DIFFERENCES IN REPORTED FOOD FREQUENCY BY SEASON OF QUESTIONNAIRE ADMINISTRATION - THE 1987 NATIONAL-HEALTH INTERVIEW SURVEY
DIFFERENCES IN REPORTED FOOD FREQUENCY BY SEASON OF QUESTIONNAIRE ADMINISTRATION - THE 1987 NATIONAL-HEALTH INTERVIEW SURVEY
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DOI：
10.1097/00001648-199403000-00013
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发表时间：
1994-03-01
期刊：
影响因子：
5.4
通讯作者：
KAHLE, L
中科院分区：
文献类型：
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作者：
SUBAR, AF;FREY, CM;KAHLE, L
我们使用1987年全国健康访谈调查（N = 20，143名成年人）的数据，评估了为期1年的59项食物频率问卷（FFQ）中的季节性报告偏倚。很少有意义的差异，发现在个人的比例报告很少或从来没有消费a：食物的季节问卷管理。然而，季节性报告偏差在FFQ中很明显，并且似乎是由于报告最近的消费量而导致的。使用特定性别的每周中位份量，使用逻辑回归的分析显示，报告食物摄入量大于每年的个人估计比例：中位数不同：任何两个季节之间，至少有5%的人口选择22种食物。我们比较了特定性别的五分之一的选定营养素/食物组的全年和每个季节，这些表明，五分之一分配从来没有变化的仅仅是一个相邻的五分之一。五分位分配中最频繁的变化发生在柑橘类水果上，涉及夏季多达18.5%的妇女。摄入偏差很小，如果FFQ在所有季节都进行管理，则不会对人口估计产生很大影响，但它们可能会在一定程度上影响某些食物/营养素的分位数分类。
We assessed seasonal reporting bias in a 59-item food frequency questionnaire (FFQ) administered throughout 1 year using data from the 1987 National Health Interview Survey (N = 20,143 adults). Few meaningful differences were found in the proportion of individuals reporting rarely or-never consuming a: food by season of questionnaire administration. Seasonal reporting bias is evident in FFQs, however, and appears to be due to reporting most recent consumption Using gender-specific median servings per week, an analysis using logistic regression showed that the estimated proportion of individuals reporting food intake at greater than the yearly: median differed:between any two seasons by at least 5% of the population for 22 foods. We compared gender-specific quintiles of selected nutrients/food groups for the whole year and each season; these showed that quintile assignment never varied by mere than one adjacent quintile. The most frequent shift in quintile assignment, involving as many as 18.5 % of women in the summer, occurred for citrus fruits. The intake biases are small and do not greatly affect population estimates if the FFQ is administered in all seasons, but they may somewhat affect classification of individuals into quantiles for some foods/nutrients.