Journal article

Cross-sectional and prospective mediating effects of dietary intake on the relationship between sedentary behaviour and body mass index in adolescents

Elly A Fletcher, Karen E Lamb, Sarah A McNaughton, Sarah P Garnett, David W Dunstan, Louise A Baur, Jo Salmon

BMC PUBLIC HEALTH | BMC | Published : 2017

Abstract

BACKGROUND: Cross-sectional evidence suggests TV viewing, but not objectively-measured sedentary time or bouts of sedentary time, is consistently associated with body mass index (BMI) in adolescents. However, it is unclear whether dietary intake is a potential mediator of these relationships. The aim of this study was to explore the cross-sectional and prospective mediating effects of dietary intake on the association of sedentary behaviour with BMI z-score (zBMI) in a cohort of Australian adolescents. METHODS: Cross-sectional and prospective analyses were conducted in adolescents aged 12-15 years participating in the 2002/03 (baseline) and 2004/05 (follow-up) Nepean Growing Up Study. The in..

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Grants

Awarded by Children's Hospital at Westmead Grant Research Scheme, a National Health and Medical Research Council


Awarded by NHMRC


Awarded by ARC


Awarded by National Health & Medical Research Council, Centre of Research Excellence


Funding Acknowledgements

The Nepean longitudinal study was funded by The Children's Hospital at Westmead Grant Research Scheme, a National Health and Medical Research Council Project Grant #206501 and Meat and Livestock Australia. SAM is funded by an NHMRC Career Development Fellowship Level 2, ID1104636 and was previously funded by an ARC Future Fellowship (2011-2015, FT100100581). DWD is funded by NHMRC Senior Research Fellowship (APP1078360). JS is funded by a NHMRC Principal Research Fellowship (APP1026216). This work was also partially funded by an OIS grant from the Victorian State Government and a National Health & Medical Research Council, Centre of Research Excellence grant (APP1057608).