Suicide risk among undergraduate students in Brazil in the periods before and during the COVID-19 pandemic: results of the SABES-Grad national survey.

BACKGROUND: Undergraduate students present high rates of psychological distress, including suicide risk. Due to the coronavirus disease 2019 (COVID-19) pandemic, this scenario may have been aggravated. Thus, the objective of the current study was to evaluate changes in the suicide risk rate from the period before to during the COVID-19 pandemic, as well as the factors associated with this outcome among Brazilian undergraduate students. METHODS: This was a nationwide survey carried out in Brazil with a cross-sectional design, including two data collection periods: a single-center in-person collection in 2019 and another multicenter online collection in 2020/2021. Data were collected using self-administered instruments. The outcome was a high risk of suicide, measured through the Mini International Neuropsychiatric Interview. Analyses were carried out on data from two periods, i.e. before and during the pandemic (bivariate analysis and interaction tests), and a model of associated factors (multivariate analysis using Poisson regression) was developed including all participating universities distributed in the five regions of Brazil. RESULTS: In total, 6716 Brazilian undergraduate students participated (996 in 2019 and 5720 in 2020/2021). The prevalence of a high suicide risk rose from 11.3% to 17.0%, especially among women and poorer individuals. The prevalence of a high risk of suicide among Brazilian undergraduates was 19.6% and was associated with several socioeconomic, academic, pandemic, and mental health factors. CONCLUSIONS: The prevalence of a high suicide risk increased from prepandemic to during the pandemic, appearing to be largely influenced by social determinants, in conjunction with the implications of the COVID-19 pandemic.

Adherence to social distancing measures in southern Brazil, 2020/2021: a cross-sectional study.

OBJECTIVE: We aimed to analyze the frequency of adherence to social distancing and individual protection measures of adult and older populations in two cities in southern Brazil and to characterize the sociodemographic aspects of these individuals. METHODS: This cross-sectional, population-based study was conducted in the cities of Rio Grande, RS, and Criciúma, SC, Brazil. The outcome measure was the frequency of adherence to social distancing measures. Fisher's exact test (5% significance) was used to calculate the differences in prevalence according to exposure variables. RESULTS: Among the 2,170 participants over the age of 18, the prevalence of adherence to social distancing was 18.5%. Adherence was significantly higher among women; older adults; single, divorced, or widowed people with a low educational level; people of lower socioeconomic status; and people affected by multiple chronic diseases. CONCLUSION: Approximately one in five respondents adhered to measures of social distancing, and adherence was more prevalent among the risk groups.

Factors associated with sleep quality in university students. / Fatores associados à qualidade do sono de estudantes universitários.

To investigate factors associated with poor sleep quality. A cross-sectional study was conducted in 2019 with random sampling. Information on sleep was obtained using the Mini Sleep Questionnaire (MSQ). Independent variables included sociodemographic, behavioural, academic and psychological health characteristics. Adjusted analyzes were performed using Poisson regression. A total of 996 undergraduate students participated in the study. The poor sleep quality affected 23.1% of the sample (95%CI 20.5-25.9), ranging from 13.4% for those with little concern about violence in the neighbourhood to 36.5% for those with less social support. In the adjusted analysis, female sex [PR] 1.81; (95%CI 1.33-2.45), concern about violence in the neighbourhood [PR] 2.21; (95%CI 1.48-3.28), discrimination at university [PR] 1.42; (95%CI 1.08-1.86) and food insecurity [PR] 1.45; (95%CI 1.11-1.89) were associated with the presence of poor sleep quality, as well as having less social support and income and suffering psychological distress. The results highlight socioeconomic and mental health factors that affect sleep quality and demonstrate the need for reflection and interventions capable of minimizing this problem.

Investigar fatores associados a pior qualidade do sono. Estudo transversal realizado em 2019, com amostragem aleatória sistemática. Informações sobre sono foram obtidas através do Mini Sleep Questionaire (MSQ). Variáveis independentes incluíram características sociodemográficas, comportamentais, acadêmicas e de saúde psicológica. Análises ajustadas foram feitas com regressão de Poisson. Participaram 996 estudantes de graduação. A pior qualidade de sono atingiu 23,1% da amostra (IC95% 20,5-25,9), oscilando de 13,4% para os com pouca preocupação com violência no bairro a 36,5% para aqueles com menor suporte social. Na análise ajustada, sexo feminino [RP] 1,81; (IC95% 1,33-2,45), preocupação com violência no bairro [RP] 2,21; (IC95% 1,48-3,28), discriminação na universidade [RP] 1,42; (IC95% 1,08-1,86) e insegurança alimentar [RP] 1,45; (IC95% 1,11-1,89) associaram-se a presença de pior qualidade do sono, assim como ter menor suporte social e renda e apresentar sofrimento psicológico. Os resultados destacam fatores socioeconômicos e de saúde mental que interferem na qualidade do sono e demonstram a necessidade de reflexão e proposição de intervenções capazes de minimizar este problema.

Internet addiction and depressive symptoms: a dose-response effect mediated by levels of physical activity.

INTRODUCTION: There are several negative impacts on the physical and mental health of people presenting internet addiction, including development of mood disorders, such as depression. OBJECTIVE: The aim of the study was to evaluate the association between internet addiction and depressive symptoms, as well as to test the mediating role of physical activity in this association. METHODS: A cross-sectional study was conducted with undergraduate students from three universities (one private and two public institutions) in southern Brazil. Depressive symptoms were measured with the Beck Depression Inventory (BDI-21), internet addiction with the Internet Addiction Test (IAT-20), and physical activity with the International Physical Activity Questionnaire (IPAQ - short version). Poisson regression and the Karlson-Holm-Breen mediation method were used for statistical analyses. RESULTS: We observed a dose-response relationship between internet addiction and depressive symptoms. Levels of physical activity mediated the association between moderate internet addiction and depressive symptoms, accounting for 10.7% of the effect observed. CONCLUSION: Internet addiction can be detrimental to individuals' health, contributing to development of depressive symptoms. Along with psychological and pharmacological therapies, prescription of physical activities is recommended.

A Study on the Health and Wellness of Undergraduate Students (SABES-Grad): methodological aspects of a nationwide multicenter and multilevel study overlapping with the Covid-19 pandemic.

INTRODUCTION: The academic environment can negatively impact the mental health of undergraduate students, particularly in the context of the coronavirus disease 2019 (Covid-19) pandemic. This study aimed to describe the methodological and operational aspects of a study of the health and well-being of undergraduate students: the Study on the Health and Wellness of Undergraduate Students (SABES-Grad) project. METHOD: This was a nationwide cross-sectional study divided across two data collection strategies: a single-center, on-site data collection carried out in 2019 at the Universidade Federal do Rio Grande (FURG) and a multicenter, multilevel, online data collection carried out in 2020/2021 at FURG, the Universidade Federal Fluminense (UFF), the Universidade Federal do Mato Grosso (UFMT), the Universidade do Estado do Amazonas (UEA), and the Universidade Federal Rural de Pernambuco (UFRPE). The main outcomes of interest were depressive symptoms, generalized anxiety, and suicide risk. RESULTS: A total of 996 students participated in the 2019 data collection (63.8% female; median age of 22 years; response rate of 85.2%) and 5,720 students participated in the 2020/2021 collection (66.7% female; median age of 22 years; response rate of 84.3%). Significant variations in socioeconomic and demographic profiles were observed between the different universities. Approximately one-third of the sample had been tested for Covid-19 in 2020/2021, 7.8% of whom had tested positive. CONCLUSION: The SABES-Grad project was the result of collaborative work between several actors from public universities in Brazil. Several aspects of the preparation and execution of this research are discussed in terms of its originality and relevance. Barriers and limitations and strategies adopted to overcome them are also presented.

[The experience of forced sexual intercourse among undergraduate students: associated factors and possible consequences]. / Experiência de relação sexual forçada entre estudantes de graduação: fatores associados e possíveis consequências.

The scope of this article is to investigate the prevalence of the experience of forced sexual intercourse on life and its possible consequences on mental and sexual health among undergraduate students at a public university in Brazil. It is a quantitative cross-sectional study with 996 undergraduate students. Sampling was carried out systematically by single-stage clusters. Descriptive, bivariate and multivariate analyses were performed using the Poisson Regression model, and the etiological fractions of the consequences of forced sexual intercourse were calculated. The lifetime prevalence of forced sexual intercourse was 12.1%. Female sex, non-heterosexual sexual orientation, first sexual intercourse before the age of 14, child food insecurity and domestic violence were associated with a higher prevalence of the outcome. Individuals who experienced forced sexual intercourse were more likely to be diagnosed with sexually transmitted infections and to represent a potential suicide risk. The study revealed the problems of sexual violence in the university context.

O objetivo deste artigo é investigar a prevalência de relação sexual forçada na vida e suas possíveis consequências na saúde mental e sexual em acadêmicos de cursos de graduação de uma universidade pública no Brasil. Estudo transversal quantitativo com 996 estudantes de graduação. A amostragem realizada de forma sistemática por conglomerados. Foi usado o modelo de Regressão de Poisson, e foram calculadas as frações etiológicas das consequências de relação sexual forçada. A prevalência de relação sexual forçada ao longo da vida foi de 12,1%. Sexo feminino, orientação sexual não heterossexual, primeira relação sexual antes de 14 anos de idade, insegurança alimentar e violência no contexto doméstico na infância foram associados à maior prevalência do desfecho. Indivíduos que sofreram relação sexual forçada foram mais propensos a apresentar diagnóstico de infecções sexualmente transmissíveis e de ter risco de suicídio. O estudo evidenciou a problemática da violência sexual no contexto universitário.

An invisible villain: high perceived stress, its associated factors, and possible consequences in a population-based survey in southern Brazil.

INTRODUCTION: Much of the evidence on the relationship between stress, lifestyle, and other physical and mental health outcomes comes from studies conducted in high-income countries. There is therefore a need for research among populations in low and middle-income settings. OBJECTIVES: To measure stress levels and identify factors associated with a high stress level and its consequences for health. METHODS: This was a population-based cross-sectional study carried out in 2016 with adults aged 18 years or older in a municipality in southern Brazil. A two-stage sampling strategy based on census tracts was used. Stress levels were measured with the Perceived Stress Scale (PSS-14) and classified into quartiles. The impact of the highest stress levelon each outcome was assessed with etiologic fractions (EF). RESULTS: The most stressed groups were: females (PR = 1.51, 95%CI 1.25-1.81), younger people (PR = 1.76, 95%CI 1.26-2.46), middle-aged individuals (PR = 1.60, 95%CI 1.17-2.19), those with lower schooling (PR = 1.56, 95%CI 1.20-2.02), the physically inactive (PR = 1.51, 95%CI 1.20-1.91), people who spent three or more hours watching television per day (PR = 1.29, 95%CI 1.12-1.50), and those with food insecurity (PR = 1.44, 95%CI 1.19-175). Possible consequences of high stress level were regular or poor self-perception of health (EF = 29.6%), poor or very poor sleep quality (EF = 17.3%), lower quality of life (EF = 45.6%), sadness (EF = 24.2%), and depressive symptoms (EF = 35.8%). CONCLUSIONS: Stress plays an important role in several domains of health. Both public policies that target reduction of inequalities and specific stress-management interventions can reduce stress levels in populations, thereby decreasing the burden of other negative physical and mental health outcomes related to stress.

Suicide risk in high school students: who are the most vulnerable groups?

OBJECTIVE: To investigate the prevalence and factors associated with suicide risk among high school students from a federal educational institution in Rio Grande do Sul (IFRS). METHODS: This is a cross-sectional study based on a census of students (n=510) enrolled in IFRS, campus Rio Grande, in the second half of 2019. Data were collected through a self-administered questionnaire. Suicide risk was measured with the instrument Mini-International Neuropsychiatric Interview, and data were analyzed using Poisson regression with robust variance adjustment. RESULTS: The prevalence of high suicide risk was 17.3% (95% confidence interval - 95%CI 14.0-20.0), with the following independent associated factors: female gender, higher socioeconomic status, alcohol consumption, less social support, attempt to lose weight, self-harm behavior, and increased risk of depression, anxiety, and stress. CONCLUSIONS: One in six students showed a high suicide risk. The identification of factors associated with the outcome is useful for detecting the most severe cases and referring them to specialized care.

Excessive use of social media by high school students in southern Brazil.

OBJECTIVE: To assess the prevalence of excessive use of social media and associated factors, as well as possible health consequences in high school students in southern Brazil. METHODS: This is a population-based cross-sectional study, conducted with high school students in the city of Rio Grande, RS. All students who were attending high school at the Federal Institute of Rio Grande do Sul, campus Rio Grande, were eligible for this research in the second semester of 2019. In total, 513 students participated in the study. The dependent variable was excessive use of social media, defined as more than five hours per day. Descriptive and bivariate analyses were carried out and the Poisson regression was used to verify associations, with robust adjustment of variance. RESULTS: The prevalence of students who reported excessive use of social media was 35.9%. The groups that were most susceptible to excessive use of social media had the following profile: female, black/brown skin, aged between 18 and 20 years old, attending the first year of high school. Excessive use of social media was shown to be associated with smoking, risk of depression, anxiety and stress, high risk of suicide and drug use. CONCLUSIONS: More than a third of students used social media excessively. This behavior was associated with negative health outcomes.

Fear of Covid-19 and health-related outcomes: results from two Brazilian population-based studies.

Fear is a reaction that can influence multiple aspects of health and life. During the Covid-19 pandemic, there have been serious pathophysiological, social, behavioral and mental consequences that can be related to fear. This study aimed to assess the fear of Covid-19 and its association with sociodemographic, behavioral and health variables. Data were gathered from two cross-sectional population-based studies conducted in 2020 with adults from two cities from Southern Brazil. The Fear of Covid-19 scale was used to evaluate fear of Covid. Exposure variables were socioeconomic, demographic, health and pandemic-related factors. Adjusted Poisson regression was performed to assess the association between fear of Covid-19 and the exposure variables. A total of 2,152 subjects were assessed. Higher fear of Covid-19 was found among women and in individuals with symptoms of Covid-19. Living alone, being richer, and testing positive for Covid-19 were associated with lower prevalence of fear. Higher prevalence of fear of Covid-19 was related to worse sleep quality, worse health perception, sadness, higher stress, depressive symptoms, and suicidal ideation. There was a linear association between fear of Covid-19 and health outcomes. The results provide evidence that fear of Covid-19 seems to be associated with socioeconomic, demographic, health and pandemic-related factors.

Who are the individuals with the worst perceived quality of sleep? A population-based survey in southern Brazil.

This study aimed to investigate the factors associated with poorer sleep quality. It consisted of a population-based cross-sectional study conducted in Southern Brazil with individuals aged 18 years or older. Participants were selected through a two-stage random sampling strategy and data collection was conducted in 2016. The outcome was self-perceived quality of sleep. Questions regarding the number of hours of sleep and the use of medicines to sleep each week were also asked. Demographic, socioeconomic, behavioral and health conditions were collected through questionnaire. The study sample was composed of 1,300 individuals whose mean age was 46.1 years (SD = 17.3). The prevalence of poor sleep quality was 10.7% (95% CI 9.3% to 12.1%). The poorer the quality of sleep was, the higher the prevalence of the use of medicines to sleep (22.3% versus 10.0% in the overall sample; p < 0.001) and the lower the average amount of daily sleep (6.0 h/day versus 7.3 h/day in the overall sample; p < 0.001). Groups with the worst quality of sleep, in the adjusted analyses, were female (p = 0.012), younger (18 to 39 years versus 60 years or more) (p = 0.048), with poorer perceived diet (p < 0.001), most stressed (p < 0.001), with chronic back pain (p = 0.002), with chronic respiratory disease (p = 0.012), with worse quality of life (p = 0.018) and depression (p = 0.034). Concluding, one out of ten individuals reported poor sleep quality. The results suggest that lifestyle changes could improve the quality of sleep.

Prevalence of anxiety, depression and suicidal behaviors among Brazilian undergraduate students: A systematic review and meta-analysis.

BACKGROUND: The university context can be an overwhelming background, being especially harmful to undergraduates' mental health. Considering that several studies have reported on the prevalence of psychological distress among Brazilian undergraduate students, this study aimed to conduct a systematic review and meta-analysis of the prevalence and associated factors of anxiety, depression and suicidal behavior in this population. METHODS: Studies reporting on the prevalence of anxiety, depression and suicidal behavior and its associated factors among Brazilian undergraduate students were systematically searched in scientific electronic databases. Pooled prevalence was calculated using a random-effects meta-analysis. Individual associated factors were summarized, and study characteristics associated with outcome prevalence were tested through meta-regression analysis. RESULTS: Forty-seven articles were included, of which 44 were meta-analyzed (37,486 undergraduates). The pooled prevalence estimates of anxiety, depression and suicidal behavior were 37.75%, 28.51%, and 9.10%, respectively. Meta-regression analysis showed that investigations with probabilistic samples presented a higher prevalence of anxiety and that studies conducted within public institutions and with samples of exclusively medical students presented higher frequencies of depression. LIMITATIONS: Cross-sectional data do not allow the establishment of temporality and causal inference. Furthermore, the high heterogeneity of the included studies may also constitute a weakness of this review. CONCLUSIONS: The prevalence of anxiety, depression and suicidal behavior among Brazilian undergraduates was high. These results have scientific and practical implications, the former regarding the need for the standardization of the methodology of studies and the latter regarding the need for comprehensive mental health care for Brazilian undergraduates.

[Sexual exploitation of homeless children and adolescents living on the streets in Southern Brazil]. / Exploração sexual de crianças e adolescentes em situação de rua no Sul do Brasil.

The scope of this study was to investigate the prevalence of sexual exploitation of homeless children and adolescents living on the streets, as well as characteristics associated with this outcome. In this cross-sectional investigation, carried out in the municipalities of Rio Grande and Porto Alegre-RS, data were collected through interviews, which were conducted by trained interviewers. The Respondent-Driven Sampling (RDS) strategy was adopted and statistical analyses were conducted using Poisson regression with robust adjustment of variance. The sample included 186 children and adolescents between 10 and 17 years of age, of which 8% reported having been subjected to sexual exploitation. Being 16 to 17 years old, having had forced sexual intercourse and not having bonds with school were characteristics independently associated with this outcome. It was observed that the lack of contact with school increased the probability 16-fold of having suffered sexual exploitation, being considered the main risk factor in this study. The proposition is that the inclusion and permanence of homeless children and adolescents living on the streets into schools might significantly reduce the risk of sexual exploitation of this population group.

O objetivo do estudo foi investigar a prevalência de exploração sexual entre crianças e adolescentes em situação de rua e as características associadas a este desfecho. Neste estudo transversal, conduzido nos municípios de Rio Grande e Porto Alegre-RS, os dados foram coletados por meio de entrevistas com os participantes, as quais foram conduzidas por entrevistadores treinados. O método de amostragem foi o Respondent-Driven Sampling (RDS) e as análises estatísticas foram conduzidas por meio da regressão de Poisson com ajuste robusto da variância. A amostra foi composta por 186 crianças e adolescentes com idades entre 10 e 17 anos, das quais 8% relataram ter tido experiência de exploração sexual. Ter idade entre 16 e 17 anos, ter sofrido relação sexual forçada e não ter vínculo escolar foram características independentemente associadas a este desfecho. Foi observada que a falta de vínculo escolar aumentou em 16 vezes a probabilidade de sofrer exploração sexual, sendo o principal fator de risco identificado neste estudo. Sugere-se que a inclusão e permanência das crianças e adolescentes em situação de rua no contexto escolar possa reduzir significativamente o risco de exploração sexual entre esta população.

Factors associated with the perception of fear of COVID-19 in university students.

OBJECTIVE: to analyze the factors associated with the perception of fear of COVID-19 in Brazilian university students. METHODS: this is an online, cross-sectional analytical study conducted at a Brazilian public university with 1,437 undergraduate students between September and November 2020. The Fear of COVID-19 Scale was used to measure the main construct. Data analysis was performed using Mann-Whitney U test, Cohen's r test and multiple linear regression analysis. RESULTS: factors associated with fear of COVID-19 in university students were the variables biological sex, perception of good sleep quality, many days of access to information, not complying with social distancing, reporting sufficient hours of sleep, not having a partner, guidance sexual non-heterosexual, being in the risk group for COVID-19 and tobacco consumption. CONCLUSIONS: the study findings can contribute to the discussion about the weaknesses that the university population is experiencing in this pandemic period.

Income inequality and risk of infection and death by COVID-19 in Brazil. / Desigualdade econômica e risco de infecção e morte por COVID-19 no Brasil.

OBJECTIVE: To assess, through space-time analyses, whether the income inequality of the Federative Units (FUs) in Brazil can be associated with the risk of infection and death by COVID-19. METHODS: This was an ecological study, based on secondary data on incidence and mortality rates for COVID-19. Data were analyzed at the state level, having the Gini coefficient as the main independent variable. Records of twelve days were used, spaced one week each, between April 21th and June 7th, 2020. The weekly variation in the rates was calculated through Prais-Winsten regression, aiming at measuring the evolution of the pandemic in each FU. Spearman's correlation test was used to assess correlation between the rates and their weekly evolution and the independent variables. Lastly, a spatial dependence diagnosis was conducted, and a Spatial Regression lag model was used when applicable. RESULTS: Incidence and mortality rates of COVID-19 increased in all Brazilian FUs, being more pronounced among those with greater economic inequality. Association between Gini coefficient and COVID-19 incidence and mortality rates remained even when demographic and spatial aspects were taken into account. CONCLUSION: Income inequality can play an important role in the impact of COVID-19 on the Brazilian territory, through absolute and contextual effects. Structural policies to reduce inequality are essential to face this and future health crises in Brazil.

OBJETIVO: Avaliar, por meio de análise espaçotemporal, se a desigualdade econômica das Unidades Federativas (UF) do Brasil pode estar associada com o risco de infecção e morte por COVID-19. MÉTODOS: Trata-se de um estudo ecológico, baseado em dados secundários das taxas de incidência e mortalidade para COVID-19. Os dados foram analisados em nível estadual, tendo como principal variável independente o coeficiente de Gini. Foram utilizados os registros de 12 dias, espaçados em uma semana cada, entre 21 de abril e 7 de julho de 2020. A variação semanal das taxas foi calculada pela regressão de Prais-Winsten, com o objetivo de medir a evolução da pandemia em cada UF. O teste de correlação de Spearman foi empregado para avaliar a correlação entre as taxas e suas evoluções semanais e as variáveis independentes. Por fim, realizou-se diagnóstico de dependência espacial dos dados e usou-se o modelo de defasagem da regressão espacial, quando aplicável. RESULTADOS: As taxas de incidência e mortalidade por COVID-19 foram crescentes em todas as UF brasileiras, tendo sido mais acentuada entre aquelas com maior desigualdade econômica. A associação entre coeficiente de Gini e incidência e mortalidade por COVID-19 manteve-se mesmo quando levados em consideração aspectos demográficos e espaciais. CONCLUSÃO: A desigualdade econômica pode exercer papel importante no impacto da COVID-19 em território brasileiro, por meio de efeitos absolutos e contextuais. Políticas estruturais para a redução da desigualdade são fundamentais para o enfrentamento dessa e de futuras crises sanitárias no Brasil.

Suicidal thought in southern Brazil: Who are the most susceptible?

BACKGROUND: Suicide is one of the leading causes of death among adolescents and young adults worldwide. However, risk factors for suicidal thoughts might change across cultures and contexts. We aimed to assess the prevalence and associated factors of suicidal thought among adults in a southern Brazilian city. METHODS: This population-based cross-sectional study used a multistage sampling procedure to evaluated individuals with 18 years or more, living in a southern city in Brazil. We collected suicidal thought using a question from the Patient Health Questionnaire-9. In addition, we collected information on sociodemographic, behavioral, and health variables, through a questionnaire using standardized and validated instruments. We calculated prevalence ratios (PR) using Poisson Regression models with robust adjustment of the variance. RESULTS: We collected information from 1295 individuals, 6.6% were positive for suicidal thought. In multivariate analysis, factors independently associated with suicidal thoughts included: being a woman, poor, reporting current tobacco use, having household food insecurity, having three or more morbidities, being in the upper tertile of the stress scores, having had a depression diagnostic in the last year and sadness. LIMITATIONS: We cannot say that the associations found are causal. Suicidal thoughts were assessed from a single question. CONCLUSION: Suicidal thought is a prevalent condition, most likely associated with being a woman, having worst socioeconomic conditions, a poorer health, a higher stress, using tobacco and having depression and/or sadness.

Academic migration and marijuana use among undergraduate students: evidences from a sample in southern Brazil.

The aim of this study was to measure the prevalence of marijuana use in the last month, its associated factors and its relationship with academic migration among undergraduate students of a federal university in southern Brazil. This was a cross-sectional study and data were collected through self-administered questionnaire. A systematic sampling process was conducted. To data analyses, it was used Poisson regression with robust adjust for variance. Overall, 1,423 students participated. The prevalence of marijuana use in the last month was 16.8% (95%CI 14.8% to 18.8%). Data showed that the greater the distance of the city prior to university entry, the higher the prevalence of marijuana use in the last month. Being male, having less age, being single, not having religious practices, having relatives and friends who have used any illicit drug, and having tobacco use in the last month were also risk factors. We understand that academic migration within the country tends to decrease students contact with family and increase vulnerability to peer influence, which may lead to a higher probability of marijuana use in this sample. The results highlights the importance to develop projects of illicit drug use prevention focused on this risky subgroup.

Fatores associados à qualidade do sono de estudantes universitários / Factors associated with sleep quality in university students

Resumo Investigar fatores associados a pior qualidade do sono. Estudo transversal realizado em 2019, com amostragem aleatória sistemática. Informações sobre sono foram obtidas através do Mini Sleep Questionaire (MSQ). Variáveis independentes incluíram características sociodemográficas, comportamentais, acadêmicas e de saúde psicológica. Análises ajustadas foram feitas com regressão de Poisson. Participaram 996 estudantes de graduação. A pior qualidade de sono atingiu 23,1% da amostra (IC95% 20,5-25,9), oscilando de 13,4% para os com pouca preocupação com violência no bairro a 36,5% para aqueles com menor suporte social. Na análise ajustada, sexo feminino [RP] 1,81; (IC95% 1,33-2,45), preocupação com violência no bairro [RP] 2,21; (IC95% 1,48-3,28), discriminação na universidade [RP] 1,42; (IC95% 1,08-1,86) e insegurança alimentar [RP] 1,45; (IC95% 1,11-1,89) associaram-se a presença de pior qualidade do sono, assim como ter menor suporte social e renda e apresentar sofrimento psicológico. Os resultados destacam fatores socioeconômicos e de saúde mental que interferem na qualidade do sono e demonstram a necessidade de reflexão e proposição de intervenções capazes de minimizar este problema.

Abstract To investigate factors associated with poor sleep quality. A cross-sectional study was conducted in 2019 with random sampling. Information on sleep was obtained using the Mini Sleep Questionnaire (MSQ). Independent variables included sociodemographic, behavioural, academic and psychological health characteristics. Adjusted analyzes were performed using Poisson regression. A total of 996 undergraduate students participated in the study. The poor sleep quality affected 23.1% of the sample (95%CI 20.5-25.9), ranging from 13.4% for those with little concern about violence in the neighbourhood to 36.5% for those with less social support. In the adjusted analysis, female sex [PR] 1.81; (95%CI 1.33-2.45), concern about violence in the neighbourhood [PR] 2.21; (95%CI 1.48-3.28), discrimination at university [PR] 1.42; (95%CI 1.08-1.86) and food insecurity [PR] 1.45; (95%CI 1.11-1.89) were associated with the presence of poor sleep quality, as well as having less social support and income and suffering psychological distress. The results highlight socioeconomic and mental health factors that affect sleep quality and demonstrate the need for reflection and interventions capable of minimizing this problem.

Estresse percebido entre estudantes de graduação: fatores associados, a influência do modelo ENEM/SiSU e possíveis consequências sobre a saúde / Perceived stress among undergraduate students: associated factors, influence of the ENEM/SiSU model, and its possible consequences on health

RESUMO Objetivo: Medir os níveis de estresse percebido, os fatores associados, em especial o impacto da escolha e satisfação com o curso, bem como as possíveis consequências desse desfecho entre graduandos. Métodos: Estudo transversal conduzido em 2019 com 996 estudantes de graduação de uma universidade pública no Sul do Brasil. A amostragem foi realizada de forma sistemática por conglomerados em único estágio. O desfecho foi avaliado por meio da Escala de Estresse Percebido. As análises de fatores associados e possíveis consequências foram realizadas por meio de regressão linear múltipla e regressão de Poisson, respectivamente. Resultados: O escore médio de estresse percebido foi de 31,1 (DP = 9). Indivíduos do sexo feminino, de orientação sexual não heterossexual, mais pobres, com insegurança alimentar, com medo de violência no bairro, com percepção de difícil acesso a serviço psicológico e com menor suporte social foram os mais estressados. Participantes mais velhos e com algum nível de atividade física foram menos estressados. A insatisfação com o curso atual, e não o fato de ser o curso desejado no ingresso, foi associada ao estresse. Uso não médico de remédio prescrito, ansiedade generalizada, sintomas depressivos e pior qualidade de sono e de vida foram identificados como possíveis consequências do estresse. Conclusões: O modelo ENEM/SiSU parece não exercer efeito no estresse. Além disso, esse desfecho foi mais elevado entre indivíduos mais vulneráveis, tendo contribuído para diversos desfechos negativos em saúde mental. Recomenda-se o fortalecimento de serviços de assistência estudantil para que esses casos sejam identificados e manejados.

ABSTRACT Objective: To measure levels of perceived stress, associated factors, especially the impact of choice and satisfaction with the course, as well as the possible consequences of this outcome among undergraduates. Methods: Cross-sectional study conducted in 2019 with 996 undergraduate students from a public university in southern Brazil. Sampling was carried out systematically by single-stage clusters. The outcome was assessed using the Perceived Stress Scale. Analysis of associated factors and possible consequences were performed using multiple linear regression and Poisson regression, respectively. Results: Mean perceived stress score was 31.1 (SD = 9). Female individuals, with non-heterosexual orientation, poorer, with food insecurity, with fear of violence in the neighborhood, with perception of difficult access to psychological services and with less social support were the most stressed. Older participants with some level of physical activity were less stressed. Dissatisfaction with the current course, rather than the fact that it was the desired course prior admission, was associated with high levels of stress. Non-medical use of prescribed medication, generalized anxiety, depressive symptoms, and poorer quality of sleep and life were identified as possible consequences of stress. Conclusions: The ENEM/SiSU model seems to have no effect on stress. Furthermore, this outcome was higher among more vulnerable individuals, having contributed to several negative outcomes in mental health. It is recommended to strengthen student assistance services so that these cases can be identified and managed.

Internet addiction and depressive symptoms: a dose-response effect mediated by levels of physical activity

Abstract Introduction There are several negative impacts on the physical and mental health of people presenting internet addiction, including development of mood disorders, such as depression. Objective The aim of the study was to evaluate the association between internet addiction and depressive symptoms, as well as to test the mediating role of physical activity in this association. Methods A cross-sectional study was conducted with undergraduate students from three universities (one private and two public institutions) in southern Brazil. Depressive symptoms were measured with the Beck Depression Inventory (BDI-21), internet addiction with the Internet Addiction Test (IAT-20), and physical activity with the International Physical Activity Questionnaire (IPAQ - short version). Poisson regression and the Karlson-Holm-Breen mediation method were used for statistical analyses. Results We observed a dose-response relationship between internet addiction and depressive symptoms. Levels of physical activity mediated the association between moderate internet addiction and depressive symptoms, accounting for 10.7% of the effect observed. Conclusion Internet addiction can be detrimental to individuals' health, contributing to development of depressive symptoms. Along with psychological and pharmacological therapies, prescription of physical activities is recommended.