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  • 1.
    Lehto, Elviira
    et al.
    Folkhälsan Research Center, Helsinki, Finland.
    Ray, Carola
    Folkhälsan Research Center, Helsinki, Finland.
    Yngve, Agneta
    Örebro universitet, Restaurang- och hotellhögskolan.
    Thorsdottir, Inga
    Unit for Nutrition Research, Landspitali-University Hospital, University of Iceland, Reykjavik, Iceland; Faculty of Food Science and Human Nutrition, School of Health Sciences, University of Iceland, Reykjavik, Iceland.
    Roos, Eva
    Folkhälsan Research Center, Helsinki, Finland.
    The ones with lowest fruit and vegetable intake benefitted of the intervention only moderately2015Inngår i: Annals of Nutrition and Metabolism, ISSN 0250-6807, E-ISSN 1421-9697, Vol. 67, nr Suppl. 1, s. 360-361Artikkel i tidsskrift (Annet vitenskapelig)
    Abstract [en]

    Introduction: Infrequent fruit and vegetable (FV) intake is especially common among children with low parental educational level (PEL) and among boys.

    Objectives: Our aim was to examine whether a school-based intervention was efficient in increasing children’s FV intake especially among those whose FV intake is the lowest and which factors could explain the the group differences in the associations.

    Method / Design: In Finland 11-year-old (at baseline) children participated in the PRO GREENS intervention in winter 2009. In control schools were 424 and in intervention schools 386 children (response rate 77%). Children filled in validated food frequency questionnaire assessing FV intake (times/day) and a validated questionnaire about factors influencing FV intake (availability of FV, liking for FV, preferences, self-efficacy to eat FV, attitudes towards FV and knowledge of the recommendations) both at baseline May 2009 and follow-up May 2010. Parental educational level (low, middle, high) was reported by the parents. Associations were examined with linear regression and mediation analyses.

    Results: The intervention increased fruit intake among girls but not among boys. Intervention increased also children’s knowledge of the recommendations. Since knowledge had no impact on boys’ fruit intake, the increase in knowledge mediated only intervention’s effect on girls’ fruit intake. Intervention increased children’s fruit intake similarly in all PEL groups.Intervention increased vegetable intake only in the middle PEL group but no intervention effect was noted among children with low or high PEL. Knowledge, the only factor which mediated the intervention’s effect on children’s vegetable intake, could not explain PEL differences in the effectivity of the intervention.

    Conclusions: Increase in knowledge was not a sufficient prerequisite to increase FV intake among boys or the lowest PEL group. More in depth analyses are needed to find out which factors to target in interventions to reach an effect in the target groups.

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