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目的 探讨实施全民食盐加碘(USI)措施后,贵州省儿童甲状腺肿(甲肿)及其消长规律。方法 2001年4月采用点面结合的“典型调查”方法调查贵州省儿童的甲状腺肿情况,2003年10月采用群体追踪调查的方法,对2001年调查的同一人群开展甲肿消长情况的流行病学现况追踪调查。 结果 2003年共有效追踪调查了1 702名学生。其中在240例原检出Ⅰ度甲肿的学生中,139例转变为正常,转变率57.92％。15例转变Ⅱ度,转变率为6.25％。86例未改变,占35.83％。在28例原检出Ⅱ度甲肿的学生中,7例转为正常,2例转为Ⅰ度,总体转变率42.86％。在追踪调查的1 434名正常学生中,新发甲肿率为6.69％。结论 贵州省8-10岁儿童甲肿率逐年下降,但降幅非常缓慢,儿童甲肿多数会随时间推移自行减轻或恢复正常,只有少数会加重。
Objective To investigate the rule of children’s goiter and their growth and decline in Guizhou Province after the implementation of universal salt iodization (USI) measures. Methods In April 2001, we investigated the situation of goiter among children in Guizhou Province by the method of “typical survey ” combined with point - by - point method. In October 2003, using the method of group follow - up survey, Follow-up epidemiological survey. Results A total of 1 702 students were successfully traced in 2003. Among 240 students with grade Ⅰ and grade Ⅰ, 139 changed to normal with a change rate of 57.92%. 15 cases transition degree Ⅱ, the conversion rate of 6.25%. 86 cases did not change, accounting for 35.83%. Among the 28 students with grade Ⅱdegree, 7 cases turned normal, 2 cases turned to Ⅰ degree, and the overall rate of change was 42.86%. Among the 1 434 normal students who traced the survey, the rate of new-onset goiter was 6.69%. Conclusion The rate of goiter among children aged 8-10 years in Guizhou province has been decreasing year by year, but the rate of decline is very slow. Most children with goiter will relieve or normalize over time, and only a few will worsen.