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Associations between body mass index and sleep duration in Brazilian children and adolescents: the moderating role of screen time

  • Leticia Borfe ORCID logo , Ana P. Sehn ORCID logo , Cézane Priscila Reuter ORCID logo , Jorge Mota , Ryan Donald Burns , Caroline Brand ORCID logo EMAIL logo und Anelise R. Gaya ORCID logo
Veröffentlicht/Copyright: 14. Februar 2025
Journal of Pediatric Endocrinology and Metabolism
Aus der Zeitschrift Journal of Pediatric Endocrinology and Metabolism Band 38 Heft 4

Abstract

Objectives

To verify the moderating role of screen time in the relationship between body mass index (BMI) and sleep duration in children and adolescents.

Methods

This cross-sectional study involved 1,338 children and adolescents (aged 6–17 years old; 761 girls) recruited from a municipality in south Brazil. Body weight and height were assessed to calculate BMI. Information regarding screen time, sleep duration, age, sex, sexual maturation, housing area, and socioeconomic status was obtained through a self-reported questionnaire. Moderation was tested using multiple linear regression modelling through an SPSS program extension. All models were adjusted for sex, age, sexual maturation, housing area, and socioeconomic status.

Results

No association was found between BMI and sleep duration (β=0.830; 95 % CI=−0.943; 2.603). However, when the role of screen time was considered, it was observed that this variable significantly moderated the relationship between BMI and sleep duration (β=−0.006; 95 % CI=−0.011; −0.001). Specifically, children and adolescents who spent more than 360 min per day in front of the screens presented higher BMI and shorter sleep durations.

Conclusions

The more time children and adolescents spend in front of screens, the higher the likelihood it will negatively affect their BMI and sleep duration. These findings emphasize the need for interventions that promote healthy screen habits and encourage behaviors that support optimal sleep duration to mitigate the potential negative effects on body weight and overall health.

Keywords: sleep; sedentary behavior; body composition; children; adolescents
Corresponding Author: Caroline Brand, PhD in Movement Human Sciences, IRyS Group, Physical Education School, Pontificia Universidad Católica de Valparaíso, 1290 El Bosque Av, Sausalito, Valparaiso, Chile, E-mail:

Funding source: Fundação de Amparo àPesquisa do Estado do Rio Grande do Sul

Acknowledgments

The authors thank the collaboration of the schools, the research group of the Health Research Laboratory (LAPES), as well as all the support of the University of Santa Cruz do Sul – UNISC and Higher Education Personnel Improvement Coordination – Brazil (CAPES) – Financing Code 001.

  1. Research ethics: The present study was approved by the Ethics Committee of the University of Santa Cruz do Sul (UNISC) (number 1.498.305) and followed the resolution 466/2012 of the National Council of Health in Brazil.

  2. Informed consent: The informed consent form for participation in this study was provided by the legal guardian of the participants.

  3. Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission. LB, APS, and CPR participated in data organization and study design. LB, APS, and CB performed the statistical analysis and drafted the manuscript. CPR and ARG contributed to the review of the analysis and the writing of the manuscript. JM and RDB contributed critical comments to the study. LB, APS, CPR, JM, RDB, CB and ARG read and approved the final manuscript.

  4. Use of Large Language Models, AI and Machine Learning Tools: None declared.

  5. Conflict of interest: The authors state no conflict of interest.

  6. Research funding: Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul.

  7. Data availability: The raw data can be obtained on request from the corresponding author.

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Supplementary Material

This article contains supplementary material (https://doi.org/10.1515/jpem-2024-0302).

Received: 2024-07-09
Accepted: 2025-01-16
Published Online: 2025-02-14
Published in Print: 2025-04-28

© 2025 Walter de Gruyter GmbH, Berlin/Boston

Artikel in diesem Heft

  1. Frontmatter
  2. Original Articles
  3. Diabetes distress, depression, and future glycemic control among adolescents with type 1 diabetes
  4. Is oxytocin related to psychiatric symptoms in adolescents with obesity?
  5. Associations between body mass index and sleep duration in Brazilian children and adolescents: the moderating role of screen time
  6. The transfer of care experience in young adults with type 1 diabetes
  7. Assessing the efficacy of a hybrid closed loop system in a racial-ethnic minority cohort of children and adolescents with type 1 diabetes
  8. Do children with type 1 diabetes mellitus remain protected against hepatitis B?
  9. Influence of excess weight on metabolic risk factors in Argentinian preschool children
  10. Causal associations between childhood obesity and delayed puberty or height: a bidirectional two-sample Mendelian randomization study
  11. Differentiating true precocious puberty and puberty variants in consecutive 275 girls: a single center experience
  12. Development of bone mineral density and content in children with cerebral palsy: a retrospective, longitudinal study
  13. Insights in non-CAH pediatric primary adrenal insufficiency: a single-center experience from India
  14. Effect of empagliflozin treatment on laboratory and clinical findings of patients with glycogen storage disease type Ib: first study from Türkiye
  15. Clinical and laboratory characteristics of propionic acidemia in a Turkish cohort
  16. Short Communication
  17. The impact of the COVID-19 pandemic on DKA severity in Black and White pediatric patients
  18. Case Reports
  19. Evinacumab as an adjunct to lipid apheresis in an infant with homozygous familial hypercholesterolemia
  20. DNA ligase IV deficiency identified in a patient with hypergonadotropic hypogonadism: a case report
  21. Moebius syndrome and hypopituitarism: a case of multiple pituitary hormone deficiency and revision of the literature
https://doi.org/10.1515/jpem-2024-0302
Schlagwörter für diesen Artikel
sleep; sedentary behavior; body composition; children; adolescents

Artikel in diesem Heft

  1. Frontmatter
  2. Original Articles
  3. Diabetes distress, depression, and future glycemic control among adolescents with type 1 diabetes
  4. Is oxytocin related to psychiatric symptoms in adolescents with obesity?
  5. Associations between body mass index and sleep duration in Brazilian children and adolescents: the moderating role of screen time
  6. The transfer of care experience in young adults with type 1 diabetes
  7. Assessing the efficacy of a hybrid closed loop system in a racial-ethnic minority cohort of children and adolescents with type 1 diabetes
  8. Do children with type 1 diabetes mellitus remain protected against hepatitis B?
  9. Influence of excess weight on metabolic risk factors in Argentinian preschool children
  10. Causal associations between childhood obesity and delayed puberty or height: a bidirectional two-sample Mendelian randomization study
  11. Differentiating true precocious puberty and puberty variants in consecutive 275 girls: a single center experience
  12. Development of bone mineral density and content in children with cerebral palsy: a retrospective, longitudinal study
  13. Insights in non-CAH pediatric primary adrenal insufficiency: a single-center experience from India
  14. Effect of empagliflozin treatment on laboratory and clinical findings of patients with glycogen storage disease type Ib: first study from Türkiye
  15. Clinical and laboratory characteristics of propionic acidemia in a Turkish cohort
  16. Short Communication
  17. The impact of the COVID-19 pandemic on DKA severity in Black and White pediatric patients
  18. Case Reports
  19. Evinacumab as an adjunct to lipid apheresis in an infant with homozygous familial hypercholesterolemia
  20. DNA ligase IV deficiency identified in a patient with hypergonadotropic hypogonadism: a case report
  21. Moebius syndrome and hypopituitarism: a case of multiple pituitary hormone deficiency and revision of the literature
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