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延安地区3个乡镇7～14岁小学生4460名碘缺乏病甲状腺肿大率为17．51％，患病率1．22％，以未推广碘盐的子长县冯家屯乡学生肿大率和患病率均高。151名学生尿碘中位数为33．86μg／L，尿碘＜50μg／L，者112人，占90．66％．已推广碘盐多年的黄陵县店头乡学生尿碘中位数仅25．56μg／L．尿碘50μg／L者所占比重最大。按1989年碘缺乏病基本控制的国家标准衡量．肿大率虽在标准之下．但尿碘水平却远低于标准，说明人群摄碘量不足。为此．必须全面推广碘盐并加强对碘质量的监测监督，杜绝非碘盐冲击市场．广泛宣传群众．以提高购买碘盐的自觉性。
Yanan three township 7 to 14-year-old primary school students 4460 iodine deficiency goiter rate was 17.51%, the prevalence of 1.22%, not to promote the iodized salt in the town of Fengjiatun Fengzitun students swollen rate and risk The rates are high. The median urinary iodine concentration of 151 students was 33.86 μg / L, urinary iodine <50 μg / L, and 112 persons, accounting for 90.66%. The median urinary iodine of students in Shentou Township, Huangling County, which has been promoting iodized salt for many years, was only 25.56μg / L. Urinary iodine 50μg / L accounted for the largest proportion. Measured by the national standards for the basic control of iodine deficiency disorders in 1989. Although the rate of swelling under the standard. However, the level of urinary iodine is far below the standard, indicating insufficient intake of iodine in the population. to this end. We must comprehensively promote iodized salt and strengthen the monitoring and supervision over the quality of iodine to prevent non-iodized salt from impacting the market. Extensive publicity to the masses. To enhance the consciousness of purchasing iodized salt.