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目的了解碘缺乏病防治2009年与2015年乐山市8岁~10岁学龄儿童尿碘水平变化,掌握重点人群碘营养状况,引导科学补碘,为碘缺乏病防治工作提供理论依据。方法收集2009年和2015年乐山市8岁~10岁学龄儿童尿碘各1 100份,对监测结果进行分析。结果 2009年尿碘中位数为203.5μg/L,均值为206.4μg/L,各区县尿碘中位数为139.9μg/L~269.6μg/L,频数分布最多为42.3%,在200μg/L~300μg/L;2015年尿碘中位数为185.0μg/L,均值为200.3μg/L,各区县尿碘中位数为133.0μg/L~233.0μg/L,频数分布最多在100μg/L~200μg/L处(40.7%)。结论乐山市8岁~10岁学龄儿童尿碘中位数2015年比2009年略有下降,但仍然在合格水平,碘营养状况良好,但尿碘中位数略高,仍需加强碘缺乏病监测工作,强化学龄儿童健康教育。
Objective To understand the changes of urinary iodine levels in school-age children aged 8 to 10 years in Leshan City in 2009 and 2015. To understand the iodine nutrition status of key population, guide scientific iodization and provide theoretical basis for the prevention and treatment of iodine deficiency disorders. Methods A total of 1,100 urine iodine from 8-year-old to 10-year-old school-age children in Leshan City in 2009 and 2015 were collected. The monitoring results were analyzed. Results The median urinary iodine in 2009 was 203.5 μg / L, with an average of 206.4 μg / L. The median urinary iodine in each county was 139.9 μg / L ~ 269.6 μg / L with a maximum frequency of 42.3%. At 200 μg / L ~ 300μg / L; the median of urinary iodine in 2015 was 185.0μg / L, the average was 200.3μg / L, and the median urinary iodine in each county was 133.0μg / L ~ 233.0μg / L with the frequency distribution up to 100μg / L ~ 200μg / L (40.7%). Conclusions The median urinary iodine of school-age children aged 8 to 10 years in Leshan City dropped slightly from 2015 to 2009 but remains at the qualified level. The iodine nutrition status is good but the urinary iodine median is slightly higher. Monitoring work to strengthen the health education of school-age children.