Implementation, mechanisms of impact and key contextual factors involved in outcomes of the Modification of Diet, Exercise and Lifestyle (MODEL) randomised controlled trial in Australian adults: protocol for a mixed-method process evaluation

Anokye, Reindolf, Radavelli-Bagatini, Simone, Bondonno, Catherine P., Sim, Marc, Blekkenhorst, Lauren C., Connolly, Emily, Bondonno, Nicola P., Schousboe, John T., Woodman, Richard, Zhu, Kun, Szulc, Pawel, Jackson, Ben, Dimmock, James, Schlaich, Markus P., Cox, Kay L., Kiel, Douglas P., Lim, Wai H., Devine, Amanda, Thompson, Peter L., Gianoudis, Jenny, De Ross, Belinda, Daly, Robin M., Hodgson, Jonathan M., Lewis, Joshua R., and Stanley, Mandy (2020) Implementation, mechanisms of impact and key contextual factors involved in outcomes of the Modification of Diet, Exercise and Lifestyle (MODEL) randomised controlled trial in Australian adults: protocol for a mixed-method process evaluation. BMJ Open, 10 (11). 036395.

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Abstract

Introduction: The Modification of Diet, Exercise and Lifestyle (MODEL) study aims to examine the impact of providing visualisation and pictorial representation of advanced structural vascular disease (abdominal aortic calcification), on ‘healthful’ improvements to diet and lifestyle. This paper reports the protocol for the process evaluation for the MODEL study.

Methods and analysis: The overall aim of the process evaluation is to understand the processes that took place during participation in the MODEL study trial and which elements were effective or ineffective for influencing 'healthful' behavioural change, and possible ways of improvement to inform wider implementation strategies. A mixed-method approach will be employed with the use of structured questionnaires and semistructured in-depth interviews. All 200 participants enrolled in the trial will undertake the quantitative component of the study and maximum variation sampling will be used to select a subsample for the qualitative component. The sample size for the qualitative component will be determined based on analytical saturation. Interviews will be digitally recorded and transcribed verbatim. Qualitative data will be analysed thematically and reported according to the Consolidated Criteria for Reporting Qualitative Research (COREQ) guidelines.

Item ID: 65302
Item Type: Article (Scholarly Work)
ISSN: 2044-6055
Copyright Information: This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial.
Funders: National Heart Foundation of Australia (NHF), National Institute of Arthritis, Musculoskeletal and Skin Diseases (NIAMSD), National Health and Medical Research Council (NHMRC), Australian Government (AG)
Projects and Grants: NHF Future leader fellowship 102817, NIAMSD R01 AR 41398, NHMRC Senior Research Fellowship ID 1116973, NHMRC Emerging Leadership Investigator Grant ID: 1172987, NHF Post-Doctoral Research Fellowship ID: 102498, AG Research Training Program Scholarship (International)
Date Deposited: 15 Dec 2020 19:01
FoR Codes: 46 INFORMATION AND COMPUTING SCIENCES > 4606 Distributed computing and systems software > 460606 Energy-efficient computing @ 50%
42 HEALTH SCIENCES > 4206 Public health > 420603 Health promotion @ 50%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920103 Cardiovascular System and Diseases @ 100%
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