Sociodemographic factors associated with sleep quality and sleep duration in adolescents from Santa Catarina, Brazil: what changed between 2001 and 2011?

Hoefelmann, Luana Peter; Lopes, Adair da Silva; Silva, Kelly Samara da; Moritz, Pablo; Nahas, Markus Vinicius

doi:10.1016/j.sleep.2013.05.015

Cited by 44 publications

(78 citation statements)

References 49 publications

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“…The finding agrees with that found in a study by Hoefelmann et al 9 in which insufficient sleep hours were related to being older. When it comes to excess body fat, it is in agreement with results found by Salvador et al 3 , in which older adolescents were less likely to present excess body fat.…”

Section: Discussionsupporting

confidence: 93%

“…The finding corroborates results found by Hoefelmann et al 9, in which girls were less likely to have insufficient hours of sleep/day. However, she disagrees with research by Garaulet et al 10 in which girls were more likely to have insufficient hours of sleep/day.…”

Section: Discussionsupporting

confidence: 92%

“…Similar results were observed in schoolchildren in the United States, where those who reached higher levels of physical activity reported fewer hours of sleep 11 . One of the possible causes of these effects is that adolescents are increasingly involved in extracurricular activities (academic, social and sports activities) and these are directly associated with a decrease in the number of hours of sleep per day 9 . In addition, the decrease of hours of sleep a day contributes to an increase in body fat 10,12 through hormonal changes and consequently an increase in appetite and a greater intake of calories 12 .…”

Section: Discussionmentioning

confidence: 99%

“…And the answers to this questioning were classified as 'no' (infrequently, rarely and sometimes) and 'yes' (relatively often and often). The perception of sleep quality was used as a control variable because it was directly associated with the number of hours of sleep 9 .…”

Section: Control Variablesmentioning

confidence: 99%

“…The study by Matricciani et al 8 identified, through an evaluation of studies dating from 1905 to 2008, a secular tendency to decrease the number of hours of sleep in children and adolescents. In Brazil, a survey conducted with adolescents identified an increase of 45.9% in the number of hours of sleep (<8 hours per day) during the period from 2001 to 2011 9 . The students who had an insufficient number of hours of sleep/day were male adolescents with a high economic level and high maternal education 6,[9][10][11] .…”

mentioning

confidence: 99%

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Simultaneous presence of excess weight and insufficient hours of sleep in adolescents: prevalence and related factors

Lima

Sousa

Castro

et al. 2017

J. Hum. Growth Dev.

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Introduction: An increase in excess body fat and a decrease in the number of hours of sleep per day are health problems affecting the paediatric population.Objective: To estimate the combined prevalence of overweight and insufficient sleep/day in adolescents, and the association with sociodemographic characteristics, physical activity and sedentary behaviour. Methods:A cross-sectional school-based study was conducted with 1,132 participants from 14 to 19 years old in São José, Santa Catarina, Brazil. Body fat was assessed by body mass index (BMI) and classified by the Z-score, while adolescents reported the total hours of sleep/day. Sociodemographic data, physical activity and sedentary behaviour were collected by self-filled questionnaire. Results:The simultaneous prevalence of overweight and insufficient sleep/day was 17.5%. The factors associated with this condition were to meet the recommendations of the practice of physical activity per week, participate in gym class twice/week and period greater/equal to four hours/day in front of the screen. Conclusion:Guidelines in the school environment in relation to health problems posed by weight excess and the amount of insufficient hours sleep can be present when recommendations on physical activity and sedentary behaviour are given to students.Keywords: obesity, overweight, body mass index, epidemiology, adolescent health, motor activity, crosssectional studies Corresponding author: tiagopersonaltrainer@gmail.com Suggested citation: Lima TR, Sousa GR, Castro JAC, Silva DAS. Simultaneous presence of excess weight and insufficient hours of sleep in adolescents: prevalence and related factors. J Hum Growth Dev. 2017; 27(2): 148-157 Simultaneous presence of excess weight and insufficient hours of sleep in adolescents: prevalence and related factors J Hum Growth Dev. 2017; 27(2): 148-157

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 92%