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http://dx.doi.org/10.4163/jnh.2021.54.5.515

Effectiveness of nutrition education intervention focusing on fruits and vegetables in children aged six years and under: a systematic review and meta-analysis  

An, Sumin (Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University)
Ahn, Hyejin (Department of Gerontology (AgeTech-Service Convergence Major), Kyung Hee University)
Woo, Jeonghyeon (Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University)
Yun, Young (Food & Nutrition Division, National Institute of Agricultural Sciences)
Park, Yoo Kyoung (Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University)
Publication Information
Journal of Nutrition and Health / v.54, no.5, 2021 , pp. 515-533 More about this Journal
Abstract
Purpose: A systematic review and meta-analysis of nutrition educational intervention studies was performed to assess the association between nutrition education intervention and fruit & vegetable (F&V) preferences and nutrition knowledge in preschool children. Methods: The relevant studies of nutrition education intervention and F&V preferences and nutrition knowledge published from January 2000 to June 2020 were located using PubMed, Web of Science, Cochrane Library, Research Information Sharing Service, Korean Studies Information Service System databases, and lists of references. A random-effects meta-analysis was conducted to estimate the standardized mean difference with a 95% confidence interval (CI). Subgroup analyses were performed to identify the association between nutrition education and F&V preferences and nutrition knowledge. Results: The results show that the effect sizes (ES) of F&V preferences and nutrition knowledge of preschool children were 0.31(95% CI, 0.23, 0.39), and 1.69(95% CI, 1.27, 2.12), respectively. The result of subgroup analysis, nutrition education focused on F&V (F&V preferences, ES: 0.32; nutrition knowledge, ES: 2.09) presented a slightly larger effect than general nutrition education (F&V preferences, ES: 0.26; nutrition knowledge, ES: 1.62). As for the type of exposure to F&V, direct exposure education (F&V preferences, ES: 0.40) had a greater effect than indirect exposure (F&V preferences, ES: 0.26). This meta-analysis showed that nutrition education intervention had positive effects on the F&V preferences and nutrition knowledge in preschool children. Conclusion: In conclusion, from the meta-analysis and subsequent subgroup analysis, we found that varied types of nutrition education intervention had varying effects on F&V preferences and nutrition knowledge in preschool children.
Keywords
fruit; vegetables; nutrition education intervention; preschool children; meta-analysis;
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