Cassandra S Diep1, Tzu-An Chen2, Vanessa F Davies3, Janice C Baranowski2, Tom Baranowski2. 1. US Department of Agriculture/Agricultural Research Service Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX; Department of Family and Community Medicine, Baylor College of Medicine, Houston, TX. Electronic address: cdiep@bcm.edu. 2. US Department of Agriculture/Agricultural Research Service Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX. 3. US Department of Agriculture/Agricultural Research Service Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX; Department of Public Health, Federal University of Santa Catarina, Florianópolis, Brazil.
Abstract
OBJECTIVE: To test the hypotheses that interventions clearly based on theory, multiple theories, or a formal intervention planning process will be more effective in changing fruit and vegetable consumption among children than interventions with no behavioral theoretical foundation. DESIGN: Systematic review and meta-analysis. SETTING: Identification of articles in PubMed, PsycInfo, Medline, Cochrane Collaborative database, and existing literature reviews and meta-analyses. PARTICIPANTS: Children aged 2-18 years. INTERVENTIONS: Change in fruit and/or vegetable consumption in dietary change interventions. METHODS: Meta-analysis, meta-regression analysis, and summary reporting for articles. CONCLUSIONS AND IMPLICATIONS: Predicating an intervention on behavioral theory had a small to moderate enhancement (P < .001) of outcome effectiveness. Differences in mean Hedges' g effect sizes between theory and non-theory interventions were 0.232 for fruit, 0.043 for vegetables, and 0.333 for fruit and vegetables combined. There was mixed support, however, for enhanced dietary change with multiple theories or a formal planning process. After controlling for study quality, theory use was related only to vegetable consumption (β = 0.373; P < .001). More research is needed on theory's influences on dietary behaviors to guide future interventions among children. More research is also needed to identify what may be effective practical- or experience-based procedures that complement theory, to incorporate into interventions.
OBJECTIVE: To test the hypotheses that interventions clearly based on theory, multiple theories, or a formal intervention planning process will be more effective in changing fruit and vegetable consumption among children than interventions with no behavioral theoretical foundation. DESIGN: Systematic review and meta-analysis. SETTING: Identification of articles in PubMed, PsycInfo, Medline, Cochrane Collaborative database, and existing literature reviews and meta-analyses. PARTICIPANTS: Children aged 2-18 years. INTERVENTIONS: Change in fruit and/or vegetable consumption in dietary change interventions. METHODS: Meta-analysis, meta-regression analysis, and summary reporting for articles. CONCLUSIONS AND IMPLICATIONS: Predicating an intervention on behavioral theory had a small to moderate enhancement (P < .001) of outcome effectiveness. Differences in mean Hedges' g effect sizes between theory and non-theory interventions were 0.232 for fruit, 0.043 for vegetables, and 0.333 for fruit and vegetables combined. There was mixed support, however, for enhanced dietary change with multiple theories or a formal planning process. After controlling for study quality, theory use was related only to vegetable consumption (β = 0.373; P < .001). More research is needed on theory's influences on dietary behaviors to guide future interventions among children. More research is also needed to identify what may be effective practical- or experience-based procedures that complement theory, to incorporate into interventions.
Authors: Laura A Dwyer; Niall Bolger; Jean-Philippe Laurenceau; Heather Patrick; April Y Oh; Linda C Nebeling; Erin Hennessy Journal: Am J Prev Med Date: 2017-06 Impact factor: 5.043
Authors: Carol Byrd-Bredbenner; Jennifer Martin-Biggers; Mallory Koenings; Virginia Quick; Nobuko Hongu; John Worobey Journal: JMIR Res Protoc Date: 2017-04-25
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