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Mediators of longitudinal associations between television viewing and eating behaviours in adolescents

Pearson, Natalie, Ball, Kylie and Crawford, David 2011, Mediators of longitudinal associations between television viewing and eating behaviours in adolescents, International journal of behavioral nutrition and physical activity, vol. 8, Article no. 23, pp. 1-9.

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Title Mediators of longitudinal associations between television viewing and eating behaviours in adolescents
Author(s) Pearson, Natalie
Ball, Kylie
Crawford, David
Journal name International journal of behavioral nutrition and physical activity
Volume number 8
Season Article no. 23
Start page 1
End page 9
Total pages 9
Publisher BioMed Central
Place of publication London, England
Publication date 2011-03-30
ISSN 1479-5868
Keyword(s) television
eating behaviours
adolescents
Summary Background: Television viewing has been associated with poor eating behaviours in adolescents. Changing unhealthy eating behaviours is most likely to be achieved by identifying and targeting factors shown to mediate the association between these behaviours. However, little is known about the mediators of the associations between television viewing and eating behaviours. The aim of this study was to examine mediators of the longitudinal associations between television viewing (TV) and eating behaviours among Australian adolescents.
Method: Eating behaviours were assessed using a web-based survey completed by a community-based sample of 1729 adolescents from years 7 and 9 of secondary schools in Victoria, Australia, at baseline (2004-2005) and two years later. TV viewing and the potential mediators (snacking while watching TV and perceived value of TV viewing) were assessed via the web-based survey at baseline.
Results: Adolescents who watched more than two hours of TV/day had higher intakes of energy-dense snacks and beverages, and lower intakes of fruit two years later. Furthermore, the associations between TV viewing and consumption of energy-dense snacks, energy-dense drinks and fruit were mediated by snacking while watching TV. Perceived value of TV viewing mediated the association between TV viewing and consumption of energy-dense snacks, beverages and fruit.
Conclusion: Snacking while watching TV and perceived value of TV viewing mediated the longitudinal association between TV viewing and eating behaviours among adolescents. The efficacy of methods to reduce TV viewing, change snacking habits while watching TV, and address the values that adolescents place on TV viewing should be examined in an effort to promote healthy eating among adolescents.
Notes This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Language eng
Field of Research 111706 Epidemiology
Socio Economic Objective 920401 Behaviour and Health
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2011, Pearson et al; licensee BioMed Central Ltd.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30043907

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.