摘要
目的了解食用盐碘含量标准调整前后宁波市海曙区居民碘盐覆盖情况和学龄儿童碘营养状况。方法将2010—2016年分为3个时期：调整前期（2010、2011年）、调整期（2012—2014年）和调整后期（2015、2016年），在宁波市海曙区采集3个时期居民家庭食用盐盐样，检测盐碘含量，计算碘盐覆盖率、合格碘盐食用率；收集8-10岁学龄儿童尿样，检测尿碘含量。结果3个时期分别采集盐样600、900、615份，盐碘中位数分别为27．30、23．50、23．10mg／kg，碘盐覆盖率分别为97.83％（587／600）、94．67％（852／900）和84．72％（521／615），合格碘盐食用率分别为96．50％（579／600）、92．11％（829／900）和74．63％（459／615）。各时期间碘盐覆盖率和合格碘盐食用率比较差异均有统计学意义（χ^2=86．13、162．57，P均〈0．01），且均呈下降趋势（χ^2趋势=77．34、141．11，P均〈0．01）。3个时期学龄儿童尿碘中位数分别为171．18、161．95、186．07μg／L，各时期间尿碘比较差异有统计学意义（H=11．81，P〈0．01）。结论食盐加碘标准调整后，宁波市海曙区碘盐覆盖率和合格碘盐食用率均呈现下降趋势，但学龄儿童碘营养状况总体处于适宜状态。
Objective To investigate the coverage rate of iodized salt and the nutritional status of school- aged children before and after adjustment of salt iodine concentration in Haishu District, Ningbo City. Methods The observation period （2010 - 2016） was divided into three sub-periods： before the adjustment （2010, 2011）, adjustment period （2012 - 2014） and after the adjustment （2015, 2016）. Household salt samples and urine samples of school-aged children aged 8 - 10 were collected during the 3 periods in Haishu District, Ningbo City, and the iodized salt coverage rate, qualified iodized salt consumption rate, urinary iodine concentration were determined. Results Totally 600, 900 and 615 household salt samples were collected in the 3 periods, respectively. The medians of salt iodine in the 3 periods were 27.30, 23.50 and 23.10 mg/kg; while the iodized salt coverage rates were 97.83% （587/600）, 94.67% （852/900） and 84.72% （521/615）, and the qualified iodized salt consumption rates were 96.50% （579/600）, 92.11% （829/900） and 74.63% （459/615）, respectively. There were significant differences in the iodized salt coverage rates and qualified iodized salt consumption rates among the 3 periods （χ^2 = 86.13, 162.57, P 〈 0.01）; and significant decreases of the iodized salt coverage rates and qualified iodized salt consumption rates were observed in the 3 periods （χ^2trend = 77.34, 141.11, P 〈 0.01）. The median urinary iodine concentration of the school-aged children in the 3 periods were 171.18, 161.95 and 186.07 μg/L; the differences of urinary iodine were statistically significant among the 3 periods （H = 11.81, P 〈 0.01）. Conclusions In Haishu District, significant decreases of the iodized salt coverage rates and qualified iodized salt consumption rates are observed after the adjustment of salt iodine concentration. However, the iodine nutrition is adequate in school-aged children.
出处
《中华地方病学杂志》
CSCD
北大核心
2017年第12期883-887,共5页
Chinese Journal of Endemiology
关键词
碘
盐类
儿童
尿
Iodine
Salts
Child
Urine
