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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30.30 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;<50.00μg/L者占16.46%(128/780),50.00～99.00μg/L者占21.28%(166/780),100.00~199.00μg/L者占26.92%(210/780),200.00～299.00μg/L者占17.44%(136/780),300.00μg/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(x2=5.44,P>0.05)。以县(区)计算,尿碘中位数<99.00μg/L有2个县(区),占25.00%;100.00～199.00μg/L有4个县(区),占50.00%;200.00～299.00μg/L有2个县(区),占25.00%;不同县(区)之间尿碘比较,差异有统计学意义(x2=128.77,P<0.01)。结论平顶山市人群碘营养不足,需要加强补碘措施的落实。
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 30.30 mg / kg. The coverage of iodized salt was 91.07%. The eligible iodized salt content was 84.82%. A total of 780 urine samples were collected from 8 to 10 years old children. The urinary iodine median was 146.61μg / L, the number of urinary iodine was less than 50.00μg / L, accounting for 16.46% (128/780), the median of urinary iodine was 21.28% (166/780), the range of 50.00-99.00μg / L was 100.00-199.00μg / L , Accounting for 26.92% (210/780), accounting for 17.44% (136/780) in the range of 200.00-299.00μg / L, and 17.95% (140/780) in the group of 300.00μg / L or more; The difference was not statistically significant (x2 = 5.44, P> 0.05). Calculated by county (district), there are 2 counties (districts) with urinary iodine median <99.00μg / L, accounting for 25.00%; 4 counties (districts) with 100.00 ~ 199.00μg / L accounting for 50.00%; 200.00 ~ 299.00 There were 2 counties (districts) in μg / L, accounting for 25.00%. There was significant difference in urinary iodine among different counties (area) (x2 = 128.77, P <0.01). Conclusion The iodine nutrition of the population in Pingdingshan City is insufficient, so it is necessary to strengthen the measures of iodine supplement.