Taking Advantage of the Strengths of 2 Different Dietary Assessment Instruments to Improve Intake Estimates for Nutritional Epidemiology
Taking Advantage of the Strengths of 2 Different Dietary Assessment Instruments to Improve Intake Estimates for Nutritional Epidemiology
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DOI：
10.1093/aje/kwr317
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发表时间：
2012-02-15
影响因子：
5
通讯作者：
Kipnis, Victor
中科院分区：
文献类型：
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作者：
Carroll, Raymond J.;Midthune, Douglas;Kipnis, Victor
随着基于互联网的24小时回忆(24HR)工具的出现，现在可以想象它们在调查营养和疾病之间关系的队列研究中的使用。考虑到所有膳食评估工具都会受到测量误差的影响，并在假设24HR对正常摄入量没有偏见的情况下进行校正，这里的作者同时讨论了以下3种情况下的精密度、功率和样本量：1)1-12 24小时；2)单一校准的食物频率问卷(FFQ)；以及3)24HR和FFQ数据的组合。使用美国餐桌研究(1997-1998)的数据，作者发现，对于大多数营养素和食物类别来说，4-6次24HR是最佳的，并且联合使用多个24HR和FFQ数据有时提供的数据优于单独使用任何一种方法，特别是对于不经常消费的食物。对于除了最少消费的所有食品组，单独使用2-4次召回，无论是否有额外的FFQ数据，都优于单独使用FFQ数据。因此，如果要在队列研究中使用自我给药的自动化24小时，应该考虑在给药的同时给药4-6个24小时。
With the advent of Internet-based 24-hour recall (24HR) instruments, it is now possible to envision their use in cohort studies investigating the relation between nutrition and disease. Understanding that all dietary assessment instruments are subject to measurement errors and correcting for them under the assumption that the 24HR is unbiased for usual intake, here the authors simultaneously address precision, power, and sample size under the following 3 conditions: 1) 1-12 24HRs; 2) a single calibrated food frequency questionnaire (FFQ); and 3) a combination of 24HR and FFQ data. Using data from the Eating at America's Table Study (1997-1998), the authors found that 4-6 administrations of the 24HR is optimal for most nutrients and food groups and that combined use of multiple 24HR and FFQ data sometimes provides data superior to use of either method alone, especially for foods that are not regularly consumed. For all food groups but the most rarely consumed, use of 2-4 recalls alone, with or without additional FFQ data, was superior to use of FFQ data alone. Thus, if self-administered automated 24HRs are to be used in cohort studies, 4-6 administrations of the 24HR should be considered along with administration of an FFQ.