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标题：Reporting accuracy of packed lunch consumption among Danish 11-year-olds differ by gender
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作者：Lyng, Nina ; Fagt, Sisse ; Davidsen, Michael 等
期刊名称：Food & Nutrition Research
印刷版ISSN：1654-661X
出版年度：2013
卷号：57
期号：0
DOI：10.3402/fnr.v57i0.19621
语种：English
出版社：Co-Action Publishing
摘要：Background: Packed lunch is the dominant lunch format in many countries including Denmark. School lunch is consumed unsupervised, and self-reported recalls are appropriate in the school setting. However, little is known about the accuracy of recalls in relation to packed lunch.Objective: To assess the qualitative recall accuracy of self-reported consumption of packed lunch among Danish 11-year-old children in relation to gender and dietary assessment method.Design: A cross-sectional dietary recall study of packed lunch consumption. Digital images (DIs) served as an objective reference method to determine food items consumed. Recalls were collected with a lunch recall questionnaire (LRQ) comprising an open-ended recall (OE-Q) and a pre-coded food group prompted recall (PC-Q). Individual interviews (INTs) were conducted successively. The number of food items was identified and accuracy was calculated as match rates (% identified by DIs and reported correctly) and intrusion rates (% not identified by DIs but reported) were determined.Setting and subjects: Three Danish public schools from Copenhagen. A total of 114 Danish 11-year-old children, mean (SE) age = 11.1 (0.03), and body mass index = 18.2 (0.26). Results: The reference (DIs) showed that girls consumed a higher number of food items than boys [mean (SE) 5.4 (0.25) vs. 4.6 (0.29) items (p=0.05)]. The number of food items recalled differed between genders with OE-Q recalls (p=0.005) only. Girls’ interview recalls were more accurate than boys’ with higher match rates (p=0.04) and lower intrusion rates (p=0.05). Match rates ranged from 6790% and intrusion rates ranged from 1339% with little differences between girls and boys using the OE-Q and PC-Q methods.Conclusion: Dietary recall validation studies should not only consider match rates as an account of accuracy. Intrusions contribute to over-reporting in non-validation studies, and future studies should address recall accuracy and inaccuracies in relation to gender and recall method.Keywords: school lunch; self-reported intake; recall accuracy(Published: 6 March 2013)Citation: Food & Nutrition Research 2013. 57: 19621 - http://dx.doi.org/10.3402/fnr.v57i0.19621
关键词：public health nutrition; food related nutrition;School children, packed lunch, self-reported intake, recall accuracy