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Arch Public Health. 2016 Apr 25;74:16. doi: 10.1186/s13690-016-0127-y. eCollection 2016.

Healthy together Victoria and childhood obesity-a methodology for measuring changes in childhood obesity in response to a community-based, whole of system cluster randomized control trial.

Author information

1
World Health Organization's Collaborating Centre for Obesity Prevention, Deakin Population Health, Deakin University, Geelong, Australia.
2
World Health Organization's Collaborating Centre for Obesity Prevention, Deakin Population Health, Deakin University, Geelong, Australia ; School of Health and Social Development, Deakin University, Melbourne, Australia.
3
Formerly Department of Health & Human Services, Population Health and Prevention Strategy, ᅟ, VIC Australia.
4
IMPACT Strategic Research Centre, Deakin University, Geelong, Australia ; Department of Psychiatry, The University of Melbourne, Melbourne, Australia ; Centre for Adolescent Health, Murdoch Children's Research Institute, Melbourne, Australia ; Black Dog Institute, Sydney, Australia.
5
World Health Organization's Collaborating Centre for Obesity Prevention, Deakin Population Health, Deakin University, Geelong, Australia ; School of Medicine, Deakin University, Geelong, Australia.
6
World Health Organization's Collaborating Centre for Obesity Prevention, Deakin Population Health, Deakin University, Geelong, Australia ; School of Population Health, The University of Auckland, Auckland, New Zealand.

Abstract

BACKGROUND:

Healthy Together Victoria (HTV) - a complex 'whole of system' intervention, including an embedded cluster randomized control trial, to reduce chronic disease by addressing risk factors (physical inactivity, poor diet quality, smoking and harmful alcohol use) among children and adults in selected communities in Victoria, Australia (Healthy Together Communities).

OBJECTIVES:

To describe the methodology for: 1) assessing changes in the prevalence of measured childhood obesity and associated risks between primary and secondary school students in HTV communities, compared with comparison communities; and 2) assessing community-level system changes that influence childhood obesity in HTC and comparison communities.

METHODS:

Twenty-four geographically bounded areas were randomized to either prevention or comparison (2012). A repeat cross-sectional study utilising opt-out consent will collect objectively measured height, weight, waist and self-reported behavioral data among primary [Grade 4 (aged 9-10y) and Grade 6 (aged 11-12y)] and secondary [Grade 8 (aged 13-14y) and Grade 10 (aged 15-16y)] school students (2014 to 2018). Relationships between measured childhood obesity and system causes, as defined in the Foresight obesity systems map, will be assessed using a range of routine and customised data.

CONCLUSION:

This research methodology describes the beginnings of a state-wide childhood obesity monitoring system that can evolve to regularly inform progress on reducing obesity, and situate these changes in the context of broader community-level system change.

KEYWORDS:

Community-based interventions; Evaluation; Systems

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