2009年宁夏婴幼儿尿碘监测结果分析  

Statistical analysis of monitoring data regarding urinary iodine level of infants and babies in Ningxia in 2009

作　　者：吴惠忠[1] 李丽[1] 尤文宁[1] 高海涛[1] 

机构地区：[1]宁夏疾病预防控制中心碘缺乏病预防控制科,银川750004

出　　处：《中国地方病学杂志》2010年第4期420-422,共3页Chinese Jouranl of Endemiology

摘　　要：目的 了解宁夏0～30个月婴幼儿的碘营养水平,为是否有必要开展特需人群强化补碘和下调盐含碘量提供参考依据.方法 采用二阶段抽样法,在全区22个县（市、区）的664个行政村中抽取1483名婴幼儿,用砷铈催化分光光度法检测其尿碘并进行相关影响因素调查.结果 全区婴幼儿的尿碘中位数为216.5μg/L,〈100μg/L所占比例为19.1%（283/1483）,100～300 μg/L所占比例为49.3%（731/1483）,〉300μg/L所占比例为31.6%（469/1483） 各县尿碘中位数在130.6 ～328.4μg/L,均〉100μg/L以上 尿碘中位数男性略高于女性,分别为223.2、210.2 μg/L,两者比较差异无统计学意义（Z=-1.76,P〉0.05） 1岁以内尿碘几乎无变化（Z=-0.624,P〉0.05）,1岁后开始逐渐下降（χ2=13.59,P〈0.05）,随着月龄的增加,尿碘〈100μg/L的比例逐渐增多 母亲服用过碘油的婴幼儿,尿碘高于未服用者,分别为257.5、22 1.2μg/L,两者比较差异有统计学意义（Z=-2.54,P〈0.05）.1岁以内接受母乳喂养的婴幼儿尿碘高于未服用者,分别为239.1、204.2μg/L,两者比较差异有统计学意义（Z=-2.74,P〈0.05）.结论 现行的食盐加碘量对宁夏婴幼儿可能造成其碘营养超过适宜量,故宁夏居民盐碘总体上有下调的空间.宁夏除西吉县外,其他山区县可不必对特需人群再进行强化补碘.Objective To determine urinary iodine level among babies and infants aged 0-30 months in Ningxia, and to provide scientific evidence for strengthening iodine supplement or decreasing salt iodine level in special population. Methods One thousand four hundred and eighty-three babies and infants were selected randomly from 664 administrative villages of 22 counties （city or district） by two-stage sampling method. Urinary iodine was tested with the arsenic cerium catalysis spectrophotometric method and related influencing factors were analyzed. Results Urinary iodine median was 216.5 μg/L of the whole autonomous region, and the value that was lower than 100 μg/L, accounted for 19.1%（283/1483）, 100 - 300 μg/L accounted for 49.3%（731/1483）, higher than 300 μg/L, accounted for 31.6% （469/1483）. Urinary iodine median was in 130.6 - 328.4 μg/L of all counties, which was higher than 100 μg/L. The urinary iodine median of men（223.2 μg/L） was slightly higher than that（210.2 μg/L） of female, no significant difference was observed（Z = - 1.76, P 〉 0.05）. Urinary iodine level changed little when child was younger than one year old（Z = - 0.624, P 〉 0.05）. Then the value dropped gradually after one year old（χ2 = 13.59, P 〈 0.05）, decreased with age by month, and the proportion of the value smaller than 100 μg/L was increased gradually. Urinary iodine level（257.5 μg/L） of child whose mother had taken iodine oil pills was higher than that （221.2 μg/L） of child whose mother had significant difference was observed（Z = - 2.54, P 〈 0.05）. The urinary iodine level （239.1 μg/L） of child who received breast feeding was higher than that （204.2 μg/L） of child without breast feeding among one year old and younger infants and babies, significant difference was observed （Z = - 2.74, P 〈 0.05）. Conclusions Current iodine level in iodized salt is probably higher than suitable in Ningxia, and the value could be decreased. It is unnecessary to strengthen iodine supp

关 键 词：碘 婴幼儿 营养状况 

分 类 号：R686[医药卫生—骨科学]