Familial Resemblance in Dietary Intakes of Children, Adolescents, and Parents : Does Dietary Quality Play a Role?

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Bogl , L H , Silventoinen , K , Hebestreit , A , Intemann , T , Williams , G , Michels , N , Molnar , D , Page , A S , Pala , V , Papoutsou , S , Pigeot , I , Reisch , L A , Russo , P , Veidebaum , T , Moreno , L A , Lissner , L & Kaprio , J 2017 , ' Familial Resemblance in Dietary Intakes of Children, Adolescents, and Parents : Does Dietary Quality Play a Role? ' , Nutrients , vol. 9 , no. 8 , 892 . https://doi.org/10.3390/nu9080892

Title: Familial Resemblance in Dietary Intakes of Children, Adolescents, and Parents : Does Dietary Quality Play a Role?
Author: Bogl, Leonie H.; Silventoinen, Karri; Hebestreit, Antje; Intemann, Timm; Williams, Garrath; Michels, Nathalie; Molnar, Denes; Page, Angie S.; Pala, Valeria; Papoutsou, Stalo; Pigeot, Iris; Reisch, Lucia A.; Russo, Paola; Veidebaum, Toomas; Moreno, Luis A.; Lissner, Lauren; Kaprio, Jaakko
Contributor: University of Helsinki, Institute for Molecular Medicine Finland
University of Helsinki, University of Helsinki
University of Helsinki, Clinicum
Date: 2017-08
Language: eng
Number of pages: 18
Belongs to series: Nutrients
ISSN: 2072-6643
URI: http://hdl.handle.net/10138/224499
Abstract: Information on familial resemblance is important for the design of effective family-based interventions. We aimed to quantify familial correlations and estimate the proportion of variation attributable to genetic and shared environmental effects (i.e., familiality) for dietary intake variables and determine whether they vary by generation, sex, dietary quality, or by the age of the children. The study sample consisted of 1435 families (1007 mothers, 438 fathers, 1035 daughters, and 1080 sons) from the multi-center I. Family study. Dietary intake was assessed in parents and their 2-19 years old children using repeated 24-h dietary recalls, from which the usual energy and food intakes were estimated with the U.S. National Cancer Institute Method. Food items were categorized as healthy or unhealthy based on their sugar, fat, and fiber content. Interclass and intraclass correlations were calculated for relative pairs. Familiality was estimated using variance component methods. Parent-offspring (r = 0.11-0.33), sibling (r = 0.21-0.43), and spouse (r = 0.15-0.33) correlations were modest. Parent-offspring correlations were stronger for the intake of healthy (r = 0.33) than unhealthy r = 0.10) foods. Familiality estimates were 61% (95% CI: 54-68%) for the intake of fruit and vegetables and the sum of healthy foods and only 30% (95% CI: 23-38%) for the sum of unhealthy foods. Familial factors explained a larger proportion of the variance in healthy food intake (71%; 95% CI: 62-81%) in younger children below the age of 11 than in older children equal or above the age of 11 (48%; 95% CI: 38-58%). Factors shared by family members such as genetics and/or the shared home environment play a stronger role in shaping children's intake of healthy foods than unhealthy foods. This suggests that family-based interventions are likely to have greater effects when targeting healthy food choices and families with younger children, and that other sorts of intervention are needed to address the intake of unhealthy foods by children.
Subject: familial aggregation
familial resemblance
shared environment
family study
dietary intake
diet quality
healthy diet
young children
3142 Public health care science, environmental and occupational health

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