Medin Anine Christine, Carlsen Monica Hauger, Andersen Lene Frost
Institute of Basic Medical Sciences, Faculty of Medicine,University of Oslo,Postboks 1046,Blindern,NO N-0317 OSLO,Norway.
Public Health Nutr. 2016 Dec;19(18):3265-3275. doi: 10.1017/S1368980016001622. Epub 2016 Jun 27.
To validate estimated intakes of carotenoid-rich foods from a web-based food recall (WebFR) using carotenoids in blood as an objective reference method.
Cross-sectional validation study using carotenoids in plasma to evaluate estimated intakes of selected carotenoid-rich foods. Participants recorded their food intake in the WebFR and plasma concentrations of β-carotene, α-carotene, β-cryptoxanthin, lycopene, lutein and zeaxanthin were measured.
Schools and homes of families in a suburb of the capital of Norway.
A total of 261 participants in the age groups 8-9 and 12-14 years.
Spearman's rank correlation coefficients ranged from 0·30 to 0·44, and cross-classification showed that 71·6-76·6 % of the participants were correctly classified, when comparing the reported intakes of carotenoid-rich foods and concentrations of the corresponding carotenoids in plasma, not including lutein and zeaxanthin.
Correlations were acceptable and cross-classification analyses demonstrated that the WebFR was able to rank participants according to their reported intake of foods rich in α-carotene, β-carotene, β-cryptoxanthin and lycopene. The WebFR is a promising tool for dietary assessment among children and adolescents.
以血液中的类胡萝卜素作为客观参考方法，验证基于网络的食物召回法（WebFR）对富含类胡萝卜素食物的估计摄入量。
采用横断面验证研究，利用血浆中的类胡萝卜素评估所选富含类胡萝卜素食物的估计摄入量。参与者在WebFR中记录其食物摄入量，并测量血浆中β-胡萝卜素、α-胡萝卜素、β-隐黄质、番茄红素、叶黄素和玉米黄质的浓度。
挪威首都郊区的学校和家庭。
共有261名年龄在8 - 9岁和12 - 14岁的参与者。
斯皮尔曼等级相关系数在0·30至0·44之间，交叉分类显示，在比较富含类胡萝卜素食物的报告摄入量和血浆中相应类胡萝卜素浓度时（不包括叶黄素和玉米黄质），71·6 - 76·6%的参与者分类正确。
相关性是可接受的，交叉分类分析表明WebFR能够根据参与者报告的富含α-胡萝卜素、β-胡萝卜素、β-隐黄质和番茄红素食物的摄入量对参与者进行排名。WebFR是一种用于儿童和青少年膳食评估的有前景的工具。
