Estimated portion sizes in a school-aged population.

Public Health Nutr

School of Translational Medicine, University of Manchester and NIHR Translational Research Facility in Respiratory Medicine, University Hospital of South Manchester NHS Foundation Trust, Manchester, UK.

Published: December 2012

Objective: To produce study-specific portion sizes for 11-year-old children in a population-based birth cohort and to compare these study-specific portion sizes with previously published children's portion sizes, to assess their relevance today.

Design: Two multiple-pass 24 h dietary recalls were taken. The Food Standard Agency's photographic food atlas was used to quantify intakes. Study-specific food portion sizes were calculated for each food group. Portion sizes were calculated for all children and separately for boys and girls. The nutrient intake from the 24 h dietary recalls was analysed using study-specific and published portion sizes for individual participants. Agreement was assessed using Pearson's correlation, intra-class correlation coefficients and the Bland-Altman method.

Setting: Birth cohort study, UK.

Subjects: Children (mean age 11.3 years, n 264) and parents/guardians.

Results: A total of 124 food portion sizes were calculated. Differences in portion weights between boys and girls were seen only for seven food items. There was a significant positive relationship (P < 0.001) between intakes of each nutrient as determined by the two sets of portion sizes. Correlation coefficients ranged from 0.77 (protein) to 0.98 (β-carotene). The intra-class correlation coefficients showed good agreement between nutrient intakes determined by the study-specific and published portion sizes (P < 0.001).

Conclusions: Nutrient intakes calculated using portion sizes from our population were similar to those calculated from portion size data collected in a national survey, despite being collected over a decade later. The present study adds to the small amount of evidence regarding portion sizes in UK children and shows agreement with previously published paediatric portion sizes.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10271483PMC
http://dx.doi.org/10.1017/S1368980012001140DOI Listing

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