| Causes of increased energy intake among children in the u.s., 1977-2010. | |
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MedLine Citation:
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PMID: 23332342 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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BACKGROUND: Changes in total energy intake have been reported among children and adolescents, but the extent to which the components of total energy-energy density; portion size; and the number of eating/drinking occasions (EO)-drive these changes is unknown. PURPOSE: The objective of the current study was to examine the relative contribution to changes in daily total energy. METHODS: Using cross-sectional nationally representative data from the Nationwide Food Consumption Survey (1977-1978); the Continuing Survey of Food Intake of Individuals (1989-1991); and the National Health and Nutrition Examination Surveys (1994-1998 and 2005-2010) for children and adolescents (aged 2-18 years), changes in total energy (kcal/day) were mathematically decomposed to determine the relative contributions of its three component parts: portion size (g/EO); energy density (kcal/g/EO); and eating/drinking occasions (n). Analyses were completed in 2012. RESULTS: Over the full period, there was an increase in total energy intake (+108 kcal/day) and the number of daily eating/drinking occasions (+1.2). The average portion size per eating/drinking occasion increased between 1977-1978 and 1989-1991, and then dropped by about 85 g/EO between 1989-1991 and 2005-2010. The average energy density per eating/drinking occasion has fluctuated over time, reaching its highest level in 2005-2010 (1.24 kcal/g/EO). The decomposition results show that between 1977-1978 and 2005-2010, changes in the number of eating/drinking occasions per day and portion size per eating occasion were the largest contributors to annualized changes in daily total energy (+19 and -13 kcal/day/year, respectively). Variations in trends were observed for race/ethnicity and parental education subgroups. CONCLUSIONS: These findings highlight potentially important intervention targets for reducing energy imbalances in U.S. youth. |
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Authors:
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Kiyah J Duffey; Barry M Popkin |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of preventive medicine Volume: 44 ISSN: 1873-2607 ISO Abbreviation: Am J Prev Med Publication Date: 2013 Feb |
Date Detail:
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Created Date: 2013-01-21 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8704773 Medline TA: Am J Prev Med Country: Netherlands |
Other Details:
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Languages: eng Pagination: e1-8 Citation Subset: IM |
Copyright Information:
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Copyright © 2013 American Journal of Preventive Medicine. Published by Elsevier Inc. All rights reserved. |
Affiliation:
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Carolina Population Center, and the Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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