Association of sleep quality with sociodemographic factors and lifestyle in adolescents from southern Brazil
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Good sleep quality is an essential component for growth, development, and physical and mental health of the individual, in addition to being a positive indicator of health and well-being. The objective of this study was to estimate the prevalence of poor sleep quality and to identify the association of poor sleep quality with sociodemographic factors, lifestyle, weight status, and associated aerobic fitness in adolescents.
This study included 1110 students aged 14–19 years from city of São José/SC, Brazil. Sleep quality of the subjects was assessed using a questionnaire and classified as adequate and low. Independent variables were gender, age, monthly household income, maternal education, school shift, global physical activity, proper diet, screen time, sleeping hours of full week, sleeping hours of weekdays, sleeping hours of weekends, weight status, and aerobic fitness. Binary logistic regression was used to estimate odds ratios and confidence intervals of 95%.
Prevalence of poor sleep quality was 60.4%. More likely to have poor sleep quality were identified in female students (OR 1.68, 95% CI 1.11–2.55), whose mothers had higher levels of education (OR 1.44, 95% CI 1.20–1.73) and low aerobic fitness (OR 1.80, 95% CI 1.02–3.19).
Adolescents who were most likely to report poor sleep quality were female, those whose mothers had a higher educational level and had low aerobic fitness. Students with sedentary risk behavior were less likely of reporting poor sleep quality.
KeywordsAdolescents Brazil Cross-sectional studies Demographic indicators Sleep hygiene
TRL performed analyses and wrote the manuscript. DASS designed the study, performed analyses and wrote the manuscript.
The study was funded by the National Council for Scientific and Technological Development (CNPQ).
Compliance with ethical standards
The study was approved by the Research Ethics with Human Beings from the Federal University of Santa Catarina (CAAE: 33210414.3.0000.0121).
Conflict of interest
The authors declare no conflict of interest regarding this research.
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