• Sao Paulo Med J · Jan 2022

    Determinants of poor sleep quality in adults during the coronavirus disease pandemic: COVID-Inconfidentes, a population-based study.

    • Luiz Antônio Alves de Menezes Júnior, Luciano Garcia Lourenção, AndradeAmanda Cristina de SouzaACS0000-0002-3366-4423MSc, PhD. Statistics and Associated Professor, Institute of Collective Health, Universidade Federal do Mato Grosso (UFMT), Cuiabá (MT), Brazil., Júlia Cristina Cardoso Carraro, George Luiz Lins Machado-Coelho, and Adriana Lúcia Meireles.
    • MSc. Nutritionist and Doctoral Student, Postgraduate Program in Health and Nutrition, Universidade Federal de Ouro Preto (UFOP), Ouro Preto (MG), Brazil.
    • Sao Paulo Med J. 2022 Jan 1; 141 (4): e2022139e2022139.

    BackgroundThe coronavirus disease (COVID-19) pandemic has adversely affected the health of the global population, with sleep quality being one of the affected parameters.ObjectivesTo evaluate sleep quality and its associated factors in adults during the COVID-19 pandemic in Brazil.Design And SettingA population-based cross-sectional serological survey of 1,762 adults in the Iron Quadrangle region of Brazil.MethodsThe 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.ResultsMore 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).ConclusionsOur 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.

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