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High sitting time or obesity: Which came first? Bidirectional association in a longitudinal study of 31,787 Australian adults

OBJECTIVE: Evidence on the direction of the association between sitting time and obesity is limited. The prospective associations between baseline total sitting time and subsequent changes in body mass index (BMI), and baseline BMI and subsequent changes in sitting time were examined. METHODS: BMI,...

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Autores principales: Pedisic, Zeljko, Grunseit, Anne, Ding, Ding, Chau, Josephine Y, Banks, Emily, Stamatakis, Emmanuel, Jalaludin, Bin B, Bauman, Adrian E
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BlackWell Publishing Ltd 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4265269/
https://www.ncbi.nlm.nih.gov/pubmed/24943057
http://dx.doi.org/10.1002/oby.20817
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author Pedisic, Zeljko
Grunseit, Anne
Ding, Ding
Chau, Josephine Y
Banks, Emily
Stamatakis, Emmanuel
Jalaludin, Bin B
Bauman, Adrian E
author_facet Pedisic, Zeljko
Grunseit, Anne
Ding, Ding
Chau, Josephine Y
Banks, Emily
Stamatakis, Emmanuel
Jalaludin, Bin B
Bauman, Adrian E
author_sort Pedisic, Zeljko
collection PubMed
description OBJECTIVE: Evidence on the direction of the association between sitting time and obesity is limited. The prospective associations between baseline total sitting time and subsequent changes in body mass index (BMI), and baseline BMI and subsequent changes in sitting time were examined. METHODS: BMI, from self-reported height and weight, and a single-item measure of sitting time were ascertained at two time points (3.4 ± 0.96 years apart) in a prospective questionnaire-based cohort of 31,787 Australians aged 45–65 years without severe physical limitations. RESULTS: In a fully adjusted model, baseline obesity was associated with increased sitting time among all participants (adjusted odds ratio [aOR] = 1.20 [95% CI, 1.11-1.30]; P < 0.001) and in most subgroups. The association was significant among those who were sitting <4 hours/day (aOR = 1.24 [95% CI, 1.07-1.44]; P = 0.004) and 4–8 hours/day at baseline (aOR=1.18 [95% CI, 1.06-1.32]; P = 0.003), but not in the high sitting groups (P = 0.111 and 0.188 for 8–11 and ≥11 sitting hours/day, respectively). Nonsignificant and inconsistent results were observed for the association between baseline sitting time and subsequent change in BMI. CONCLUSIONS: Our findings support the hypothesis that obesity may lead to a subsequent increase in total sitting time, but the association in the other direction is unclear.
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spelling pubmed-42652692014-12-23 High sitting time or obesity: Which came first? Bidirectional association in a longitudinal study of 31,787 Australian adults Pedisic, Zeljko Grunseit, Anne Ding, Ding Chau, Josephine Y Banks, Emily Stamatakis, Emmanuel Jalaludin, Bin B Bauman, Adrian E Obesity (Silver Spring) Brief Cutting Edge Reports OBJECTIVE: Evidence on the direction of the association between sitting time and obesity is limited. The prospective associations between baseline total sitting time and subsequent changes in body mass index (BMI), and baseline BMI and subsequent changes in sitting time were examined. METHODS: BMI, from self-reported height and weight, and a single-item measure of sitting time were ascertained at two time points (3.4 ± 0.96 years apart) in a prospective questionnaire-based cohort of 31,787 Australians aged 45–65 years without severe physical limitations. RESULTS: In a fully adjusted model, baseline obesity was associated with increased sitting time among all participants (adjusted odds ratio [aOR] = 1.20 [95% CI, 1.11-1.30]; P < 0.001) and in most subgroups. The association was significant among those who were sitting <4 hours/day (aOR = 1.24 [95% CI, 1.07-1.44]; P = 0.004) and 4–8 hours/day at baseline (aOR=1.18 [95% CI, 1.06-1.32]; P = 0.003), but not in the high sitting groups (P = 0.111 and 0.188 for 8–11 and ≥11 sitting hours/day, respectively). Nonsignificant and inconsistent results were observed for the association between baseline sitting time and subsequent change in BMI. CONCLUSIONS: Our findings support the hypothesis that obesity may lead to a subsequent increase in total sitting time, but the association in the other direction is unclear. BlackWell Publishing Ltd 2014-10 2014-06-19 /pmc/articles/PMC4265269/ /pubmed/24943057 http://dx.doi.org/10.1002/oby.20817 Text en Copyright © 2014 The Obesity Society http://creativecommons.org/licenses/by-nc/3.0/ This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Brief Cutting Edge Reports
Pedisic, Zeljko
Grunseit, Anne
Ding, Ding
Chau, Josephine Y
Banks, Emily
Stamatakis, Emmanuel
Jalaludin, Bin B
Bauman, Adrian E
High sitting time or obesity: Which came first? Bidirectional association in a longitudinal study of 31,787 Australian adults
title High sitting time or obesity: Which came first? Bidirectional association in a longitudinal study of 31,787 Australian adults
title_full High sitting time or obesity: Which came first? Bidirectional association in a longitudinal study of 31,787 Australian adults
title_fullStr High sitting time or obesity: Which came first? Bidirectional association in a longitudinal study of 31,787 Australian adults
title_full_unstemmed High sitting time or obesity: Which came first? Bidirectional association in a longitudinal study of 31,787 Australian adults
title_short High sitting time or obesity: Which came first? Bidirectional association in a longitudinal study of 31,787 Australian adults
title_sort high sitting time or obesity: which came first? bidirectional association in a longitudinal study of 31,787 australian adults
topic Brief Cutting Edge Reports
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4265269/
https://www.ncbi.nlm.nih.gov/pubmed/24943057
http://dx.doi.org/10.1002/oby.20817
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