AgroParisTech, Paris, France.
J Hum Nutr Diet. 2009 Dec;22(6):559-66. doi: 10.1111/j.1365-277X.2009.00990.x.
There is a dearth of knowledge about the foods that Australian adults eat and a need for a flexible, easy-to-use tool that can estimate usual dietary intakes. The present study was to validate a commonly used Australian Commonwealth Scientific and Industrial Research Organisation (CSIRO) food-frequency questionnaire (C-FFQ) against two 4-day weighed food records (WFR), as the reference method.
The C-FFQ, as the test item, was administrated before the WFR. Two 4-day WFR were administrated 4 weeks apart. Under-reporting was established using specific cut-off limits and estimated basal metabolic rate. Seventy-four women, aged 31-60 years, were enrolled from a free-living community setting.
After exclusion for under-reporting, the final sample comprised 62 individuals. Correlations between protein intake from the WFR and urinary urea were significant. Overall agreement between FFQ and WFR was shown by 'levels of agreement' (LOA) and least products regressions. There was presence of fixed and proportional bias for almost half the nutrients, including energy, protein, fat and carbohydrates. For most of the nutrients that did not present bias, the LOA were 50-200%. Agreement was demonstrated for percentage dietary energy protein and fat; carbohydrate; and absolute amounts of thiamine, riboflavin, magnesium and iron. However, relative intake agreement was fair to moderate, with approximately 70% of (selected) nutrients exact or within +/-1 quintile difference.
The C-FFQ is reasonable at measuring percentage energy from macronutrients and some micronutrients, and comprises a valuable tool for ranking intakes by quintiles; however, it is poor at measuring many absolute nutrient intakes relative to WFR.
目前对于澳大利亚成年人的饮食习惯所知甚少，我们需要一个灵活易用的工具，以便能够对日常饮食摄入量进行估计。本研究旨在验证一种常用的澳大利亚联邦科学与工业研究组织（CSIRO）食物频率问卷（C-FFQ），并将其与两种为期 4 天的称重食物记录（WFR）作为参考方法进行对比。
C-FFQ 作为测试项，在 WFR 之前进行管理。两次为期 4 天的 WFR 相隔 4 周进行。使用特定的截断值和估计的基础代谢率来确定是否存在低报现象。从自由生活的社区环境中招募了 74 名年龄在 31-60 岁之间的女性。
在排除低报现象后，最终样本由 62 人组成。WFR 中蛋白质摄入量与尿尿素之间存在显著相关性。通过“水平一致性”（LOA）和最小乘积回归显示了 FFQ 和 WFR 之间的总体一致性。几乎一半的营养素（包括能量、蛋白质、脂肪和碳水化合物）存在固定和比例偏差。对于大多数不存在偏差的营养素，LOA 在 50-200%之间。对于能量、蛋白质和脂肪的膳食百分比、碳水化合物、硫胺素、核黄素、镁和铁的绝对量，都证明了一致性。然而，相对摄入量的一致性是公平到中度的，大约 70%的（选定）营养素的差异在 1 个五分位内。
C-FFQ 能够合理地测量宏量营养素和一些微量营养素的能量百分比，并且是一种用于按五分位数对摄入量进行排序的有价值的工具；然而，与 WFR 相比，它在测量许多绝对营养素摄入方面的表现较差。
