Community Nutrition Research Centre of Nutrition Research Foundation, University of Barcelona Science Park, 08028 Barcelona, Spain.
Matern Child Nutr. 2010 Oct;6 Suppl 2(Suppl 2):112-21. doi: 10.1111/j.1740-8709.2010.00268.x.
The objective of this study was to review how accurately micronutrient intakes in infants, children, and adolescents were assessed with validated food frequency questionnaires (FFQs) to which study quality criteria had been applied. The methodology and the analysis presented were based on several research activities carried out within the European Micronutrient Recommendation Aligned Network of Excellence. The analysis was limited to vitamin D, vitamin C, vitamin B₁₂, folate, selenium, iron, zinc, iodine, calcium, and copper. A search strategy was defined in MEDLINE and EMBASE literature for studies validating FFQs that estimated intakes of micronutrients being evaluated. Identification of at least three validation studies per micronutrient was required to be included in the analysis. A total score for each nutrient was calculated from the mean of the correlation coefficients weighted by the quality of the study, which included a quality score that was based on sample size, statistics used, data collection procedure, consideration of seasonality and supplement use, an adjustment/weighting of the correlation coefficient according to the quality score, and a rating of the adjusted/weighted correlation. When the mean weighted correlation coefficient was equal to or higher than 0.5, micronutrient intake was considered as adequately estimated. Sufficient validation studies were identified for vitamin C, vitamin D, vitamin B₁₂, iron, zinc, and calcium for infants and pre-school children, and vitamin C, calcium, and iron for older children and adolescents. Results showed that the FFQ was a good instrument for estimating intake of vitamin C, vitamin D, calcium, zinc and iron in infants and pre-school children, and for estimating calcium and vitamin C in children and adolescents.
本研究旨在评估应用研究质量标准验证的食物频率问卷（FFQ）对婴幼儿、儿童和青少年微量营养素摄入量的评估准确性。本分析所采用的方法和分析基于在欧洲微量营养素推荐一致网络卓越中心开展的多项研究活动。分析仅限于维生素 D、维生素 C、维生素 B₁₂、叶酸、硒、铁、锌、碘、钙和铜。在 MEDLINE 和 EMBASE 文献中定义了一个检索策略，用于寻找验证 FFQ 以评估评估的微量营养素摄入量的研究。每个营养素至少需要有三项验证研究才能纳入分析。根据研究质量对每个营养素的相关系数的平均值进行加权计算，其中包括基于样本量、使用的统计数据、数据收集程序、季节性和补充剂使用的考虑、根据质量评分调整/加权相关系数以及对调整/加权相关系数的评级的质量评分。当平均加权相关系数等于或高于 0.5 时，认为微量营养素摄入得到了充分估计。足够的验证研究确定了维生素 C、维生素 D、维生素 B₁₂、铁、锌和钙适用于婴幼儿，维生素 C、钙和铁适用于较大儿童和青少年。结果表明，FFQ 是一种很好的工具，可以估计婴幼儿和学龄前儿童的维生素 C、维生素 D、钙、锌和铁的摄入量，以及儿童和青少年的钙和维生素 C 的摄入量。
