保定市待产孕妇与其新生儿碘营养状况调查分析

目的了解实行加碘盐10周年以来以保定市区孕产妇及其新生儿碘营养状况。方法用砷铈接触法测定180名待产孕妇尿碘，用放射免疫分析法测定其孕妇所产新生儿脐带血甲状腺素（T4）、促甲状腺激素（TSH）。结果待产孕妇尿碘中位数为741．91μg／L，〈1001μg／L者仅占3．2％。新生儿脐带血清T4为（149．69±54．56）nmol／L，在正常范围（54～174nmol／L）者占71．2％，超过174nmol／L者占28．8％。脐带血清TSH〈5mIU／L者占89.4％，TSH〉5mIU／L者占10．6％，其中女婴与男婴相比，差异有显著意义（P〈0．025）。在TSH〉5mIU／L者中有57．1％的人尿碘含量〉1000μg／L。孕妇妊娠反应〈3个月者T4超过正常值上限者较多，与〉3个月者相比差异有显著意义（P〈0．05）。孕妇问卷调查表明，孕妇常吃海产品占25．4％，常吃海带、紫菜占12．7％，体重增加10kg以上者占46．0％。结论保定市区孕产妇及新生儿碘营养状况良好，尿碘较高，较多人有碘过剩现象，提示应注意防止高碘问题。

A study on the nutritional status of iodine for prepartal women and their neonates in Baoding

Objective To Study the nutritional status of iodine for prepartal women and their neonates in Methods The urinary iodine of prepartal women and neonatal umbilical cord serum thyroxine were determined. Results The median of urinary iodine was 741.9μg/L. The proportions with 100μg/L were 96.8% and 〈100μg/L were only 3.2%.The neonatal umbilical cord serum thyroxine （T4） Baoding. and TSH urinary iodine〉 （T4） level was （149.69±54.56）nmol/L. 71.2% neonates level were range 54-174nmol/L, 28.8% neonates were above 174nmol/L. The proportion with neonates TSH〉5mIU/L was 10.6%. The results indicated 25.4% pregnant women often ate sea foods and 12.7% often ate kelp and laver. Conclusions The prepartal women arid their neonates have good nutrition status of iodine and prepartal women have excessive iodine in body in Baoding.