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目的了解灵川县8~10岁儿童尿碘水平,分析其碘营养状况,为防治碘缺乏病提供理论参考。方法采用分层随机抽样方法采集灵川县12个乡镇600名8~10岁儿童的尿样,并用砷铈催化分光光度法测定尿碘的含量。结果尿碘中位数为275.81μg/L,8~10岁儿童尿碘中位数依次为273.45μg/L、277.39g/L和279.16μg/L,不同年龄儿童尿碘水平差异无统计学意义(χ~2=5.491,P>0.05)。尿碘含量<100μg/L的有73人,占12.16%;尿碘含量≥400μg/L的有125人,占20.84%。男童324人,尿碘中位数为283.47μg/L,尿碘含量<100μg/L的有47人,占14.51%;尿碘含量≥400μg/L的有61人,占18.82%;女童276人,尿碘中位数为270.91μg/L,尿碘含量<100μg/L的有26人,占9.42%;尿碘含量≥400μg/L的有64人,占23.19%。男女童尿碘含量差异有统计学意义(χ~2=5.348,P<0.01)。结论灵川县8~10岁儿童碘营养状况良好,尿碘中位数处于正常水平,但仍有小部分摄入碘量过低或过高,仍应加强对碘缺乏病的防治工作,强化科学补碘的重要性。
Objective To understand the level of urinary iodine in children aged 8 to 10 years in Lingchuan County and analyze the status of iodine nutrition in order to provide a theoretical reference for the prevention and treatment of iodine deficiency disorders. Methods Totally 600 urine samples from 8 to 10 years old were collected from 12 townships in Lingchuan County by stratified random sampling method. Urinary iodine content was determined by arsenic and cerium catalytic spectrophotometry. Results The median urinary iodine was 275.81μg / L, and the urinary iodine median of children aged 8-10 years was 273.45μg / L, 277.39g / L and 279.16μg / L, respectively. There was no significant difference in urine iodine level between children of different ages (χ ~ 2 = 5.491, P> 0.05). There were 73 urinary iodine <100μg / L, accounting for 12.16%. There were 125 urinary iodine≥400μg / L accounting for 20.84%. There were 324 boys, with a median urinary iodine of 283.47μg / L, 47 with urinary iodine <100μg / L, accounting for 14.51%; 61 with urinary iodine≥400μg / L, accounting for 18.82%; girls 276 People, urinary iodine median 270.91μg / L, urinary iodine <100μg / L of 26 people, accounting for 9.42%; urinary iodine content ≥ 400μg / L of 64 people, accounting for 23.19%. Urinary iodine content in boys and girls was significantly different (χ ~ 2 = 5.348, P <0.01). Conclusion The children of 8 ~ 10 years old in Lingchuan County have good iodine nutrition status and the median urinary iodine is in the normal level. However, there is still a small part of iodine intake too low or too high, and the prevention and cure of iodine deficiency disorders should be strengthened. The importance of scientific iodine.