孕妇缺碘对婴儿生长发育的影响

THE EFFECT OF IODINE DEFICIENCY IN PREGNANT WOMEN ON THE PHYSICAL DEVELOPMENT OF THEIR INFANTS

本文调查了９５９例缺碘地区育龄妇女尿样中的尿碘。发现尿碘低于０．７８８μｍｏｌ／Ｌ（１００μｇ／Ｌ）者３４８例，占总体的３６．３％。其中孕妇３４７人，有１８１例尿碘低于０．７８８μｍｏｌ／Ｌ，占孕妇的５２．１６％。将缺碘孕妇分成缺碘不补碘（Ｂ组），和缺碘补碘组（Ｃ组），另设正常对照组（Ａ组）。跟踪孕妇至婴儿出生后六个月左右，测婴儿身长、体重、头围。结果，Ｃ组婴儿身长、体重、头圆与Ａ组比无明显差异，而Ｂ组婴儿身长、体重、头围均明显低于Ａ组。

ine hundred and fifty nine urine samples of young women from iodine deficiency area were collected and urinary iodine determined. Taking urinary iodine<0.788 μmol/L as iodine deficiency.36.3%of women were considered deficient.Among them,347 persons were pregnant with 52.16%of theindividuals in deficiency.It showed that pregnant women were at high risk of iodine eficiency disorders(IDD).Then we selected l50 pregnant women, divided into 3 groups:Group A as normal control, urinary iodine>0.788μmol/L.Group B and C IDD(urine iodine<0.788μmol/L or serum TSH>4.5 IU/L or goiter bearing),group C supplemented with iodine,while group B as placebo control.After birth, all infants were examined for 6 months,including body weight.,height and head circumference.The results showed:(1)the height, body weight.and circumference were lower in groupB than those in groups A and C(P<0.05).(2) Iodine supplement couldimprove the physical development of group C. There was no significantdifference between group A and C. So iodine supplementation couldimprove infants′ physical development.