Davies P S, Coward W A, Gregory J, White A, Mills A
Dunn Nutrition Unit, Cambridge.
Br J Nutr. 1994 Jul;72(1):13-20. doi: 10.1079/bjn19940005.
In a cohort (n 81) of healthy children aged 1.5-4.5 years, measurements of energy intake and energy expenditure were compared. Energy intake was calculated following a 4 d weighed record completed by the mother or guardian of the child. Total energy expenditure was measured using the doubly-labelled water technique. Mean energy intake and expenditure in the cohort were 4773 kJ/d and 4928 kJ/d respectively. The mean relative bias between the techniques was 154 kJ/d. In the older children (3.5-4.5 years) the mean relative bias was only 37 kJ/d. At the population level the measurements of energy intake and energy expenditure were extremely close, and the study has provided sufficient confidence in weighed intake methodology for it to be used in a major nationwide study of dietary intake and nutritional status of children aged 1.5-4.5 years.
在一个由81名1.5至4.5岁健康儿童组成的队列中，对能量摄入和能量消耗进行了比较。能量摄入是根据孩子的母亲或监护人完成的4天称重记录来计算的。总能量消耗采用双标水技术进行测量。该队列中的平均能量摄入和消耗分别为4773千焦/天和4928千焦/天。两种技术之间的平均相对偏差为154千焦/天。在年龄较大的儿童（3.5至4.5岁）中，平均相对偏差仅为37千焦/天。在总体水平上，能量摄入和能量消耗的测量结果极为接近，并且该研究为称重摄入方法提供了足够的信心，使其能够用于一项关于1.5至4.5岁儿童饮食摄入和营养状况的全国性大型研究。
