Department of Biochemistry and Molecular Biology, University of Colombo, Colombo, Sri Lanka.
J Hum Nutr Diet. 2013 Aug;26(4):380-6. doi: 10.1111/jhn.12063. Epub 2013 Apr 12.
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 Asian foods and tested their accuracy and precision in children.
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.
A high percentage (68%) of correct estimations and high correlation (r > 0.95, P < 0.001) for estimated versus actual weight were observed. Bland-Altman analysis indicated 91% of estimations within the limits of agreement. Accuracy and precision was high for both amorphous and non-amorphous foods.
Portion size estimation using realistic food models is found to be accurate and precise and is suitable for use in children.
新型部分大小估计辅助工具与儿童认知能力相关，对于提高饮食回忆的准确性是必要的。我们开发了针对亚洲食品的渐进式现实食品模型，并在儿童中测试了它们的准确性和精密度。
使用一系列低成本材料为九种常见食用食品制作食品模型。在随机抽取的 80 名在校儿童（年龄在 10-16 岁之间）中进行了测试。共进行了 719 次估计。
观察到高比例（68%）的正确估计值和高相关性（r>0.95，P<0.001），即估计值与实际重量之间的相关性。Bland-Altman 分析表明，91%的估计值在一致性限内。非晶态和非晶态食品的准确性和精密度均较高。
使用现实食品模型进行部分大小估计被发现是准确和精确的，适合儿童使用。
