【摘要】 用Ｇｒａｍ－Ｃｈａｒｌｉｅｒ混合样本剖析的统计方法，对３６２４例经横断面调查所得的６月～６岁儿童的游离原卟啉（ＦＥＰ）资料进行分析，发现第一组儿童的ＦＥＰ均数为３３５μｇ／Ｌ，第二组为５５７μｇ／Ｌ，以４３０～４５０μｇ／Ｌ中任一点作为分组标准时，其约登指数均较高，推荐用４３０μｇ／Ｌ作为儿童缺铁筛查标准。更多还原

【Abstract】 FEP data from 3 624 children,6 months to 6 years-old,were collected and analyzed by the Gram-Charller’s mixed samples dissection method.The results showed that the average of FEP is 335μg/L in the first group,and 557μg/L in the second group.If anyone pointfrom a range of 430～450μg/L be used as the cutpoint and as the ID criterium for screening,the Youden’s Index will be higher.430μg/L FEP value is recommended as a screening ID criterium for children.更多还原