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Evaluation of a long day care intervention targeting the mealtime environment and curriculum to increase children's vegetable intake: a cluster randomised controlled trial using the multiphase optimisation strategy framework.


ABSTRACT:

Objective

To determine the reach, adoption, implementation and effectiveness of an intervention to increase children's vegetable intake in long day care (LDC).

Design

A 12-week pragmatic cluster randomised controlled trial, informed by the multiphase optimisation strategy (MOST), targeting the mealtime environment and curriculum. Children's vegetable intake and variety was measured at follow-up using a modified Short Food Survey for early childhood education and care and analysed using a two-part mixed model for non-vegetable and vegetable consumers. Outcome measures were based on the RE-AIM framework.

Setting

Australian LDC centres.

Participants

Thirty-nine centres, 120 educators and 719 children at follow-up.

Results

There was no difference between intervention and waitlist control groups in the likelihood of consuming any vegetables when compared with non-vegetable consumers for intake (OR = 0·70, (95 % CI 0·34-1·43), P = 0·32) or variety (OR = 0·73 (95 % CI 0·40-1·32), P = 0·29). Among vegetable consumers (n 652), there was no difference between groups in vegetable variety (exp(b): 1·07 (95 % CI:0·88-1·32, P = 0·49) or vegetable intake (exp(b): 1·06 (95 % CI: 0·78, 1·43)), P = 0·71) with an average of 1·51 (95 % CI 1·20-1·82) and 1·40 (95 % CI 1·08-1·72) serves of vegetables per day in the intervention and control group, respectively. Intervention educators reported higher skills for promoting vegetables at mealtimes, and knowledge and skills for teaching the curriculum, than control (all P < 0·001). Intervention fidelity was moderate (n 16/20 and n 15/16 centres used the Mealtime environment and Curriculum, respectively) with good acceptability among educators. The intervention reached 307/8556 centres nationally and was adopted by 22 % eligible centres.

Conclusions

The pragmatic self-delivered online intervention positively impacted educator's knowledge and skills and was considered acceptable and feasible. Intervention adaptations, using the MOST cyclic approach, could improve intervention impact on children' vegetable intake.

SUBMITTER: Morgillo S 

PROVIDER: S-EPMC10966837 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature

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Publications

Evaluation of a long day care intervention targeting the mealtime environment and curriculum to increase children's vegetable intake: a cluster randomised controlled trial using the multiphase optimisation strategy framework.

Morgillo Samantha S   Bell Lucinda K LK   Gardner Claire C   Kashef Shabnam S   Stafford Karen K   Zarnowiecki Dorota D   Poelman Astrid Am AA   Cochet-Broch Maeva O MO   Johnson Brittany J BJ   Gulyani Aarti A   Cox David N DN   Golley Rebecca K RK  

Public health nutrition 20240226 1


<h4>Objective</h4>To determine the reach, adoption, implementation and effectiveness of an intervention to increase children's vegetable intake in long day care (LDC).<h4>Design</h4>A 12-week pragmatic cluster randomised controlled trial, informed by the multiphase optimisation strategy (MOST), targeting the mealtime environment and curriculum. Children's vegetable intake and variety was measured at follow-up using a modified Short Food Survey for early childhood education and care and analysed  ...[more]

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