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ABSTRACT BACKGROUND: The coronavirus disease (COVID-19) pandemic has adversely affected the health of the global population, with sleep quality being one of the affected parameters. OBJECTIVES: To evaluate sleep quality and its associated factors in adults during the COVID-19 pandemic in Brazil. DESIGN AND SETTING: A population-based cross-sectional serological survey of 1,762 adults in the Iron Quadrangle region of Brazil. METHODS: The Pittsburgh Sleep Quality Index was used to assess sleep quality. Sociodemographic variables, health conditions, health-related behaviors, anxiety, vitamin D levels, weight gain/loss, and pandemic characteristics were assessed using a structured questionnaire. Univariate and multivariate analyses using Poisson regression with robust variance were performed to identify factors associated with sleep quality. RESULTS: More than half of the participants reported poor sleep quality (52.5%). Multivariate analysis revealed that the factors associated with poor sleep quality included living alone (prevalence ratio [PR] = 1.34; 95% confidence interval [CI]: 1.04-1.73), anxiety disorder (PR = 1.32; 95% CI: 1.08-1.62), 5.0% weight loss (PR = 1.21; 95% CI: 1.02-1.44), 5.0% weight gain (PR = 1.27; 95% CI: 1.03-1.55), vitamin D deficiency (PR = 1.16; 95% CI: 1.01-1.35), and COVID-19 symptoms (PR = 1.29; 95% CI: 1.10-1.52). CONCLUSIONS: Our study revealed that more than half of the participants experienced poor sleep quality during the COVID-19 pandemic. Factors associated with poor sleep quality included vitamin D deficiency and weight changes related to the pandemic.
ABSTRACT
Resumo Objetivo: descrever o perfil de desfechos de COVID-19 em trabalhadores da mineração e a dinâmica dos casos nas unidades de mineração e seus respectivos municípios. Métodos: estudo de coorte e ecológico, com dados secundários clínico-epidemiológicos, sociodemográficos e ocupacionais de trabalhadores de mineradora multinacional no Brasil e de casos de COVID-19 nos cinco municípios onde as unidades estavam localizadas, de março de 2020 a abril de 2021. A incidência acumulada e média móvel (MM) de 7 dias dos casos foram calculadas e comparadas na unidade e respectivo município. Resultados: foram incluídos 17.523 trabalhadores; 88,4% eram do sexo masculino; e 22,6% tiveram pelo menos um resultado positivo. Os trabalhadores mais testados, com casos positivos, colocados em quarentena e com sintomas foram do sexo feminino, de meia-idade, morando e trabalhando no Rio de Janeiro, diretamente contratados pela mineradora, em turnos e ocupações de alto risco. Todas as unidades apresentaram uma incidência acumulada superior aos seus respectivos municípios. Três municípios apresentaram picos de COVID-19 com MM coincidindo com o aumento de casos entre trabalhadores de mineração. Conclusão: aproximadamente um quinto dos trabalhadores foram diagnosticados com COVID-19, e a distribuição temporal dos casos nas unidades de mineração foi semelhante àquela dos municípios onde estavam localizadas.
Abstract Objective: to describe the COVID-19 clinical outcomes profile from mining workers and the cases dynamic within the mining units and their respective municipalities. Methods: a cohort and ecological study using workers clinical-epidemiological, sociodemographic, and occupational secondary data of a multinational mining company, and of COVID-19 cases from five municipalities where the mining units were located, in Brazil, between March 2020 to April 2021. We calculated the cases cumulative incidence and the 7-day moving average (MA), and compared at the mining unit and respective municipality. Results: the study included 17,523 workers, 88.4% male, and 22.6% had at least one positive result for COVID-19. The workers most tested, with positive results, placed in quarantine, and with symptoms were female, middle-aged, living and working in Rio de Janeiro state, directly hired by the mining company, in shift-work, and in high-risk occupations. All mining units presented a cumulative incidence higher than their respective municipalities. Three municipalities showed peaks of COVID-19 with MA cases coinciding with an increase in cases among mining workers. Conclusion: approximately one-fifth of workers were diagnosed with COVID-19. The mining units had a similar temporal distribution of COVID-19 cases to the municipalities where they were located.
ABSTRACT
Objetivos: Avaliar a concordância entre fenótipo de cintura hipertrigliceridêmica e fenótipo cintura estatura hipertrigliceridêmica, e a associação desses fenótipos com alterações antropométricas, bioquímicas e clínicas em homens adultos com risco metabólico aumentado pela exposição ao turno alternante. Métodos: Estudo transversal realizado com 678 trabalhadores do sexo masculino. O fenótipo de cintura hipertrigliceridêmica foi definido pelo perímetro da cintura ≥ 94 cm e triglicérides ≥ 150 mg/dL; o fenótipo cintura estatura hipertrigliceridêmica pela razão cintura estatura ≥ 0,5; e triglicérides ≥ 150mg/dL. Foram avaliados o índice de massa corporal, pressão arterial, colesterol total, high-density lipoprotein colesterol, low-density lipoprotein colesterol, triglicérides e glicemia de jejum. O teste Kappa foi utilizado para avaliar a concordância entre os fenótipos e o teste Qui-quadrado de Pearson, para verificar a associação entre os fenótipos e os componentes de risco para doenças cardiovasculares. Para todos os testes, o nível de significância adotado foi de 5%. Resultados: A concordância entre o fenótipo de cintura hipertrigliceridêmica e o fenótipo cintura estatura hipertrigliceridêmica foi significativa e substancial. Ambos fenótipos foram relacionados significativamente com índice de massa corporal, colesterol total, high-density lipoprotein colesterol e pressão arterial aumentados. Conclusões: Sugere-se o uso do fenótipo cintura estatura hipertrigliceridemica, já que demonstrou associações que se mantiveram independentemente da faixa etária e identificou maior proporção de trabalhadores em turnos alternantes com componentes de risco cardiovascular. (AU)
Objective: This study evaluated the agreement between hypertriglyceridemic waist and hypertriglyceridemic waist height phenotypes and the association of these phenotypes with anthropometric, biochemical, and clinical alterations in adult men with increased metabolic risk due to rotating shift exposure. Methods: The cross-sectional study included 678 male workers. The hypertriglyceridemic waist phenotype was defined as waist circumference ≥ 94 cm and triglyceride concentration ≥150 mg/dL; the hypertriglyceridemic waist height phenotype was defined as a height-waist ratio ≥0.5 and triglyceride concentration ≥ 150mg/dL. Body mass index, blood pressure, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglyceride, and glucose levels were evaluated. The Kappa test was used to assess the concordance between phenotypes, and the Pearson's chi-square tests were used to verify the association between phenotypes and risk components for cardiovascular diseases. For all tests, the significance level was 5%. Results: The agreement between the hypertriglyceridemic waist and the hypertriglyceridemic waist height phenotypes was significant and substantial. Both phenotypes were significantly related to increased body mass index, total cholesterol, high-density lipoprotein cholesterol, and blood pressure. Conclusion: We propose the use of hypertriglyceridemic waist-toheight ratio as it demonstrated associations that persisted regardless of the age group and also identified a higher proportion of rotating shift workers with cardiovascular risk components. (AU)