【摘要】 目的了解不同孕期妊娠妇女尿碘水平。方法于2007年11月—2008年5月,采取分层随机抽样的方法,选择碘缺乏的轻、中、重病区,随机抽取9个病区县市,每个病区按一定比例采集孕早、中、晚期孕妇一次性随机尿样30ml,用WS/T107—2006《尿中碘的砷铈催化分光光度法》测定尿碘水平。结果妊娠早、中、晚期孕妇尿碘中位数分别为289.4、265.8、219.2μg/L,达到WHO推荐适宜值,但尿碘水平<150μg/L的比例随着孕期的延长呈上升趋势。孕晚期尿碘<150μg/L的比例为28.3%。结论孕晚期妊娠妇女点营养状况应给予重点监控。更多还原

【Abstract】 Objective To study the levels of urinary iodine of pregnant women in different periods of pregnancy.Methods Based on the severity of iodine deficiency in Guizhou,mild,moderate and severe counties in iodine deficiency disorders(IDD) areas were selected with a stratified random sampling method.The pregnant women in early(n=57),middle(n=57) and late period(n=113) of pregnancy were randomly selected by a certain percentage from each IDD area.The urine sample of 30 ml was collected randomly from each pregnant woman for the determination of urinary iodine concentration(UIC) with As3 +-Ce4 + catalytic spectrophotometry(WS/T 107-2006).Results The medians of urinary iodine were 289.4,265.8 and 219.2 μg/L for women in early,middle and late period of pregnancy,which had achieved the range of the standard of WHO,but the percentage of urinary iodine of lower than 150 μg/L increased with the gestational period,and it could reach to 28.3% for women in late period of pregnancy.Conclusion Iodine deficiency in degrees has been found in a part of pregnant women in gestational periods in the present study,so more attention should be paid to the iodine nutrition in the pregnant women not only in the late period of pregnancy but also in the early period.更多还原