Application of the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres: a study protocol
Introduction Globally, children do not eat enough core foods, with vegetable intakes persistently low. Early life is critical for establishing vegetable acceptance and intake. Increased usage of formal childcare has led to the importance of childcare settings shaping children’s food intake. This stu...
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| Format: | Article |
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BMJ Publishing Group
2021-12-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/11/12/e047618.full |
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| author | Rebecca K Golley Shabnam Kashef Dorota Zarnowiecki Jennifer C Arguelles David N Cox Astrid AM Poelman Maeva O Cochet-Broch |
| author_facet | Rebecca K Golley Shabnam Kashef Dorota Zarnowiecki Jennifer C Arguelles David N Cox Astrid AM Poelman Maeva O Cochet-Broch |
| author_sort | Rebecca K Golley |
| collection | DOAJ |
| description | Introduction Globally, children do not eat enough core foods, with vegetable intakes persistently low. Early life is critical for establishing vegetable acceptance and intake. Increased usage of formal childcare has led to the importance of childcare settings shaping children’s food intake. This study will use the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres.Methods and analysis The preparation phase will use existing literature and best practice guidelines to develop three initiatives aiming to: (1) increase vegetable provision at mealtimes, (2) deliver a vegetable-focused sensory curriculum and (3) use supportive mealtime practices encouraging children’s tasting of vegetables. The optimisation phase (N=32 centres) will use a 12-week, eight-condition factorial experiment to test main and synergistic effects of the initiatives. The optimum combination of initiatives producing the largest increase in vegetable intake will be identified. The evaluation phase (N=20 centres) will test the effectiveness of the optimised package using a 12-week waitlist randomised controlled trial. Primary outcomes are children’s vegetable intake and food group intake at long day care. Secondary outcomes are menu guideline compliance, cook and educator knowledge and skills, and reach. Process evaluation will include fidelity, acceptability, barriers and facilitators, and compatibility with practice. Repeated measures ANOVA with interaction effects (optimisation phase) and linear mixed modelling (evaluation phase) will test effects of the initiatives on vegetable intake.Ethics and dissemination This study has received ethics approval from the Flinders University Research Ethics Committee (Project No: 1873) for the optimisation phase. Approval for the evaluation phase will be obtained following completion of optimisation phase. Findings will be disseminated to stakeholders, including long day care centres and childcare organisations; and to researchers via peer-reviewed journals and conferences.Trial registration numbers ACTRN12620001301954, ACTRN12620001323910p. |
| format | Article |
| id | doaj-art-1c06878a10e545e78079cb835a535f61 |
| institution | Kabale University |
| issn | 2044-6055 |
| language | English |
| publishDate | 2021-12-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj-art-1c06878a10e545e78079cb835a535f612024-12-08T15:05:08ZengBMJ Publishing GroupBMJ Open2044-60552021-12-01111210.1136/bmjopen-2020-047618Application of the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres: a study protocolRebecca K Golley0Shabnam Kashef1Dorota Zarnowiecki2Jennifer C Arguelles3David N Cox4Astrid AM Poelman5Maeva O Cochet-Broch6College of Nursing and Health Sciences, Flinders University Caring Futures Institute, Adelaide, South Australia, AustraliaCollege of Nursing and Health Sciences, Flinders University, Bedford Park, South Australia, AustraliaCaring Futures Institute, College of Nursing and Health Sciences, Flinders University, Adelaide, South Australia, AustraliaNutrition Australia (Victoria), Carlton, South Australia, AustraliaCommonwealth Scientific and Industrial Research Organisation (CSIRO) Food and Nutrition, Adelaide, South Australia, AustraliaCommonwealth Scientific and Industrial Research Organisation (CSIRO) Health & Biosecurity, North Ryde, New South Wales, AustraliaCommonwealth Scientific and Industrial Research Organisation (CSIRO) Agriculture and Food, North Ryde, New South Wales, AustraliaIntroduction Globally, children do not eat enough core foods, with vegetable intakes persistently low. Early life is critical for establishing vegetable acceptance and intake. Increased usage of formal childcare has led to the importance of childcare settings shaping children’s food intake. This study will use the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres.Methods and analysis The preparation phase will use existing literature and best practice guidelines to develop three initiatives aiming to: (1) increase vegetable provision at mealtimes, (2) deliver a vegetable-focused sensory curriculum and (3) use supportive mealtime practices encouraging children’s tasting of vegetables. The optimisation phase (N=32 centres) will use a 12-week, eight-condition factorial experiment to test main and synergistic effects of the initiatives. The optimum combination of initiatives producing the largest increase in vegetable intake will be identified. The evaluation phase (N=20 centres) will test the effectiveness of the optimised package using a 12-week waitlist randomised controlled trial. Primary outcomes are children’s vegetable intake and food group intake at long day care. Secondary outcomes are menu guideline compliance, cook and educator knowledge and skills, and reach. Process evaluation will include fidelity, acceptability, barriers and facilitators, and compatibility with practice. Repeated measures ANOVA with interaction effects (optimisation phase) and linear mixed modelling (evaluation phase) will test effects of the initiatives on vegetable intake.Ethics and dissemination This study has received ethics approval from the Flinders University Research Ethics Committee (Project No: 1873) for the optimisation phase. Approval for the evaluation phase will be obtained following completion of optimisation phase. Findings will be disseminated to stakeholders, including long day care centres and childcare organisations; and to researchers via peer-reviewed journals and conferences.Trial registration numbers ACTRN12620001301954, ACTRN12620001323910p.https://bmjopen.bmj.com/content/11/12/e047618.full |
| spellingShingle | Rebecca K Golley Shabnam Kashef Dorota Zarnowiecki Jennifer C Arguelles David N Cox Astrid AM Poelman Maeva O Cochet-Broch Application of the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres: a study protocol BMJ Open |
| title | Application of the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres: a study protocol |
| title_full | Application of the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres: a study protocol |
| title_fullStr | Application of the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres: a study protocol |
| title_full_unstemmed | Application of the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres: a study protocol |
| title_short | Application of the multiphase optimisation strategy to develop, optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2-to-5-year-old children’s vegetable intake in long day care centres: a study protocol |
| title_sort | application of the multiphase optimisation strategy to develop optimise and evaluate the effectiveness of a multicomponent initiative package to increase 2 to 5 year old children s vegetable intake in long day care centres a study protocol |
| url | https://bmjopen.bmj.com/content/11/12/e047618.full |
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