Longitudinal changes in the accuracy of reported energy intake in girls 10-15 y of age
Longitudinal changes in the accuracy of reported energy intake in girls 10-15 y of age
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DOI：
10.1093/ajcn/78.3.480
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发表时间：
2003-09-01
影响因子：
7.1
通讯作者：
Dietz, WH
中科院分区：
文献类型：
--
作者：
Bandini, LG;Must, A;Dietz, WH
背景：膳食记录通常用于估计个人能量需求和群体能量需求。然而，显着漏报的总能量摄入量（EI）已被发现时，EI相比，总能量消耗（EE）测量的双标记water.Objective：本研究旨在确定是否报告EI的准确性下降，从童年中期到adolescent.Design：在这个纵向研究的26名健康女孩，EI和EE在10岁，12岁，15岁。在每个年龄计算报告的EI（EI/EE x 100%）的准确性。进入研究时，女孩的平均（+/- SD）体重指数（kg/m2）为16.8 +/- 1.9，体脂百分比为24.0 +/-4.6%。EI的测量是一个7天的饮食记录和EE的双标记water.Results：随着年龄的增长，女孩往往报告EI不太准确：平均准确率为88 +/- 13%，在10岁，77 +/- 21%，在12岁，68 +/- 17%，在15岁。从10岁到12岁和从10岁到15岁，报告准确性的下降具有统计学意义（分别为P = 0.03和P = 0.001）。报告的准确性也下降，从12岁到15岁，但不显着。当身体脂肪的百分比被添加到model.Conclusion：由于EI报告的准确性随着年龄的下降，使用EI数据从饮食记录中获得的青春期女孩将导致大量低估的能量需求。
Background: Dietary records are often used to estimate individual energy needs and population energy requirements. However, significant underreporting of total energy intake (EI) has been found when EI is compared with total energy expenditure (EE) measured by doubly labeled water.Objective: This study aimed to determine whether the accuracy of reported EI decreases from middle childhood to adolescence.Design: In this longitudinal study of 26 healthy girls, El and EE were measured at ages 10, 12, and 15 y. Accuracy of reported EI (EI/EE x 100%) was calculated at each age. At study entry, girls had a mean (+/- SD) body mass index (in kg/m(2)) of 16.8 +/- 1.9 and percentage body fat of 24.0 +/- 4.6%. Measurements of EI were a 7-d dietary record and those of EE were by doubly labeled water.Results: As they got older, girls tended to report EI less accurately: the average accuracy was 88 +/- 13% at age 10 y, 77 +/- 21% at age 12 y, and 68 +/- 17% at age 15 y. The declines in reporting accuracy from age 10 y to age 12 y and from age 10 y to age 15 y were statistically significant (P = 0.03 and P = 0.001, respectively). Reporting accuracy also declined from age 12 to age 15 y but not significantly. When percentage body fat was added to the model, results were essentially unchanged.Conclusion: Because of the decline in EI reporting accuracy with age, the use of EI data obtained from dietary records in adolescent girls will result in substantial underestimation of energy needs.