantes individuais e com variáveis contextuais, modalidade de ensino da escola e Índice de Vulnerabilidade Social. Os dados foram coletados no período de março a junho de 2018, em escolas públicas estaduais de Olinda, Pernambuco, através de um questionário estruturado com questões do Youth Risk Behavior Survey (YRBS) e da Pesquisa Nacional de Saúde do Escolar (PeNSE). Dentre os 2.454 adolescentes, a proporção daqueles que procuram por um serviço de saúde foi maior: no sexo feminino; em adolescentes cujas as mães tivessem escolaridade mínima de nove anos; naqueles fisicamente ativos; e cujos responsáveis não recebiam Bolsa Família. Observou-se que as variáveis contextuais não influenciaram a procura por serviços de saúde entre os adolescentes. No terceiro modelo da análise multinível, que analisou as variáveis individuais, observou-se que apenas o sexo feminino (OR=1,80), ter mãe com escolaridade maior ou igual a nove anos de estudo (OR=1,30), não receber Bolsa Família (OR=1,23) e ser ativo fisicamente (OR=1,32) foram associados a uma maior procura por serviços ou profissionais de saúde.

Procura por serviços ou profissionais de saúde entre adolescentes: um estudo multinível / Demand for health services or professionals among adolescents: a multilevel study

Resumo O objetivo deste estudo foi analisar a procura por serviços ou profissionais de saúde pelos adolescentes com determinantes individuais e com variáveis contextuais, modalidade de ensino da escola e Índice de Vulnerabilidade Social. Os dados foram coletados no período de março a junho de 2018, em escolas públicas estaduais de Olinda, Pernambuco, através de um questionário estruturado com questões do Youth Risk Behavior Survey (YRBS) e da Pesquisa Nacional de Saúde do Escolar (PeNSE). Dentre os 2.454 adolescentes, a proporção daqueles que procuram por um serviço de saúde foi maior: no sexo feminino; em adolescentes cujas as mães tivessem escolaridade mínima de nove anos; naqueles fisicamente ativos; e cujos responsáveis não recebiam Bolsa Família. Observou-se que as variáveis contextuais não influenciaram a procura por serviços de saúde entre os adolescentes. No terceiro modelo da análise multinível, que analisou as variáveis individuais, observou-se que apenas o sexo feminino (OR=1,80), ter mãe com escolaridade maior ou igual a nove anos de estudo (OR=1,30), não receber Bolsa Família (OR=1,23) e ser ativo fisicamente (OR=1,32) foram associados a uma maior procura por serviços ou profissionais de saúde.

Abstract This study aimed to analyze the demand for health services or professionals by adolescents with individual determinants and contextual variables (school teaching modality and Social Vulnerability Index). Data were collected from March to June 2018, in state public schools in Olinda, Pernambuco, Brazil, through a structured questionnaire with questions from the Youth Risk Behavior Survey (YRBS) and the National School Health Survey (PeNSE). Among the 2,454 adolescents, the proportion of those looking for a health service was higher among women; in adolescents whose mothers had a minimum of nine schooling years; in the physically active; and whose parents did not receive a family aid (Bolsa Família). We observed that the contextual variables did not influence the demand for health services among adolescents. In the third model of the multilevel analysis, which analyzed the individual variables, we observed that only females (OR=1,80), having a mother with schooling greater than or equal to 9 years of study (OR=1,30), not receiving Bolsa Família (OR=1,23), and physically active (OR=1,32) were associated with an increased demand for health services or professionals.

LGB prevalence in schools is associated with unhealthy weight-control behaviors in lesbian, gay, and bisexual youth: a multilevel analysis.

BACKGROUND: Previous studies have found that a school climate of more heteronormativity is associated with adverse effects on the mental health of LGB students. Accordingly, our aim was to assess the association between lower LGB prevalence in schools and unhealthy weight-control behaviors among LGB youth. METHODS: A cross-sectional, multilevel study based in public high schools in the city of Olinda, Northeast Brazil. A multilevel logistic regression was performed, including 2500 adolescents enrolled in 27 schools. The contextual variable was the prevalence of LGB youth in each school (as a proxy for heteronormativity in schools), while the outcome was unhealthy weight-control behaviors (fasting, purging, and taking diet pills). We controlled for socioeconomic characteristics (age, sex, receiving a family allowance), obesity, and self-reported happiness. RESULTS: Lower LGB prevalence in schools was associated with higher odds of engaging in unhealthy weight-control behaviors (OR: 1.5, 95%CI: 1.0, 2.2) among all youth, regardless of sexual orientation. No cross-level interactions between school context and individual characteristics were statistically significant. CONCLUSION: Lower LGB prevalence in schools was associated with a higher risk of unhealthy weight-control behaviors in youth regardless of sexual orientation, which may reflect either the contextual influence of school climate, or may be due to residual confounding.

Association between cigarette use and adolescents' behavior.

OBJECTIVE: To determine the prevalence of cigarette use among adolescents and to identify associated health risk behaviors. METHODS: This is a cross-sectional study with a representative sample, composed of 1059 adolescents between 13 and 19 years old, enrolled in primary and secondary public schools of Olinda, Pernambuco, in 2014. Information was obtained through self-administered questionnaires (validated version of YRBS 2007). Cigarette experimentation was defined as smoking at least once in life. Adolescents who smoked at least one day within 30 days prior to the survey were considered current smokers. Most students were female and 16 years old or older. RESULTS: Almost 30% used it in life and about 10% smoked within the 30 days before the survey. Suicidal ideation (PR = 1.51, 95%CI 1.25-1.82), alcohol use (PR = 1.41, 95%CI 1.03-1.92), marijuana (PR = 1.64, 95%CI 1.37-1.96), excessive alcohol consumption (PR = 1.57, 95%CI 1.15-2.16) and sexual experience (PR = 1.78, 95%CI 1.43-2.21) have increased the risk of using cigarettes. Feelings of sadness (PR = 1.70, 95%CI 1.22-2.36), alcohol use (PR=2.40, 95%CI 1.12-5.12), excessive alcohol consumption (PR = 2.5, 95% CI 1.24-5.38), marijuana (PR = 2.31, 95%CI.57-3.39) and cocaine (PR = 1.99, 95%CI.32-3.01) increased the risk of cigarette use within the 30 days before the survey. CONCLUSIONS: Cigarette use among adolescents from Olinda was high, being considered higher than the national prevalence. Possible factors associated with cigarette use were drug use (alcohol, marijuana, and cocaine) and behaviors related to sexual experience, feelings of sadness and suicidal ideation.

Association between cigarette use and adolescents' behavior

ABSTRACT OBJECTIVE To determine the prevalence of cigarette use among adolescents and to identify associated health risk behaviors. METHODS This is a cross-sectional study with a representative sample, composed of 1059 adolescents between 13 and 19 years old, enrolled in primary and secondary public schools of Olinda, Pernambuco, in 2014. Information was obtained through self-administered questionnaires (validated version of YRBS 2007). Cigarette experimentation was defined as smoking at least once in life. Adolescents who smoked at least one day within 30 days prior to the survey were considered current smokers. Most students were female and 16 years old or older. RESULTS Almost 30% used it in life and about 10% smoked within the 30 days before the survey. Suicidal ideation (PR = 1.51, 95%CI 1.25-1.82), alcohol use (PR = 1.41, 95%CI 1.03-1.92), marijuana (PR = 1.64, 95%CI 1.37-1.96), excessive alcohol consumption (PR = 1.57, 95%CI 1.15-2.16) and sexual experience (PR = 1.78, 95%CI 1.43-2.21) have increased the risk of using cigarettes. Feelings of sadness (PR = 1.70, 95%CI 1.22-2.36), alcohol use (PR=2.40, 95%CI 1.12-5.12), excessive alcohol consumption (PR = 2.5, 95% CI 1.24-5.38), marijuana (PR = 2.31, 95%CI.57-3.39) and cocaine (PR = 1.99, 95%CI.32-3.01) increased the risk of cigarette use within the 30 days before the survey. CONCLUSIONS Cigarette use among adolescents from Olinda was high, being considered higher than the national prevalence. Possible factors associated with cigarette use were drug use (alcohol, marijuana, and cocaine) and behaviors related to sexual experience, feelings of sadness and suicidal ideation.

Negative self-perceived health associated with school violence in adolescents. / Autopercepção negativa de saúde associada à violência escolar em adolescentes.

OBJECTIVE: To verify the association between negative self-perception of health and school violence in adolescent students of the Municipality of Olinda (PE), Brazil. METHODS: This is a cross-sectional, analytical and school-based study with a sample consisting of 2,614 adolescents selected through a strategy of random sampling in conglomerates. The information was obtained through the questionnaire "Youth Risk Behavior Survey" from which the issues of violence and self-perceived health were retrieved. Data were tabulated by Epi-data version 3.1 program and transcribed for SPSS version 22. The Chi-square test and the stepwise binary logistic regression model were used for data analysis. RESULTS: We observed that 26.7% of adolescents had a negative self-perception of health, and this was greater among girls. Concerning school violence, negative self-perception was associated with feelings of sadness, suicidal thoughts, bullying at school, robbery at school and safety at school. Gender and age were also associated (p < 0.05). CONCLUSION: We reinforce the need for culture and peace actions in adolescence, involving the school environment to reflect on poor health assessed by adolescents and reduce the rate of violence.

O objetivo deste artigo é verificar a associação entre autopercepção negativa em saúde e violência escolar em adolescentes estudantes do Município de Olinda - PE. Estudo transversal, analítico e de base escolar com amostra constituída por 2.614 adolescentes, selecionados por meio de uma estratégia de amostragem aleatória em conglomerados. As informações foram obtidas através do questionário "Youth Risk Behavior Survey" de onde foram retiradas as questões de violência bem como da autopercepção de saúde. Os dados foram tabulados pelo programa Epi-data versão 3.1 e transcrito para o SPSS versão 22. Utilizou-se os teste do Qui-quadrado e o modelo de regressão logística binária stepwise para análise dos dados. Observou-se que 26,7% dos adolescentes tinham uma autopercepção negativa em saúde, sendo maior entre as moças. Em relação à violência escolar, a autopercepção negativa esteve associada ao sentimento de tristeza, pensamento suicida, bullying na escola, roubado na escola e segurança na escola. Sexo e idade também se mantiveram associadas (p < 0.05). Reforça-se a necessidade de ações de cultura e paz na adolescência, envolvendo o ambiente escolar, a fim de refletir na analise de saúde pobre dos adolescentes reduzindo também o índice de violência.

Autopercepção negativa de saúde associada à violência escolar em adolescentes / Negative self-perceived health associated with school violence in adolescents

Resumo O objetivo deste artigo é verificar a associação entre autopercepção negativa em saúde e violência escolar em adolescentes estudantes do Município de Olinda - PE. Estudo transversal, analítico e de base escolar com amostra constituída por 2.614 adolescentes, selecionados por meio de uma estratégia de amostragem aleatória em conglomerados. As informações foram obtidas através do questionário "Youth Risk Behavior Survey" de onde foram retiradas as questões de violência bem como da autopercepção de saúde. Os dados foram tabulados pelo programa Epi-data versão 3.1 e transcrito para o SPSS versão 22. Utilizou-se os teste do Qui-quadrado e o modelo de regressão logística binária stepwise para análise dos dados. Observou-se que 26,7% dos adolescentes tinham uma autopercepção negativa em saúde, sendo maior entre as moças. Em relação à violência escolar, a autopercepção negativa esteve associada ao sentimento de tristeza, pensamento suicida, bullying na escola, roubado na escola e segurança na escola. Sexo e idade também se mantiveram associadas (p < 0.05). Reforça-se a necessidade de ações de cultura e paz na adolescência, envolvendo o ambiente escolar, a fim de refletir na analise de saúde pobre dos adolescentes reduzindo também o índice de violência.

Abstract Objective To verify the association between negative self-perception of health and school violence in adolescent students of the Municipality of Olinda (PE), Brazil. Methods This is a cross-sectional, analytical and school-based study with a sample consisting of 2,614 adolescents selected through a strategy of random sampling in conglomerates. The information was obtained through the questionnaire "Youth Risk Behavior Survey" from which the issues of violence and self-perceived health were retrieved. Data were tabulated by Epi-data version 3.1 program and transcribed for SPSS version 22. The Chi-square test and the stepwise binary logistic regression model were used for data analysis. Results We observed that 26.7% of adolescents had a negative self-perception of health, and this was greater among girls. Concerning school violence, negative self-perception was associated with feelings of sadness, suicidal thoughts, bullying at school, robbery at school and safety at school. Gender and age were also associated (p < 0.05). Conclusion We reinforce the need for culture and peace actions in adolescence, involving the school environment to reflect on poor health assessed by adolescents and reduce the rate of violence.

Prevalência e fatores associados à autopercepção negativa em saúde de adolescentes: um estudo piloto / Prevalence and factors associated with negative self-perception in adolescents' health: a pilot study

O objetivo desse estudo é identificar a prevalência de autopercepção em saúde negativa dos adolescentes de uma escola da cidade de Olinda ­ PE, assim como apresentar os fatores associados ao nível socioeconômico e aos hábitos comportamentais. Trata-se de um estudo Piloto, do tipo transversal, analítico e de base escolar, realizado em fevereiro de 2016. Foram selecionados para o estudo, adolescentes, devidamente matriculados, com idade entre 12 e 19 anos. Os dados foram coletados por meio do questionário adaptado, traduzido para o português do Brasil "Youth Risk Behavior Survey" versão 2013. A variável dependente para esse estudo foi a autopercepção negativa em saúde, que foi coletada a partir de uma pergunta: "De maneira geral, como você classifica sua saúde?" com opção de resposta tipo Likert com 5 pontos. Os adolescentes que optaram pela resposta "Nada saudável" e "Não muito saudável" foram alocados para o grupo de autopercepção negativa em saúde. No geral, 202 adolescentes fizeram parte da amostra, sendo 61,5% eram do sexo feminino. A prevalência de autopercepção negativa em saúde foi de 27,6% e os fatores associados foram: sexo (p<0,000); sentir-se triste nos últimos 30 dias (p<0,003); pensar em se suicidar (p<0,002) e percepção inadequada do seu peso corporal (p<0,003). Avaliar o estado de saúde e os fatores interligados a uma autopercepção negativa em adolescentes é uma importante ferramenta para diversas tomadas de decisões, especialmente, para intervir a nível da comunidade com o objetivo de contornar os comportamentos de riscos com finalidade de apresentar melhores níveis de saúde para essa população.

The purpose of this study is to identify the prevalence of negative self-perceived health in adolescents at a school in the city of Olinda, in the state of Pernambuco, as well as presenting the factors associated with socioeconomic level and behavioral habits. This is a cross-sectional, analytical and school-based pilot study developed in February 2016. Adolescents duly enrolled at school, aged between 14 and 19 years, were selected for this study. Data were collected using a questionnaire adapted from the Youth Risk Behavior Survey, version 2013, translated into Brazilian Portuguese. The dependent variable for this study was the negative self-perception of health, which was collected from the following question: "Overall, how do you rate your health?" with a Likert-type response option with 5 points in a scale. Adolescents who chose "Not healthy" and "Not very healthy" were placed into the negative self-perceived health group. Overall, a total of 202 adolescents were part of the sample, with 61.5% being girls. The prevalence of negative self-perception in health was 27.6% and the associated factors were: gender (p <0.000); feeling sad in the past 30 days (p <0.003); thinking about suicide (p <0.002); and inadequate perception of their body weight (p <0.003). Assessing the health status and factors associated with negative self-perception in adolescents is an important tool for many decision-making matters, especially for intervening at a community level with the aim of circumventing the risk behaviors to present better health levels for this population.

Predictors of dental anxiety in Brazilian 5-7years old children.

OBJECTIVES: The aim of this study was to analyze the predictors of dental anxiety in 5 to 7-year-old children in a two years follow-up. MATERIALS AND METHODS: This is a longitudinal study conducted with 784 children with 5 to 7years old. A face-to-face interview was conducted with the parents. The Dental Anxiety Question (DAQ) answers were categorized as presence or absence of dental anxiety. The possible predictor factors analyzed were: related to the children (age, sex, parentage, childbirth, physical activity, body satisfaction, psychological well-being, physical well-being, dentist visit); and related to the parents or guardians (excessive alcohol consumption, smoke, family income, number of children). Forward stepwise logistic binary regression was performed for the multivariate analysis. The analysis was controlled by gender. RESULTS: The prevalence of dental anxiety was 17.4%. Children in lower family income had 2.3 (95% CI: 1.3-4.0) greater chance to report high dental anxiety in comparison to children in higher family income. Similarly, children's parents who reported lower psychological well-being had 1.5 (95% CI: 1.0-3.0) greater chance to report high dental anxiety in comparison to children's parents with higher psychological well-being. CONCLUSIONS: The prevalence of dental anxiety was high, and the family income and psychological well-being were inversely associated to dental anxiety in children. CLINICAL RELEVANCE: Knowing the dental anxiety predictors could help the pediatric dentist to analyze and understand who is more susceptible to develop dental anxiety. An adequate approach, a trust relationship could be built, improving the oral health conditions and reducing the need of treatment in children.

Are smoking and passive smoking related with heart rate variability in male adolescents?

OBJECTIVE: To analyze the relation between smoking and passive smoking with heart rate variability parameters in male adolescents. METHODS: The sample consisted of 1,152 males, aged 14 and 19 years. Data related to smoking and passive smoking were collected using a questionnaire. RR intervals were obtained by a heart rate monitor, on supine position, for 10 minutes. After collecting the RR intervals, time (standard deviation of all RR intervals, root mean square of the squared differences between adjacent normal RR intervals and the percentage of adjacent intervals over 50ms) and frequency domains (low and high frequency and sympathovagal balance) parameters of heart rate variability were obtained. RESULTS: No significant differences between smoker and nonsmoker adolescents were observed in heart rate variability parameters (p>0.05). Similarly, heart rate variability parameters did not show significant difference between exposed and not exposed to passive smoking (p>0.05). CONCLUSION: Cigarette smoking and passive smoking are not related to heart rate variability in adolescence.

Are smoking and passive smoking related with heart rate variability in male adolescents? / O tabagismo e o fumo passivo estão relacionados com a variabilidade da frequência cardíaca em adolescentes homens?

Objective To analyze the relation between smoking and passive smoking with heart rate variability parameters in male adolescents. Methods The sample consisted of 1,152 males, aged 14 and 19 years. Data related to smoking and passive smoking were collected using a questionnaire. RR intervals were obtained by a heart rate monitor, on supine position, for 10 minutes. After collecting the RR intervals, time (standard deviation of all RR intervals, root mean square of the squared differences between adjacent normal RR intervals and the percentage of adjacent intervals over 50ms) and frequency domains (low and high frequency and sympathovagal balance) parameters of heart rate variability were obtained. Results No significant differences between smoker and nonsmoker adolescents were observed in heart rate variability parameters (p>0.05). Similarly, heart rate variability parameters did not show significant difference between exposed and not exposed to passive smoking (p>0.05). Conclusion Cigarette smoking and passive smoking are not related to heart rate variability in adolescence. .

Objetivo Analisar a relação entre o tabagismo e o fumo passivo com os parâmetros da variabilidade da frequência cardíaca em adolescentes do sexo masculino. Métodos A amostra foi composta por 1.152 adolescentes, do sexo masculino, com idade entre 14 e 19 anos. Dados referentes ao hábito de fumar e ao fumo passivo foram coletados por questionário. Os intervalos RR foram obtidos por meio de um cardio frequencímetro na posição supina durante 10 minutos. Após a coleta dos intervalos RR, os parâmetros da variabilidade da frequência cardíaca do domínio do tempo (desvio padrão de todos os intervalos RR, raiz quadrada da média do quadrado das diferenças entre os intervalos RR normais adjacentes e percentagem dos intervalos adjacentes com mais de 50ms) e da frequência (bandas de baixa e alta frequência e balanço simpatovagal) foram obtidos. Resultados Os parâmetros da variabilidade da frequência cardíaca entre adolescentes tabagistas e não tabagistas não apresentaram diferenças significantes (p>0,05). Da mesma forma, a comparação entre expostos e não expostos ao fumo passivo em relação aos parâmetros da variabilidade da frequência cardíaca também não apresentou diferenças significantes (p>0,05). Conclusão O tabagismo e o fumo passivo não estão relacionados com a variabilidade da frequência cardíaca na adolescência. .

Aplicabilidade e longevidade do Tratamento Restaurador Atraumático em molares decíduos / Applicability and longevity of the Atraumatic Restorative Treatment in primary molars

Os trabalhos que cmpôem esta tese foram desenvolvidos no contexto de atividades de colaboração acadêmica entre o Grupo de Pesquisa em Odontopediatria da Faculdade de Odontologia de Pernambuco - Universidade de Pernambuco e a ACTA - Academisch Centrum Tandheellkunde Amsterdam (Academic Centre for Dentistry in Amsterdam), Holanda. Este estudo teve como objetivo investigar a aplicabilidade do Tratamento Restaurador Atraumático (ART), considerando sua indicação e a longevidade de restaurações ART realizadas em molares decíduos em crianças de 5 a 9 anos de idade...

The studies that comprise make up this thesis were developed in the context of collaborative activies between the academic research group in Pediatric Dentistry, Faculty of Dentistry of Pernambuo - Universidade de Pernambuco and ACTA - Tandheelkunde Academisch Centrum Amsterdam (Academic Center for Dentistry in Amsterdam), Netherlands. This study is aimed at investigating the applicability of the Atraumatic Restorative Treatment (ART), considering indications and longevity of ART restorations in primary molars performed in children aged 5 to 9 years old...

O adolescente como população-alvo de estudos científicos / The adolescent as target population in scientific studies

O adolescente tem sido objeto de estudo em virtude de mudanças comportamentais facilmente obsewáveis no meio social. A participação crescente de crianças e jovens em pesquisas científicas nos faz repensar questões bioéticase rever princípios jurídicos. Este trabalho promove uma revisão bibliográfica no período de 1996 a 2005 acerca do tema. O estudo contemplando adolescentes envolve procedimentos especiais, pois, além da necessidade de consentimento dos responsáveis pelos menores, deve-se esclarecer e consultar os jovens sobre sua participação em pesquisas científicas, numa abordagem educativa, respeitando os princípios fundamentais da ética