平凉市孕妇微量元素的调查研究

An investigation of contents of trace elements in finger serum of pregnant women

目的了解平凉市孕妇在不同孕期微量元素的变化规律。方法按孕周将568名孕妇分为早孕（12周以内）、中孕（12-28周）、晚孕（28周以上）3个组，另选取103名正常体检非孕妇女为对照组，采用原子吸收分光光度法检测孕妇及对照组妇女全血中的微量元素含量，比较两组检测值。结果各组孕妇铜元素与对照组比较，无显著性差异（t分别为1、15、0．64、0．72，均P〉0．05）；锌、镁和铁元素在中孕组缺乏比例增高（t分别为8．85、6．00、6．88，均P〈0．01），晚孕组缺乏明显（t分别为8．89、5．50、8．38，均P〈0．01）；而钙元素早、中、晚3组均明显缺乏（t分别为3．50、3．33、4．00，P〈0．01）。结论孕妇应加强孕期保健，在不同孕期注意微量元素的补充。

Objective To investigate contents of trace elements of pregnant women in different trimesters of pregnancy in Pingliang city, Gansu province. Methods 568 pregnant women were divided into three groups according to gestational weeks ： the early pregnancy group （ 〈 12 weeks of gestation） and the middle pregnancy group （12-28 weeks of gestation）and the late pregnancy group （ 〉 28 weeks of gestation）. 103 healthy non-pregnant women were as controls. The contents of trace elements of all women were detected by using atomic absorption spectrophot＇ometry, and the results in all groups were compared. Results In content of CU, there was no significant difference between the three pregnancy groups and the control group （ t = 1.15, 0.64, 0.72, respectively, all P 〉 0.05 ）. As compared with the control group, the incidences of deficiencies in Zn, Mg and Fe in the middle pregnancy group were higher （ t = 8.85, 6.00, 6.88, all P 〈0.01） and deficiencies in Zn, Mg and Fe were significantly severe in the late pregnancy group （t = 8.89, 5.50, 8.38, respectively, all P 〈0.01）. While deficiency in Ca appeared obviously in all three pregnancy groups （ t = 3.50, 3.33, 4.00, respectively, all P 〈 0.01）. Conclusion Health care in gestational perid should be intensified and proper trace elements should be added in different trimester of pregnancy for the pregnant women.