泸州地区食用碘盐3年后甲状腺吸^(131)碘率试验的再评价

RE-EVALUATION OF THYROID ^(131)I UPTAKER(TIU) AFTER TAKING IODIZED SALT FOR THREE YEARS IN LUZHOU AREA

目的：探讨泸州地区食用含碘盐3年后对甲状腺吸131碘率测定的影响。方法：对定居泸州3年的125名健康自愿者测定吸131碘率，确定吸碘正常新标准，同期测定36例确诊的甲亢患者吸131碘率，用新旧标准进行分析比较。结果：泸州地区食用碘盐3年后吸131碘率降低，新旧标准显著差异P＜0．01，诊断甲亢的准确率从75％降至67％。结论：食用含碘盐致吸131碘率正常值下降，适时修正常值，加强对甲状腺功能试验的体外诊断，以提高甲状腺疾病的诊断准确率。

Objective: To inquire into the influence of taking iodized salt to TIU in Luzhou area.Method: TIU was measured in 125 healthy volunteers living in Luzhou area for three years and new normal criteria were set up. And at the same time TIU was also measured in 36 pahents with hrperthyroidism and they were analysed and compared with new and old criteria. Results: TIU was reduced after taking iodized salt for three years in Luzhou area. The difference between new and old standard is significant (p < 0. 01). and the accurate rate of diagnosis of hyperthyrodidism is decreased from 75% to 67%. Conclusions: Taking iodized salt can reduce the normal value of TIU, and its normal standard should be corrected accordingly in order to proinote accurate diagnostic rate of hyperthyroidism.