北京地区孕妇硫胺素、核黄素营养状况及城乡比较

目的　了解北京地区城乡孕妇硫胺素、核黄素的营养状况。　方法　通过膳食调查及血液生化指标检测进行比较研究。　结果　（１）农村孕妇硫胺素摄入量显著高于城市孕妇，红细胞转酮醇酶活性（ＴＰＰ效应％ ）城乡之间差异无统计学意义；（２）城市孕妇核黄素摄入量高于农村孕妇，分别为推荐膳食供给量（ＲＤＡ）的６６．１％ 和３０．６％ ；农村孕妇核黄素缺乏率显著高于城市孕妇；　结论　城乡孕妇核黄素营养状况的差异主要因乳类、蛋类食物摄入量差异所致，其中乳类食物摄入量的差异影响最大

A Comparison Study of Thiamin and Riboflavin Status in Pregnant Women between Urban and Rural Area

Objective To study the thiamin and riboflavin status in pregnant women from urban ( n =35) and rural ( n =31) areas in Beijing. Methods The dietary survey and the biochemical assay for thiamin and riboflavin were carried out longitudinally from the 2nd trimester to the 3rd one. Results Showed: (1)The intake of thiamin of the rural pregnant women was significantly higher than that of the urban pregnant women. And there was no significant difference in erythrocyte transketolase activity (TPP effect %) between the urban and rural. (2) The intake of riboflavin of the urban pregnant women (66.1% of RDA) was significantly higher than that of the rural pregnant women (30.6% of RDA); The incidence of riboflavin deficiency in the rural area was significantly higher than that in the urban raea; Condusions The riboflavin status of the rural pregnant women is poorer than that of the urban pregnant women.