No relation between sleep duration and adiposity indicators in 9–36 months old children: the <scp>SKOT</scp> cohort

Klingenberg, Lars; Christensen, Line Brinch; Hjorth, Mads F.; Zangenberg, S.; Chaput, Jean‐Philippe; Sjödin, Anders; Mølgaard, Christian; Michaelsen, Kim F.

doi:10.1111/j.2047-6310.2012.00109.x

Cited by 50 publications

(54 citation statements)

References 13 publications

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“…Although longitudinal studies in preschool‐aged children have predominantly suggested that total sleep duration is negatively associated with weight gain overtime or later adiposity, in our study, there was no prospective association between total sleep duration and adiposity after 12 months. Our null association finding is consistent with other two longitudinal studies in Australian (n = 7701) and Danish toddlers (n = 311) . A possible reason for the inconsistent findings between toddlers and preschoolers may be related to the developmental differences .…”

Section: Discussionsupporting

confidence: 89%

The cross‐sectional and prospective associations between sleep characteristics and adiposity in toddlers: Results from the GET UP! Study

et al. 2019

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Summary Background The associations between sleep characteristics and adiposity in children under three years are not fully understood yet. Objective The objective of the study is to examine the cross‐sectional and prospective associations between sleep characteristics and adiposity in toddlers over a 12‐month period. Methods Participants were 202 toddlers from the GET‐UP! Study. Sleep duration, sleep timing, and sleep variability were assessed using 24‐hour accelerometry for seven consecutive days. Height and weight were measured, and BMI z scores were calculated. Linear mixed models were performed to examine the cross‐sectional and prospective associations between sleep characteristics and adiposity, with adjustments for clustering effects and demographic factors. Results Total sleep duration was negatively associated with higher adiposity cross‐sectionally (B = −0.12; 95% CI: −0.23, −0.01; .033) but not prospectively (B = 0.01; 95% CI: −0.13, 0.10; .843). Nap duration was prospectively associated with higher levels of adiposity (B = 0.41; 95% CI: 0.14, 0.68; .003). Sleep variability and sleep timing were not associated with concurrent or subsequent adiposity. Conclusion Although sleep duration is an important factor associated with obesity in toddlerhood, the potential effects of different types of sleep duration may vary. While longer total sleep duration may protect children from increasing adiposity, longer nap duration seems to be risk factor. As evidence in this age group is scarce, more research is needed to confirm this finding.

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Section: Discussionsupporting

confidence: 89%

The cross‐sectional and prospective associations between sleep characteristics and adiposity in toddlers: Results from the GET UP! Study

et al. 2019

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“…We acknowledge that it seems unfeasible to avoid any video dependence for children at present time, but the relationship between video use close to bedtime and short sleep should be stressed. Of note, we did not found any relationship between sleep duration and child BMI, in contrast with the prevalent literature on this topic [26, 27], but in accordance with others [28]. This discrepancy among different studies might be due to variables considered, as it is known that many factors (and video use above all) are related with both sleep and obesity status.…”

Section: Discussionsupporting

confidence: 80%

Sleep habits and pattern in 1-14 years old children and relationship with video devices use and evening and night child activities

Brambilla

Giussani

Pasinato³

et al. 2017

Ital J Pediatr

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BackgroundSleep in childhood and adolescence is crucial for mental and physical health; however several researches reported an increasing trend towards a sleep deprivation in this age. Due to the lack of recent epidemiological studies in Italy, the aim of our study was to depict sleep habits and patterns in Italian children aged 1–14 years and to evaluate their relationships with video devices use (TV, tablet, smartphone, PC) and evening/night child activities.MethodsA structured interview was conducted during 2015 by 72 Family Pediatricians in 2030 healthy children aged 1–14 years by a cross-sectional survey named “Ci piace sognare”. Total sleep duration was calculated, 2015 National Sleep Foundation Recommendations were used as reference. Optimal sleepers were defined children sleeping in own bed all night without awakenings. Multivariable median regression was performed to identify predictors of sleep duration and multivariable logistic regression for predictors of optimal sleep.ResultsTotal sleep duration and numbers of awakenings decreased with age. Only 66.9% of children had sleep duration in agreement with Recommendations (50% in 10–14 years group). Before sleeping 63.5% of children used video devices (39.6% at 1–3 years), 39.1% read, 27.5% drank and 19.5% ate. Bottle users at bedtime were 30.8% at 1–3 years, 16.6% at 3–5 years and 4.9% at 5–7 years. Overall, 23.4% of children changed sleeping place during the night, 22.4% referred sleeping problems in the first year of life.Video devices use was negative predictor of sleep duration (-0.25 h [95%CI:-0.35,-0.14], p < 0.001). Optimal sleep was inversely related with bedroom TV (OR 0.63 [0.50,0.79], p < 0.001), with sleeping disorders in the first year (OR 0.62 [0.48,0.80], p < 0.001)), with bottle use (OR 0.64 [0.44,0.94], p < 0.05) and posivively related with high mother’s education level (OR 1.44 [1.11,1.88], p < 0.01).ConclusionsAbout one third of 1 to 14 year Italian children sleep less than recommended, one half in teenage. Modifiable risk factors for sleep abnormalities such as video devices use, bedroom TV and bottle use should be target of preventive strategies for a correct sleep. Pediatricians should give priority to the identification of sleep disorders early in life.Electronic supplementary materialThe online version of this article (doi:10.1186/s13052-016-0324-x) contains supplementary material, which is available to authorized users.

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“…Only six studies used a time diary, or sleep log , and two studies used a validated sleep questionnaire . The objective methods for sleep assessment were rarely used, with two studies reporting the use of actigraphy and another one reporting use of polysomnography for sleep assessment . The variability in the definition of ‘short sleep’, highlighted in nearly all of the reviews published on this topic, was encountered in our meta‐analysis as well.…”

Section: Resultsmentioning

confidence: 94%

Longitudinal impact of sleep on overweight and obesity in children and adolescents: a systematic review and bias‐adjusted meta‐analysis

2015

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Short sleep duration is considered a potential risk for overweight/obesity in childhood and adolescence. However, most of the evidence on this topic is obtained from cross-sectional studies; therefore, the nature and extent of the longitudinal associations are unclear. This study explores the prospective association between short sleep and overweight/obesity in young subjects. The MEDLINE, EMBASE, Pubmed, and CINAHL databases were searched for English-language articles, published until May 2014, reporting longitudinal association between sleep and body mass index (BMI) in children and adolescents. Recommendations of the Sleep Health Foundation were used to standardize reference sleep duration. Sleep category, with sleep duration less than the reference sleep, was considered as the short sleep category. Meta-analysis was conducted to explore the association between short sleep and overweight/obesity. A review of 22 longitudinal studies, with subjects from diverse backgrounds, suggested an inverse association between sleep duration and BMI. Meta-analysis of 11 longitudinal studies, comprising 24,821 participants, revealed that subjects sleeping for short duration had twice the risk of being overweight/obese, compared with subjects sleeping for long duration (odds ratio 2.15; 95% confidence interval: 1.64-2.81). This study provides evidence that short sleep duration in young subjects is significantly associated with future overweight/obesity.

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No relation between sleep duration and adiposity indicators in 9–36 months old children: the SKOT cohort

Abstract: Our results do not support the hypothesis that short sleep duration is associated with increased adiposity in this cohort of young Danish children.

Cited by 50 publications

References 13 publications

The cross‐sectional and prospective associations between sleep characteristics and adiposity in toddlers: Results from the GET UP! Study

The cross‐sectional and prospective associations between sleep characteristics and adiposity in toddlers: Results from the GET UP! Study

Sleep habits and pattern in 1-14 years old children and relationship with video devices use and evening and night child activities

Longitudinal impact of sleep on overweight and obesity in children and adolescents: a systematic review and bias‐adjusted meta‐analysis

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