Food and Nutrition Policy Research Program, RTI International, Research Triangle Park, NC, USA.
J Nutr. 2013 Feb;143(2):197-203. doi: 10.3945/jn.112.169524. Epub 2012 Dec 19.
Documentation of micronutrient intake inadequacies among developing country populations is important for planning interventions to control micronutrient deficiencies. The objective of this study was to quantify micronutrient intakes by young children and their primary female caregivers in rural Bangladesh. We measured 24-h dietary intakes on 2 nonconsecutive days in a representative sample of 480 children (ages 24-48 mo) and women in 2 subdistricts of northern Bangladesh by using 12-h weighed food records and subsequent 12-h recall in homes. We calculated the probability of adequacy (PA) of usual intakes of 11 micronutrients and an overall mean PA, and evaluated dietary diversity by counting the total number of 9 food groups consumed. The overall adequacy of micronutrient intakes was compared to dietary diversity scores using correlation and multivariate regression analyses. The overall mean prevalence of adequacy of micronutrient intakes for children was 43% and for women was 26%. For children, the prevalence of adequate intakes for each of the 11 micronutrients ranged from a mean of 0 for calcium to 95% for vitamin B-6 and was <50% for iron, calcium, riboflavin, folate, and vitamin B-12. For women, mean or median adequacy was <50% for all nutrients except vitamin B-6 and niacin and was <1% for calcium, vitamin A, riboflavin, folate, and vitamin B-12. The mean PA (MPA) was correlated with energy intake and dietary diversity, and multivariate models including these variables explained 71-76% of the variance in MPA. The degree of micronutrient inadequacy among young children and women in rural Bangladesh is alarming and is primarily explained by diets low in energy and little diversity of foods.
发展中国家人口微量营养素摄入不足的记录对于规划控制微量营养素缺乏的干预措施非常重要。本研究的目的是量化孟加拉国农村地区幼儿及其主要女性照顾者的微量营养素摄入量。我们通过使用 12 小时称重食物记录和随后在家中进行 12 小时回忆,在孟加拉国北部的 2 个分区中对 480 名儿童(24-48 个月)和妇女进行了代表性抽样,测量了 2 天的 24 小时饮食摄入量。我们计算了 11 种微量营养素通常摄入量的充足概率(PA)和总体平均 PA,并通过计算食用的 9 种食物组的总数来评估饮食多样性。使用相关和多元回归分析,将总体微量营养素摄入量的充足程度与饮食多样性评分进行了比较。儿童微量营养素摄入量总体充足率为 43%,妇女为 26%。对于儿童,11 种微量营养素中每种营养素的充足摄入量的流行率从钙的平均 0%到维生素 B-6 的 95%不等,铁、钙、核黄素、叶酸和维生素 B-12 的摄入量不足 50%。对于妇女,除了维生素 B-6 和烟酸外,所有营养素的平均或中位数充足率均<50%,钙、维生素 A、核黄素、叶酸和维生素 B-12 的充足率<1%。平均充足概率(MPA)与能量摄入和饮食多样性相关,包括这些变量的多元模型解释了 MPA 方差的 71%-76%。孟加拉国农村地区幼儿和妇女微量营养素不足的程度令人震惊,主要是由于饮食中能量低且食物种类单一。