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Association between sleep and dietary patterns in preschool children
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Abstracts/Sleep Medicine 16 (2015) S2–S199
Results: There were no differences for either age or weight at the time of testing between the three groups studied. Compared with term and preterm AGA born children FGR children had a higher amount of N2 sleep (preterm FGR children 59 ± 1% vs term children 45 ± 2% vs preterm AGA children 39 ± 2%, p < 0.05) and a lower amount of N3 sleep (preterm FGR children 25 ± 1% vs term children 29 ± 3% vs preterm AGA children 35 ± 4%, p < 0.05). Preterm AGA children had reduced SE%, TST and higher WASO compared with IUGR (p < 0.05) and term children (p < 0.05). Conclusion: Preterm birth and FGR have long-lasting effects on sleep in children. N3 sleep is important for brain maturation and consolidation of memory and poor sleep is associated with impaired neurocognition in childhood. Sleep disturbance and its potential impact on neurodevelopment in FGR and preterm children warrants further investigation. Acknowledgements: The work is supported by project grant funding from the National Health and Medical Research Council (NHMRC) of Australia, an NHMRC Senior Research Fellowship (RSCH), and by the Victorian Government’s Operational Infratructure Support Program. http://dx.doi.org/10.1016/j.sleep.2015.02.052
Association between habitual activity and knowledge of public health guidelines in Canada A. Leblanc 1, M. Tremblay 2, C. Boyer 2, M. Borghese 2, J. Chaput 2, G. Leduc 2, P. Longmuir 2 1 University of Ottawa, Canada 2 Children’s Hospital of Eastern Ontario Research Institute, Canada
Introduction: The purpose of this study was to examine associations between child’s habitual activity (physical activity, sedentary behaviour, sleep) and knowledge of current Canadian public health guidelines; perceptions of physical activity and sleep were also examined. Materials and methods: Data for this study were obtained through the Canadian Assessment of Physical Literacy (CAPL) subsample of the International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) (n = 223, 38.1% boys). Knowledge of the guidelines, perceptions of physical activity, self-report quality/quantity of sleep, and habitual screen time were obtained via self-report. In prompted questioning, children were asked to identify current physical activity and screen time guidelines. Children were also asked to self-report their quality and quantity of sleep, what they would do to improve a sports skill, and what they would do if they wanted to improve their fitness. Sleep, sedentary behavior, and physical activity were captured by 7-day accelerometer, using a 24-hour wear time protocol. Generalized linear models (ANCOVA) were used to determine the relationship between habitual activity, and knowledge of guidelines, and self-perceptions of PA/sleep. Sex, waist circumference, maturity offset, parental education (mother and father), and annual household income were included as covariates in all models. Results: Children averaged 9.5 hours of sleep, 8.5 hours of sedentary behaviour, and 58 minutes of moderate- to vigorousintensity physical activity daily. Girls accumulated more sleep than boys (mean difference = 14.5 minutes, p < 0.01); boys engaged in significantly more moderate- to vigorous-intensity physical activity than girls (mean difference = 8.7 minutes, p < 0.0001); Most (77%) of children could correctly cite physical activity guidelines; fewer (18%) could correctly cite screen time guidelines. Children’s knowledge of physical activity and sedentary behaviour guidelines did not differ by accelerometer measured physical activity, sedentary behaviour, or sleep duration. In adjusted models, longer sleep duration, higher
physical activity, and lower sedentary behavior were associated with better self-reported sleep quality. Also in adjusted models, higher physical activity and lower sedentary behaviour were associated with better self-perceptions of physical activity; no associations were found with sleep duration. Conclusion: Most children can identify current physical activity guidelines yet few knew screen time guidelines. Future work should improve messaging associated with guidelines and aim to create 24-hour recommendations to include sleep. Acknowledgements: ISCOLE was funded by the Pennington Biomedical Research Center. http://dx.doi.org/10.1016/j.sleep.2015.02.053
Association between sleep and dietary patterns in preschool children Y. Song, F. Jiang Department of Developmental and Behavioral Pediatrics, Shanghai Children’s Medical Center affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
Introduction: Accumulating evidence indicates that short sleep duration is related to childhood obesity. Although the exact mechanism is unclear, food intake has been suggested to be a potential mediating factor. The association between sleep and dietary patterns are largely underreported in China. Materials and methods: Our aim is to evaluate the association between sleep and dietary patterns in preschool children. Participants included 1650 preschool children (aged 5.07 ± 0.97 years, of which 49.5% were boys) from 11 kindergartens of Hongkou district in Shanghai, China. Socio-demographic information, sleep and dietary patterns were collected by validated parental questionnaires. Results: The average total sleep duration was 9.41 ± 0.54 hours. Two major dietary patterns were identified in the study based on factor analysis: ‘traditional’ and ‘western’. Short sleep durations decreased odds of eating fruit (OR = 0.55, 95% CI 0.32–0.95) and vegetables (OR = 0.51, 95% CI 0.29–0.89). With regard to the midpoint of sleep, individuals who had earlier midpoint of sleep associated with higher traditional dietary pattern scores (OR = 1.60, 95% CI 1.19–2.17) but lower western dietary pattern scores (OR = 0.50, 95% CI 0.37–0.67), and a greater chance of taking more vegetables (OR = 2.77, 95% CI 1.55–4.96) but less dessert (OR = 0.72, 95% CI 0.54– 0.97) and soft drinks (OR = 0.09, 95% CI 0.01–0.73). Conclusion: Short sleep duration and late midpoint of sleep were significantly associated with dietary patterns in Chinese preschool children. Our findings may guide the management of preschool childhood obesity. Acknowledgements: The study was supported by Chinese National Natural Science Foundation (81172685); Ministry of Science and Technology (2010CB535000); The authors wish to thank the children and families whose ongoing participation made this study possible. http://dx.doi.org/10.1016/j.sleep.2015.02.054
Sleep disorders in children with asthma D. Che, M. Lu Shanghai Children’s Hospital, China
Introduction: Both OSA and asthma involve airway obstruction, and airway inflammation, a characteristic of asthma associated with
Abstracts/Sleep Medicine 16 (2015) S2–S199
Results: There were no differences for either age or weight at the time of testing between the three groups studied. Compared with term and preterm AGA born children FGR children had a higher amount of N2 sleep (preterm FGR children 59 ± 1% vs term children 45 ± 2% vs preterm AGA children 39 ± 2%, p < 0.05) and a lower amount of N3 sleep (preterm FGR children 25 ± 1% vs term children 29 ± 3% vs preterm AGA children 35 ± 4%, p < 0.05). Preterm AGA children had reduced SE%, TST and higher WASO compared with IUGR (p < 0.05) and term children (p < 0.05). Conclusion: Preterm birth and FGR have long-lasting effects on sleep in children. N3 sleep is important for brain maturation and consolidation of memory and poor sleep is associated with impaired neurocognition in childhood. Sleep disturbance and its potential impact on neurodevelopment in FGR and preterm children warrants further investigation. Acknowledgements: The work is supported by project grant funding from the National Health and Medical Research Council (NHMRC) of Australia, an NHMRC Senior Research Fellowship (RSCH), and by the Victorian Government’s Operational Infratructure Support Program. http://dx.doi.org/10.1016/j.sleep.2015.02.052
Association between habitual activity and knowledge of public health guidelines in Canada A. Leblanc 1, M. Tremblay 2, C. Boyer 2, M. Borghese 2, J. Chaput 2, G. Leduc 2, P. Longmuir 2 1 University of Ottawa, Canada 2 Children’s Hospital of Eastern Ontario Research Institute, Canada
Introduction: The purpose of this study was to examine associations between child’s habitual activity (physical activity, sedentary behaviour, sleep) and knowledge of current Canadian public health guidelines; perceptions of physical activity and sleep were also examined. Materials and methods: Data for this study were obtained through the Canadian Assessment of Physical Literacy (CAPL) subsample of the International Study of Childhood Obesity, Lifestyle and the Environment (ISCOLE) (n = 223, 38.1% boys). Knowledge of the guidelines, perceptions of physical activity, self-report quality/quantity of sleep, and habitual screen time were obtained via self-report. In prompted questioning, children were asked to identify current physical activity and screen time guidelines. Children were also asked to self-report their quality and quantity of sleep, what they would do to improve a sports skill, and what they would do if they wanted to improve their fitness. Sleep, sedentary behavior, and physical activity were captured by 7-day accelerometer, using a 24-hour wear time protocol. Generalized linear models (ANCOVA) were used to determine the relationship between habitual activity, and knowledge of guidelines, and self-perceptions of PA/sleep. Sex, waist circumference, maturity offset, parental education (mother and father), and annual household income were included as covariates in all models. Results: Children averaged 9.5 hours of sleep, 8.5 hours of sedentary behaviour, and 58 minutes of moderate- to vigorousintensity physical activity daily. Girls accumulated more sleep than boys (mean difference = 14.5 minutes, p < 0.01); boys engaged in significantly more moderate- to vigorous-intensity physical activity than girls (mean difference = 8.7 minutes, p < 0.0001); Most (77%) of children could correctly cite physical activity guidelines; fewer (18%) could correctly cite screen time guidelines. Children’s knowledge of physical activity and sedentary behaviour guidelines did not differ by accelerometer measured physical activity, sedentary behaviour, or sleep duration. In adjusted models, longer sleep duration, higher
physical activity, and lower sedentary behavior were associated with better self-reported sleep quality. Also in adjusted models, higher physical activity and lower sedentary behaviour were associated with better self-perceptions of physical activity; no associations were found with sleep duration. Conclusion: Most children can identify current physical activity guidelines yet few knew screen time guidelines. Future work should improve messaging associated with guidelines and aim to create 24-hour recommendations to include sleep. Acknowledgements: ISCOLE was funded by the Pennington Biomedical Research Center. http://dx.doi.org/10.1016/j.sleep.2015.02.053
Association between sleep and dietary patterns in preschool children Y. Song, F. Jiang Department of Developmental and Behavioral Pediatrics, Shanghai Children’s Medical Center affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
Introduction: Accumulating evidence indicates that short sleep duration is related to childhood obesity. Although the exact mechanism is unclear, food intake has been suggested to be a potential mediating factor. The association between sleep and dietary patterns are largely underreported in China. Materials and methods: Our aim is to evaluate the association between sleep and dietary patterns in preschool children. Participants included 1650 preschool children (aged 5.07 ± 0.97 years, of which 49.5% were boys) from 11 kindergartens of Hongkou district in Shanghai, China. Socio-demographic information, sleep and dietary patterns were collected by validated parental questionnaires. Results: The average total sleep duration was 9.41 ± 0.54 hours. Two major dietary patterns were identified in the study based on factor analysis: ‘traditional’ and ‘western’. Short sleep durations decreased odds of eating fruit (OR = 0.55, 95% CI 0.32–0.95) and vegetables (OR = 0.51, 95% CI 0.29–0.89). With regard to the midpoint of sleep, individuals who had earlier midpoint of sleep associated with higher traditional dietary pattern scores (OR = 1.60, 95% CI 1.19–2.17) but lower western dietary pattern scores (OR = 0.50, 95% CI 0.37–0.67), and a greater chance of taking more vegetables (OR = 2.77, 95% CI 1.55–4.96) but less dessert (OR = 0.72, 95% CI 0.54– 0.97) and soft drinks (OR = 0.09, 95% CI 0.01–0.73). Conclusion: Short sleep duration and late midpoint of sleep were significantly associated with dietary patterns in Chinese preschool children. Our findings may guide the management of preschool childhood obesity. Acknowledgements: The study was supported by Chinese National Natural Science Foundation (81172685); Ministry of Science and Technology (2010CB535000); The authors wish to thank the children and families whose ongoing participation made this study possible. http://dx.doi.org/10.1016/j.sleep.2015.02.054
Sleep disorders in children with asthma D. Che, M. Lu Shanghai Children’s Hospital, China
Introduction: Both OSA and asthma involve airway obstruction, and airway inflammation, a characteristic of asthma associated with