【摘要】：目的了解2012—2014年浙江省玉環(huán)縣8~10歲兒童尿碘水平以及食用鹽碘含量狀況及變化。方法采用重復橫斷面調(diào)查設計,于2012—2014年對浙江省玉環(huán)縣兒童開展3次橫斷面調(diào)查,以分層整群抽樣的方法選定玉環(huán)縣某小學3~5年級(8~10歲)9個班(每年級3個班)所有學生,收集晨尿及家庭食用鹽,檢測晨尿尿碘水平及食用鹽碘含量。結果 1343名學生尿碘中位數(shù)為116.0μg/L,尿碘含量50μg/L、100μg/L和≥300μg/L分別占4.8%、38.6%和3.5%,未發(fā)現(xiàn)兒童尿碘水平和分布的不同年份、性別和年級的統(tǒng)計學差異。檢測食用鹽1343份,鹽碘中位數(shù)為0.0 mg/kg,碘鹽覆蓋率、碘鹽合格率、合格碘鹽食用率分別為22.8%、89.5%和20.4%,2012—2014年的合格碘鹽食用率分別為25.1%、21.8%和14.2%,逐年降低,差異有統(tǒng)計學意義(χ2=20.232,P0.001)。鹽碘與尿碘的平均水平及含量分布均有統(tǒng)計學關聯(lián),Spearman相關分析顯示鹽碘與尿碘呈弱正相關關聯(lián)(r=0.135,P0.001)。結論 2012—2014年浙江省玉環(huán)縣8~10歲兒童碘營養(yǎng)狀況總體上是平穩(wěn)、適宜和安全的,但碘鹽覆蓋率過低。
[Abstract]:Objective to investigate the urinary iodine level and salt iodine content in children aged 8 to 10 years from 2012 to 2014 in Yuhuan County, Zhejiang Province. Methods three cross-sectional surveys were conducted on children in Yuhuan County of Zhejiang Province from 2012 to 2014 by repeated cross-sectional survey design. A stratified cluster sampling method was used to select all students from 9 classes (3 classes per grade) in grade 3 ~ 5 (8 ~ 10 years old) in a primary school in Yuhuan County. Morning urine and household edible salt were collected and the iodine level in urine and iodine content in edible salt were measured. Results the median of urinary iodine in 1343 students was 116.0 渭 g / L, and the urinary iodine content of 50 渭 g / L and 鈮，

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