scholarly journals Sleep Duration and Sleep Problems in a Representative Sample of German Children and Adolescents

Health ◽  
2015 ◽  
Vol 07 (11) ◽  
pp. 1397-1408 ◽  
Author(s):  
Angelika A. Schlarb ◽  
Marco D. Gulewitsch ◽  
Victoria Weltzer ◽  
Ute Ellert ◽  
Paul Enck
2000 ◽  
Vol 37 (2) ◽  
pp. 93-101 ◽  
Author(s):  
F. Oeffner ◽  
D. Bornholdt ◽  
A. Ziegler ◽  
A. Hinney ◽  
T. Görg ◽  
...  

2021 ◽  
pp. 089011712110291
Author(s):  
Puneet Kaur Chehal ◽  
Livvy Shafer ◽  
Solveig Argeseanu Cunningham

Purpose: This study contributes to the growing literature on the association between sleep and obesity by examining the associations between hours of sleep, consistency of bedtime, and obesity among children in the US. Design: Analysis of a nationally representative sample of non-institutionalized children from the 2016-17 National Survey of Children’s Health. Setting: US, national. Subjects: Children ages 10-17 years (n = 34,640) Measures: Parent reported weeknight average hours of sleep and consistency of bedtime. Body mass index classified as underweight, normal, overweight or obesity using parent-reported child height and weight information, classified using CDC BMI-for-Age Growth Charts. Analysis: Multivariate logistic regression models were used to estimate associations between measures of sleep and body mass index weight category adjusting for individual, household and neighborhood characteristics. Results: An additional hour of sleep was associated with 10.8% lower odds of obesity, net of consistency in bedtime. After controlling for sleep duration, children who usually went to bed at the same time on weeknights had lower odds of obesity (24.8%) relative to children who always went to bed at the same time. Conclusion: Sleep duration is predictive of lower odds of obesity in US children and adolescents. Some variability in weeknight bedtime is associated with lower odds of obesity, though there were no additional benefits to extensive variability in bedtime.


2013 ◽  
Vol 62 (1) ◽  
pp. 75-79 ◽  
Author(s):  
U. Alexy ◽  
J. Freese ◽  
M. Kersting ◽  
K. Clausen

SLEEP ◽  
2021 ◽  
Author(s):  
Céline De Looze ◽  
Joanne C Feeney ◽  
Siobhan Scarlett ◽  
Rebecca Hirst ◽  
Silvin P Knight ◽  
...  

Abstract Study Objectives This study examines the cross-sectional and two-year follow-up relationships between sleep and stress and total hippocampal volume and hippocampal subfield volumes among older adults. Methods 417 adults (aged 68.8±7.3; 54% women) from the Irish Longitudinal Study on Ageing completed an interview, a questionnaire and multiparametric brain MRI. The relationships between self-reported sleep duration, sleep problems, perceived stress and total hippocampal volume were examined by using ordinary least squares regressions. Linear mixed-effects models were used to investigate the relationships between sleep duration, sleep problems, perceived stress, changes in these measures over two-years and hippocampal subfield volumes. Results No cross-sectional and follow-up associations between sleep and total hippocampal volume and between stress and total hippocampal volume were found. By contrast, Long sleep (≥9-10 hours / night) was associated with smaller volumes of molecular layer, hippocampal tail, presubiculum and subiculum. The co-occurrence of Short sleep (≤6 hours) and perceived stress was associated with smaller cornu ammonis 1, molecular layer, subiculum and tail. Sleep problems independently and in conjunction with higher stress, and increase in sleep problems over 2 years were associated with smaller volumes of these same subfields. Conclusion Our study highlights the importance of concurrently assessing sub-optimal sleep and stress for phenotyping individuals at risk of hippocampal subfield atrophy.


Obesity Facts ◽  
2012 ◽  
Vol 5 (1) ◽  
pp. 77-90 ◽  
Author(s):  
Sandra Plachta-Danielzik ◽  
Marie Isabel Gehrke ◽  
Britta Kehden ◽  
Katrin Kromeyer-Hauschild ◽  
Monika Grillenberger ◽  
...  

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