河北易县1993～2011年学龄儿童碘营养监测与评价

Evaluation on the effect of iodine nutrition monitoring among school-age children at Yixian County in 1993～2011

目的了解易县学龄儿童碘营养状况,为今后碘缺乏病防治提供科学指导。方法采用分层随机整群抽样的方法,抽取部分学龄儿童,对其进行甲状腺肿调查、尿碘监测和碘盐监测。并依据国家碘缺乏病消除标准和《碘缺乏病及其消除的评估指南》进行评估。结果儿童甲肿率由1993年的23.40%降到2011年的3.87%,降低了19.53个百分点。儿童尿碘中位数由1993年的88.23μg/L升高到2011年的204.12μg/L,提高了115.89μg/L。合格碘盐食用率由1993年的33.17%提高到2011年的98.14%,提高了64.97个百分点。结论易县儿童碘营养自1995年至2011年连续17年保持在供应充足状态。今后应继续加强碘营养的监测及防治工作。

Objective To understand iodine nutritional status among the school-age children at Yixian County for iodine deficiency disorders. Method The school-age children were chosen by stratified random cluster sampling method, the level of urinary iodine, goiter rate and iodized salt content were determined according to National Standard of Iodine Deficiency Disorders Elimination and Assessment Guide for Iodine Deficiency Disorders elimination. Results Median urine iodine rose from 88.23 u g/L in 1993 to 204.12 u g/L in 2011,rising by 115.89 u g/L. Goiter rate fell from 23.40% in 1993 to 3.87% in 2011, decreasing by 19.53%. Qualified iodized salt edible rate rose from 33.17% in 1993 to 98.14% in 2011, rising by 64.97%. Conclusion The children iodine nutrition at Yixian County maintains the state of an adequate supply from 1995 to 2011. Nutrition surveillance continues to be strengthened.