中国儿童微量营养素缺乏及相关社会人口因素。
Micronutrients deficiency and associated sociodemographic factors in Chinese children.
机构信息
School of Nursing, University of Pennsylvania, 418 Curie Blvd., Philadelphia, Pennsylvania 19104, USA.
出版信息
World J Pediatr. 2011 Aug;7(3):217-23. doi: 10.1007/s12519-011-0317-1. Epub 2011 Aug 7.
BACKGROUND
Although the prevalence of malnutrition has decreased, micronutrient deficiency still exists among children. While iron level has been studied, limited information on serum levels of zinc in Chinese children is available. This study aims to describe the status of micronutrients and its association with sociodemographic factors, and to assess associated risk factors.
METHODS
A cross-sectional study was performed on 1375 Chinese preschool children. Venous blood samples were collected and analyzed for zinc and iron by atomic absorption spectrophotometry. Sociodemographic information was obtained from self-administered questionnaires given to the parents.
RESULTS
The high prevalence of low serum zinc (38.2%) and iron (24.3%) was found. Children from rural preschools had the lowest zinc levels, whereas those from urban preschools had the lowest iron levels. Children living in small houses had the highest prevalence of low serum zinc (47.1%), and children from small families (≤3 persons) had a higher prevalence of low serum zinc than those from large families (41.8% vs. 34.1%).
CONCLUSIONS
Our findings in the recent socioeconomic development of China suggest the need for continuous monitoring of nutritional factors and highlight the importance of public health implication in preschool children even in developed regions.
背景
尽管营养不良的患病率有所下降，但儿童仍存在微量营养素缺乏的问题。虽然已经研究了铁水平，但有关中国儿童血清锌水平的信息有限。本研究旨在描述微量营养素的状况及其与社会人口因素的关系，并评估相关的危险因素。
方法
对 1375 名中国学龄前儿童进行了横断面研究。采集静脉血样，采用原子吸收分光光度法检测锌和铁。社会人口学信息由家长填写的自填式问卷获得。
结果
发现低血清锌（38.2%）和铁（24.3%）的高患病率。来自农村幼儿园的儿童锌水平最低，而来自城市幼儿园的儿童铁水平最低。居住在小房子里的儿童低血清锌的患病率最高（47.1%），而来自小家庭（≤3 人）的儿童低血清锌的患病率高于大家庭（41.8% vs. 34.1%）。
结论
我们在中国近期社会经济发展中的发现表明，需要持续监测营养因素，并强调即使在发达地区，公共卫生对学龄前儿童的重要性。
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