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目的了解深圳市福田区孕妇碘营养状况,为科学补碘策略提供依据。方法在福田区按东、南、西、北、中5个方位各抽取1个街道办,每个街道办随机调查20名孕妇,记录姓名、年龄、孕期等信息,并采集随意一次性尿样和家中食用盐样,盐碘含量检测采用直接滴定法,尿碘含量检测采用砷铈催化分光光度法。结果共检测孕妇家庭食用盐201份,碘盐覆盖率为92.54%,合格碘盐食用率为85.07%,孕妇专用加碘盐食用率为1.49%,盐碘中位数为29.0mg/kg,2015年盐碘中位数比2013年低(Z=-3.816,P<0.05)。共检测孕妇尿样201份,尿碘中位数为158.0μg/L,其中尿碘<150μg/L的占46.27%(93/201)。食用不同含碘量碘盐的孕妇尿碘比较差异有统计学意义(χ~2=11.381,P<0.05),尿碘中位数随碘摄入增加而提高。结论需加大孕妇专用加碘盐的宣传及推行力度,加强孕期的碘营养指导,进一步细化科学补碘工作。
Objective To understand the status of iodine nutrition in pregnant women in Futian District of Shenzhen City and to provide basis for scientific iodine supplement strategy. Methods In Futian District, one street was taken from each of the five directions of East, South, West, North and Central. 20 pregnant women were randomly surveyed in each street, and the names, age, gestational age and other information were recorded. Random disposable urine samples And home salt samples, salt iodine content detection using direct titration, urinary iodine content detection using arsenic cerium catalytic spectrophotometry. Results A total of 201 pregnant women were tested for salt intake, iodized salt coverage was 92.54%, qualified iodized salt consumption rate was 85.07%, pregnant women dedicated iodized salt consumption rate was 1.49%, salt iodine median was 29.0mg / kg, 2015 Annual salt iodine median lower than in 2013 (Z = -3.816, P <0.05). A total of 201 urine samples from pregnant women were tested, and the median urinary iodine was 158.0 μg / L, of which urinary iodine <150 μg / L accounted for 46.27% (93/201). The urinary iodine in pregnant women with different iodine content was significantly different (χ ~ 2 = 11.381, P <0.05). The median urinary iodine increased with the increase of iodine intake. Conclusion It is necessary to intensify the publicity and promotion of iodized salt for pregnant women, strengthen iodine nutrition guidance during pregnancy, and further refine scientific iodization.