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目的了解平顶山市人群碘营养状况,为制订防治措施提供科学依据。方法 2011年,在平顶山市8个县(区)中,每个县(区)抽取9个乡(镇),每个乡(镇)中采集36份居民家中食用盐,采用碘酸钾直接滴定法检测盐碘;每个县(区)按照东、西、南、北、中5个方位各抽取1个乡(镇),每个乡(镇)抽取20名8~10岁儿童,采集尿样,用砷铈催化分光光度法测定尿碘。结果平顶山市共抽取居民户食盐2 193份,碘盐中位数为30.3 mg/kg,碘盐覆盖率为91.07%,合格碘盐食用率为84.82%。共调查8~10岁儿童780份尿样,尿碘中位数为146.61μg/L;<50μg/L者占16.46%(128/780),50~99μg/L者占21.28%(166/780),100~199μg/L者占26.92%(210/780),200~299μg/L者占17.44%(136/780),300μg/L以上者占17.95%(140/780);各年龄组之间尿碘比较,差异无统计学意义(χ2=5.44,P>0.05)。以县(区)计算,尿碘中位数<99μg/L有2个县(区),占25%;100~199μg/L有4个县(区),占50%;200~299μg/L有2个县(区),占25%;不同县(区)之间尿碘比较,差异有统计学意义(χ2=128.77,P<0.01)。结论目前平顶山市人群碘营养水平基本适宜,应继续加强碘营养水平监测。
Objective To understand the status of iodine nutrition in Pingdingshan population and provide a scientific basis for making prevention and control measures. Methods In 2011, 9 townships (towns) were sampled from 8 counties (districts) in Pingdingshan City, and 36 households were sampled from each township (town). Potassium iodide was directly titrated Method to detect salt and iodine. Each county (district) draws 1 township (town) from 5 directions of east, west, south, north and south. Twenty children aged 8 to 10 are collected from each township (town) Like, with arsenic cerium catalytic spectrophotometric determination of urinary iodine. Results A total of 2 193 household salt samples were collected from Pingdingshan City. The median of iodized salt was 30.3 mg / kg. The iodized salt coverage was 91.07%. The qualified iodized salt consumption rate was 84.82%. A total of 780 urine samples were collected from 8 to 10-year-old children and the urinary iodine median was 146.61μg / L; those with <50μg / L accounted for 16.46% (128/780); those with 50-99μg / L accounted for 21.28% (166/780 ), Those with 100 ~ 199μg / L accounted for 26.92% (210/780), those with 200 ~ 299μg / L accounted for 17.44% (136/780) and those with 300μg / L accounted for 17.95% (140/780) Between the urine iodine comparison, the difference was not statistically significant (χ2 = 5.44, P> 0.05). In counties (districts), there are 2 counties (districts) with urinary iodine median <99μg / L, accounting for 25%; 4 counties (districts) with 100 ~ 199μg / L accounting for 50%; 200 ~ 299μg / L There are 2 counties (districts), accounting for 25%. There are significant differences in urinary iodine between different counties (χ2 = 128.77, P <0.01). Conclusion At present, the iodine nutrition level in Pingdingshan City is basically suitable, and the monitoring of iodine nutrition level should be strengthened.