Department of Clinical Sciences, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.
Br J Nutr. 2009 Dec;102 Suppl 1:S38-55. doi: 10.1017/S0007114509993138.
The EURopean micronutrient RECommendations Aligned (EURRECA) Network of Excellence is working towards developing aligned micronutrient recommendations across Europe. The purpose of the present study was to conduct a review of methods used in validation studies carried out in adults assessing dietary intake of EURRECA priority minerals. A search strategy and inclusion criteria were defined and a scoring system was developed to rate the quality of each validation study that produced a quality index with possible scores obtained ranging from 0.5 to 7. A MEDLINE and EMBASE literature review was conducted. Articles/validation studies meeting the inclusion criteria included: 79/88 for Fe; 95/104 for Ca; 13/15 for Se; 29/30 for Zn; 7/9 for iodine. The most frequently used method to ascertain dietary intake was the Food Frequency Questionnaire (FFQ), whereas dietary records (DR) and 24 h recalls were the most used reference methods. The correlation coefficients (CC) between study mineral intakes estimated by FFQ and the reference method were weighted according to the study's quality index and obtained acceptable to good ratings, ranging from 0.36 to 0.60 when the reference method was DR and from 0.41 to 0.58 when the reference was 24 h recalls. A minority of studies (n 9) used biomarkers for validation and among these, five included iodine obtaining a CC of 0.47. The FFQ was seen as a valid method for assessing mineral intake, particularly for Ca and, to a lower extent, for iodine and Zn. Se and Fe showed only acceptable correlations. The present review provides new insights regarding the characteristics that assessment methods for dietary mineral intakes should fulfil.
EURopean 微量营养素推荐协调（EURRECA）卓越网络正在努力制定整个欧洲统一的微量营养素推荐标准。本研究的目的是对成人膳食摄入 EURRECA 优先矿物质的评估中进行验证研究中使用的方法进行综述。定义了搜索策略和纳入标准，并开发了评分系统，对产生质量指数的每个验证研究进行评分，质量指数的可能得分范围为 0.5 至 7。进行了 MEDLINE 和 EMBASE 文献综述。符合纳入标准的文章/验证研究包括：Fe 为 79/88；Ca 为 95/104；Se 为 13/15；Zn 为 29/30；碘为 7/9。确定膳食摄入量最常用的方法是食物频率问卷（FFQ），而膳食记录（DR）和 24 小时回忆是最常用的参考方法。根据研究的质量指数对 FFQ 估计的研究矿物质摄入量与参考方法之间的相关系数（CC）进行加权，获得可接受至良好的评分，当参考方法为 DR 时，范围为 0.36 至 0.60，当参考为 24 小时回忆时，范围为 0.41 至 0.58。少数研究（n=9）使用生物标志物进行验证，其中 5 项包括碘，CC 为 0.47。FFQ 被认为是评估矿物质摄入量的有效方法，特别是对于 Ca，并且在较低程度上，对于碘和 Zn。Se 和 Fe 仅显示出可接受的相关性。本综述提供了有关膳食矿物质摄入量评估方法应满足的特征的新见解。
