Introdução: O sono é um importante componente no processo de desenvolvimento biológico e mental das crianças e dos adolescentes, considerado fonte de revitalização das funções orgânicas. Objetivo: Analisar a associação entre o tipo e tempo de exposição à tela, a percepção da qualidade de sono e os episódios de parassonia em adolescentes. Métodos: Estudo transversal que incorpora um levantamento epidemiológico de base escolar com amostra representativa (n = 481) de estudantes (14 a 19 anos) do ensino médio da rede pública estadual do município de Caruaru, PE. Para a análise do sono e do estilo de vida, foi utilizada a versão traduzida e adaptada do Global School-Based Student Health Survey (GSHS). Recorreu-se à regressão logística binária para análise da associação entre as variáveis, considerando-se como desfecho a percepção negativa da qualidade de sono. Resultados: A prevalência de percepção negativa da qualidade de sono foi de 58% (IC 95% 53,3). Entre os comportamentos analisados, verificou-se que dormir oito horas ou menos por dia e assistir mais de duas horas de TV por dia aumentam, respectivamente, 2,69 (IC 95% 1,61-4,71) e 1,71 (IC 95% 1,08-2,73) as chances de relatar percepção negativa de sono. O tempo excessivo de tela, sobretudo diante da TV, esteve associado à maior quantidade de episódios de parassonia. Conclusão: A qualidade do sono está relacionada tanto com a quantidade de horas de sono, quanto com o tempo de exposição à TV. Além disso, uma quantidade maior de episódios de parassonia ocorreu entre os adolescentes que assistem mais de três horas de TV por dia.Descritores: sono; televisão/utilização; estilo de vida sedentário. . Among the behaviors analyzed, it was found that sleeping eight hours or less per day and watching television more than two hours per day increased, respectively,) and (IC 95%, 53,3 . Relativamente, às mudanças comportamentais, estudos tem demostrado associação entre tempo e tipo de exposição à tela e percepção negativa da qualidade de sono [6][7][8][9][10][11][12] . Neste contexto, recentemente, uma revisão sistemática, reuniu 67 estudos com delineamentos transversais e longitudinais 6 . Foi observado em 90% dos estudos a existência de associação significativa entre exposição ao tempo de tela e sono. O mecanismo subjacente que parece explicar estas associações aponta para a possibilidade da luz brilhante da tela suprimir a produção de melatonina, alterar aspectos do ciclo circadiano, aumentar a excitação mental e fisiológica 13 . Em adição evidências indicam que a exposição excessiva à tela causa menor tempo de duração 7-10 e maior distúrbio de sono 14 , e que consequentemente uma percepção negativa da qualidade do sono 4,11 . No entanto, os diferentes estudos investigaram unicamente a associação com a percepção da qualidade de sono, não sendo investigada a associação com as parassonias, conhecidas pela presença de manifestações motoras, autonômicas e psíquicas, que podem ocorrer no período de sono e são classificadas como distúrbios 15 . Neste contexto, até o momento, pa...

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Objective: To analyze the association of exercises and physical activity with the perception of sleep quality by adolescents.Methods: This is a cross-sectional epidemiological survey with statewide coverage, whose sample was composed of 6,261 adolescents (14-19 years old) who were selected by random sampling of conglomerates. The Global School-Based Student Health Survey questionnaire was used for data collection. The chi-square test and the binary logistic regression were applied for data analyses. Results: In the sample, 29% of adolescents did not exercise and were not classified as physically active. Adolescents who did not exercise were more likely to present a negative perception of sleep quality (OR 1.13, 95%CI 1.04-1.28, p=0.043). No association between the level of physical activity and the perception of sleep quality was found (OR 1.01, 95%CI 0.89-1.14, p=0.868). Those who practiced exercises only had less chance of perceiving sleep quality as poor (OR 0.82, 95%CI 0.71-0.95). However, those who practiced exercise and had a physically active life had less chances of having a negative perception of their sleep (OR 0.79, 95%CI 0.68-0.93). Conclusions: Practicing physical activity alone was not enough to increase the chances of positive sleep quality perception. Only physical exercise had a positive association with sleep quality perception.

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.

Behavioral issues may have different effects on health self-perception when comparing boys with girls. Negative health self-perception was associated with nutritional status in girls and a lower level of physical activity in boys, and the practice of physical activity in the free time was considered a protective factor against a negative health self-perception for adolescents of both genders.

Introduction. The increase in sedentary screen time can negatively affect the quality of sleep, impacting the performance of daily activities. Objective. To analyze the association between sedentary screen time and sleep quality, regardless of the symptoms of anxiety in adolescents of both genders. Method. Cross-sectional study integrating school-based epidemiological research with a representative sample (n = 666) of high school students (14 to 19 years old) in public schools in the municipality of Caruaru-PE. The translated versions into Portuguese of the Pittsburgh Sleep Quality Index (PSQI) and the Hospital Anxiety and Depression Scale (HAD) were applied to analyze sleep quality and anxiety, respectively. Binary logistic regression was used to analyze the association, considering sleep quality as an outcome. Results. There was a positive, statistically significant (p  #abr#  .001) correlation between sleep quality and symptoms of anxiety (r = .393). A significant association regarding the association between screen time and sleep quality was noted only in those adolescents classified as being possible or probable anxiety cases and only in exposure to the computer (OR = 2.337; 95% CI [1.01, 5.43]) and video games (OR = 8.083; 95% CI [2.0, 32.8]) after adjusting for gender, age, and school shift. Discussion and conclusion. Increased interaction with the screen and higher levels of anxiety can be more harmful to sleep in adolescents. Exposure to screen time, specifically those which have a greater interaction such as video games and computers, can have a negative impact on sleep quality, but only in adolescents with a higher risk of anxiety.

Introduction. Adolescents who practice sports have better mental health indicators. Objective. To analyze the association between different types of physical activity (systematized exercise, individual, and collective sports), mental health, and suicidal ideation in adolescents. Method. We conducted a cross-sectional study with 666 Brazilian adolescents (14-19 y.o.) attending high schools and selected using random cluster sampling. The mental health indicators analyzed were evaluated through the Self Reporting Questionnaire and the Strengths and Difficulties Questionnaire, including suicidal ideation. We also obtained physical activity information through questionnaires. Results. There was a higher prevalence related to mental disorders (54.2% vs. 32.5%), difficulties related to mental health (79.6% vs. 48.4%), and suicidal thoughts (22.9% vs. 11.4%) in girls than in boys (p () .001 for all). The boys engaged in more team sports (41.0 vs. 23.8), whereas girls performed more exercise (45.1 vs. 26.5; p () .001). Discussion and conclusion. The practice of team sports helps develop the collective spirit, stimulates social interaction, and develops reasoning and emotional intelligence. Boys who play team sports have fewer symptoms of common mental disorders, lower mental health problems, and less suicidal ideation than physically inactive boys.

-Aim: to analyze the pattern and trends of use of screen-based devices and associated factors from two surveys conducted on public high school students in Caruaru-PE. Methods: two representative school-based crosssectional surveys conducted in 2007 (n=600) and 2012 (n=715) on high school students (15-20 years old). The time of exposure to television (TV) and computer/videogames PC/VG was obtained through a validated questionnaire, and ≥3hours/day was considered as being excessive exposure. The independent variables were socioeconomic status, school related, and physical activity. Crude and adjusted binary logistic regression were employed to examine the factors associated with screen time. The statistical significance was set at p<0.05. Results: There was a significant reduction in TV time on weekdays and total weekly, but no change in the prevalence of excessive exposure. The proportion of exposure to PC/VG of ≥3 hours/day increased 182.5% on weekdays and 69.5% on weekends (p <0.05). In 2007, being physically active was the only protection factor for excessive exposure to total screen time. In 2012, girls presented less chance of excessive exposure to all screen-based devices and total screen time. Other protective factors were studying at night and being physically active (PC/VG time), while residing in an urban area 41)] and having higher family income [OR 1.55(1.04-2.30)] were risk factors. Conclusion: Significant and important changes in the time trends and pattern of use PC/VG were observed during the interval of 5 years. This rapid increase could be associated with increased family income and improved access to these devices, driven by technological developments.