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Published in: BMC Public Health 1/2015

Open Access 01-12-2015 | Research article

Are associations between electronic media use and BMI different across levels of physical activity?

Authors: Ole Melkevik, Ellen Haug, Mette Rasmussen, Anne Siri Fismen, Bente Wold, Alberto Borraccino, Erik Sigmund, Robert Balazsi, Jens Bucksch, Jo Inchley, Margarida Gaspar de Matos, Oddrun Samdal

Published in: BMC Public Health | Issue 1/2015

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Abstract

Background

The use of electronic media has been found to be a risk factor for higher BMI and for being overweight. Physical activity has been found to be associated with lower BMI and lower risk for being overweight. Little is known about whether the associations between physical activity and electronic media use are additive or interactive in predicting BMI and risk for overweight among adolescents.

Methods

The data used in this study stem from the 2009/2010 survey of “Health Behaviour in School-aged Children (HBSC) study: A WHO Cross-National Survey. The sample consisted of 107184 13 and 15 year students from 30 different countries. Multilevel regression models were used to produce the presented estimates.

Results

Overall, 18% of boys and 11% of girls were classified as overweight. EM use was found to be associated with increased BMI z-scores and odds for overweight among both boys and girls who did not comply with physical activity guidelines. Among physically active adolescents, EM was found to be significantly associated with BMI or odds for overweight among girls, but not among boys.

Conclusion

While the usage of EM appear to be inconsequential for BMI and the risk of overweight among physically active boys, we find evidence indicating that EM use is associated with BMI and risk for overweight among girls, including those who report complying with MVPA guidelines.
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Metadata
Title
Are associations between electronic media use and BMI different across levels of physical activity?
Authors
Ole Melkevik
Ellen Haug
Mette Rasmussen
Anne Siri Fismen
Bente Wold
Alberto Borraccino
Erik Sigmund
Robert Balazsi
Jens Bucksch
Jo Inchley
Margarida Gaspar de Matos
Oddrun Samdal
Publication date
01-12-2015
Publisher
BioMed Central
Published in
BMC Public Health / Issue 1/2015
Electronic ISSN: 1471-2458
DOI
https://doi.org/10.1186/s12889-015-1810-6

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