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目的 研究碘缺乏病区学龄儿童在全民食盐加碘前后生长发育状况。方法 对该地区 7～ 14岁儿童(食盐加碘前 2 47人 ,食盐加碘后 2 11人 )测定身高、下部量、体重 ,并计算 Roherer指数 ,测定尿碘。结果 食盐加碘前儿童尿碘中位数平均水平 2 6 .1μg/ L,其中 >10 0 μg/ L 者占 5 .4% ;食盐加碘后儿童尿碘中位数平均水平 384.7μg/ L,>10 0 μg/ L 者占 95 .2 %。提示碘营养差状态改善 (P <0 .0 0 1)为碘营养充足。食盐加碘后高年龄组儿童身高较食盐加碘前同年龄、同性别组儿童增加 ,尤以下部量为显著 (P <0 .0 5～ 0 .0 0 5 )。体重及单位体积体重(Roherer指数 )较食盐加碘前同年龄同性别儿童显著升高 (P <0 .0 5～ 0 .0 0 5 )。高年龄组见 Roherer指数与尿碘水平 (0 .5 5～ 10 0 3.6 7μg/ L 范围内 )显著正相关 (r =0 .5～ 0 .6 ,P <0 .0 0 5 )。结论 全民食盐加碘对儿童生长发育有促进作用并使原有的缺碘亚临床损伤得到改善。
Objective To study the growth and development of school-age children in iodine-deficiency ward before and after the universal salt iodization. Methods Height, lower body weight and body weight were measured in children aged 7-14 years old (salt intake of 247 before salt iodization and 21 1 after salt iodization). The Roherer index was calculated and urine iodine was measured. Results The average urinary iodine before children iodized salt was 26.1μg / L, of which> 100μg / L accounted for 5.4%. The median urinary iodine of children after iodized salt was 384.7μg / L ,> 10 0 μg / L accounted for 95.2%. Prompted iodine poor nutritional status improved (P <0.001) for adequate iodine nutrition. Children of high age group after salt iodization increased compared with the same age before salt iodization and same sex group children, especially the lower volume was significant (P <0.05 ~ 0.05). Body weight and body mass index (Roherer index) were significantly higher than those of same-age children before salt iodization (P <0.05 ~ 0.500). In the higher age group, the Roherer index was significantly and positively correlated with urinary iodine level (0.55 ~ 10 0 3.6 7μg / L) (r = 0.5 ~ 0.6, P <0.05). Conclusion The universal salt iodization can promote the growth and development of children and improve the original subclinical iodine deficiency.