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Protocol for the process evaluation of a complex, statewide intervention to reduce salt intake in Victoria, Australia

Trieu, Kathy, Jan, Stephen, Woodward, Mark, Grimes, Carley, Bolam, Bruce, Nowson, Caryl, Reimers, Jenny, Davidson, Chelsea and Webster, Jacqui 2018, Protocol for the process evaluation of a complex, statewide intervention to reduce salt intake in Victoria, Australia, Nutrients, vol. 10, no. 8, pp. 1-12, doi: 10.3390/nu10080998.

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Title Protocol for the process evaluation of a complex, statewide intervention to reduce salt intake in Victoria, Australia
Author(s) Trieu, Kathy
Jan, Stephen
Woodward, Mark
Grimes, CarleyORCID iD for Grimes, Carley orcid.org/0000-0002-9123-1888
Bolam, Bruce
Nowson, CarylORCID iD for Nowson, Caryl orcid.org/0000-0001-6586-7965
Reimers, Jenny
Davidson, Chelsea
Webster, Jacqui
Journal name Nutrients
Volume number 10
Issue number 8
Start page 1
End page 12
Total pages 12
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2018-07
ISSN 2072-6643
Keyword(s) sodium reduction
public health nutrition
hypertension
process evaluation
disease prevention
population interventions
Summary Systematic reviews of trials consistently demonstrate that reducing salt intake lowers blood pressure. However, there is limited evidence on how interventions function in the real world to achieve sustained population-wide salt reduction. Process evaluations are crucial for understanding how and why an intervention resulted in its observed effect in that setting, particularly for complex interventions. This project presents the detailed protocol for a process evaluation of a statewide strategy to lower salt intake in Victoria, Australia. We describe the pragmatic methods used to collect and analyse data on six process evaluation dimensions: reach, dose or adoption, fidelity, effectiveness, context and cost, informed by Linnan and Steckler’s framework and RE-AIM. Data collection methods include routinely collected administrative data; surveys of processed foods, the population, food industry and organizations; targeted campaign evaluation and semi-structured interviews. Quantitative and qualitative data will be triangulated to provide validation or context for one another. This process evaluation will contribute new knowledge about what components of the intervention are important to salt reduction strategies and how the interventions cause reduced salt intake, to inform the transferability of the program to other Australian states and territories. This protocol can be adapted for other population-based, complex, disease prevention interventions.
Language eng
DOI 10.3390/nu10080998
Field of Research 1111 Nutrition And Dietetics
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2017, The Author(s)
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30112713

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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.