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增补复合营养素不能改善不良妊娠结局

2013-04-11 付东红 健康报

  北京大学生育健康研究所与美国疾病预防控制中心慢病中心合作,历时5年,在我国北方地区开展了一项大规模研究。结果显示,增补复合营养素不能显著降低围产儿死亡率等不良妊娠结局的发生风险。相关研究论文发表在近日出版的《美国医学会杂志—内科》上。   论文责任作者、北京大学生育健康研究所刘建蒙教授近日向记者介绍,该研究于2006年~2011年在河北省的5个县开展,有近1.9万名怀孕20周以下的初产孕妇参

  北京大学生育健康研究所与美国疾病预防控制中心慢病中心合作,历时5年,在我国北方地区开展了一项大规模研究。结果显示,增补复合营养素不能显著降低围产儿死亡率等不良妊娠结局的发生风险。相关研究论文发表在近日出版的《美国医学会杂志—内科》上。

  论文责任作者、北京大学生育健康研究所刘建蒙教授近日向记者介绍,该研究于2006年~2011年在河北省的5个县开展,有近1.9万名怀孕20周以下的初产孕妇参加。参加者被分为3组:每天分别服用400微克叶酸、400微克叶酸+30毫克铁、400微克叶酸+30毫克铁+13种其他微量维生素和矿物质。研究发现,与单纯增补叶酸相比,增补叶酸+铁或复合微量营养素,并不能显著降低围产儿死亡率、低出生体重及早产等不良妊娠结局的发生风险,但能适度降低孕期贫血的发生。此前在我国西部地区和其他发展中国家也曾开展过类似研究,多数研究发现增补叶酸+铁或复合微量营养素能改善孕期贫血状况和降低低出生体重,部分研究还发现能降低胎婴儿死亡率。增补效果不同与孕妇基础营养状况、孕产期保健服务水平及服务利用情况有关。参加该项目的98%的孕妇有初中以上文化程度,平均体重指数为22.3,均没有中重度贫血,全部是住院分娩。

  刘建蒙认为,国际组织建议发展中国家妇女孕期增补叶酸,叶酸+铁或复合微量营养素。目前,我国政府只推荐增补叶酸,出台新的增补政策需全面、系统的科学数据作支持,孕妇是否需增补包含多种成分的复合微量营养素以及哪些人群适宜增补,还需进一步研究。

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    2015-02-27 xiaoai5777

    不错的文章,学习了

    0

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    2015-02-26 violetyjm

    要是能给出全文链接就更好了!

    0

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