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Food models for portion size estimation of A sian foods
Author(s) -
Lanerolle P.,
Thoradeniya T.,
Silva A.
Publication year - 2013
Publication title -
journal of human nutrition and dietetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 70
eISSN - 1365-277X
pISSN - 0952-3871
DOI - 10.1111/jhn.12063
Subject(s) - medicine , portion size , estimation , recall , statistics , sample size determination , limits of agreement , range (aeronautics) , food science , mathematics , nuclear medicine , linguistics , chemistry , philosophy , management , economics , composite material , materials science
Background Novel portion size estimation aids relevant to the cognitive potential of children are necessary for an improved accuracy in dietary recall. We developed graduated realistic food models for A sian foods and tested their accuracy and precision in children. Methods Food models were constructed for nine commonly consumed food items using a range of low cost materials. These were tested among a random sample of 80 school children (aged 10–16 years). A total of 719 estimations were made. Results A high percentage (68%) of correct estimations and high correlation ( r > 0.95, P < 0.001) for estimated versus actual weight were observed. Bland– A ltman analysis indicated 91% of estimations within the limits of agreement. Accuracy and precision was high for both amorphous and non‐amorphous foods. Conclusions Portion size estimation using realistic food models is found to be accurate and precise and is suitable for use in children.