Dataset Information

Association between abdominal obesity, screen time and sleep in adolescents.

ABSTRACT:

Objective

To assess the association between abdominal obesity, food intake, sleep deprivation, and screen time in adolescents.

Methods

This cross-sectional study was conducted with 432 adolescents aged 14-19 years, from public and private schools. Anthropometric and body composition measures included body weight, waist circumference, body mass index for age, waist-to-hip ratio, waist-to-height ratio, and body fat percentage. Abdominal obesity was defined by age and sex specific cut-off points for waist circumference. Food intake, screen time, sexual maturation, and sleep duration were evaluated by self-administered questionnaires.

Results

The prevalence of excess body weight and abdominal obesity was 16.7% and 27.5%, respectively. Students in the adult phase (post-puberty), with inadequate waist-to-height ratio, high body fat percentage, and screen time ≥ 3 h/day were, respectively, 2.5 (95% CI 1.40-4.46), 7.44 (95% CI 1.08-51.46), 2.79 (95% CI 1.04-7.50), and 1.43 (95% CI 1.24-3.89) more likely to have abdominal obesity. Low intake of unprocessed or minimally processed foods was associated with inadequate sleep duration, while high intake of ultra-processed foods was associated with high screen time.

Conclusions

Abdominal obesity was associated with the adult phase, short sleep duration and high screen time. The degree of food processing was associated with screen time and sleep duration. Assessing the risk factors of abdominal obesity may be a useful strategy for preventing cardiovascular disease in adolescents.

SUBMITTER: de Oliveira IDR

PROVIDER: S-EPMC9875269 | biostudies-literature | 2023 Jan-Feb

REPOSITORIES: biostudies-literature

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Publications

Association between abdominal obesity, screen time and sleep in adolescents.

de Oliveira Isabela Dos Reis IDR Maciel Nathália Maximiano Soares NMS da Costa Bianca Tomaz BT Soares Anne Danieli Nascimento ADN Gomes Júnia Maria Geraldo JMG

Jornal de pediatria 20220611 1

<h4>Objective</h4>To assess the association between abdominal obesity, food intake, sleep deprivation, and screen time in adolescents.<h4>Methods</h4>This cross-sectional study was conducted with 432 adolescents aged 14-19 years, from public and private schools. Anthropometric and body composition measures included body weight, waist circumference, body mass index for age, waist-to-hip ratio, waist-to-height ratio, and body fat percentage. Abdominal obesity was defined by age and sex specific cu ...[more]

PMID: 35697123

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Project description:BackgroundShort sleep duration has been suggested to lead to insulin resistance both directly by altering glucose metabolism and indirectly through obesity. This study aims to investigate associations between nocturnal sleep duration and insulin resistance considering abdominal obesity as a mediator.MethodsWe analysed data of 3 900 children aged 2-15 years participating in the second (2009/10) and third (2013/14) examination wave of the European IDEFICS/I.Family study (hereafter referred to as baseline and follow-up). Information on nocturnal sleep duration was collected by questionnaires and age-standardised (SLEEP z-score). The homeostasis model assessment (HOMA) was calculated from fasting insulin and fasting glucose obtained from blood samples; waist circumference (WAIST) was measured with an inelastic tape. HOMA and WAIST were used as indicators for insulin resistance and abdominal obesity, respectively, and transformed to age- and sex-specific z-scores. Cross-sectional and longitudinal associations between SLEEP z-score and HOMA z-score were investigated based on a path model considering WAIST z-score as a mediator adjusting for relevant confounders.ResultsCross-sectionally, baseline SLEEP z-score was negatively associated with baseline WAIST z-score (unstandardised effect estimate -0.120, 95% confidence interval [-0.167; -0.073]). We observed no direct effect of baseline SLEEP z-score on baseline HOMA z-score but a negative indirect effect through baseline WAIST z-score (-0.042 [-0.058; -0.025]). Longitudinally, there was no direct effect of baseline SLEEP z-score on HOMA z-score at follow-up but a negative indirect effect through both baseline WAIST z-score and WAIST z-score at follow-up (-0.028 [-0.040; -0.016]).ConclusionsOur results do not support the hypothesis of an association between short sleep duration and insulin resistance independent of abdominal obesity. However, longer sleep duration may exert short and long term beneficial effects on insulin resistance through its beneficial effects on abdominal obesity.

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Dataset Information

Association between abdominal obesity, screen time and sleep in adolescents.

Objective

Methods

Results

Conclusions

Publications

Association between abdominal obesity, screen time and sleep in adolescents.

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