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Am J Obstet Gynecol:高收入国家多种维生素使用能否降低不良出生结局风险?

2017-11-28 顾歆纯 环球医学

在高收入国家,健康饮食可以得到广泛获取。然而,高收入国家营养价值较低的低质量饮食导致妊娠期维生素摄入不足。2017年10月,发表在《Am J Obstet Gynecol.》的一项系统评价和荟萃分析调查了高收入国家多种维生素的使用与不良出生结局风险的相关性。

在高收入国家,健康饮食可以得到广泛获取。然而,高收入国家营养价值较低的低质量饮食导致妊娠期维生素摄入不足。2017年10月,发表在《Am J Obstet Gynecol.》的一项系统评价和荟萃分析调查了高收入国家多种维生素的使用与不良出生结局风险的相关性。

目的:研究者开展了一项系统评价和荟萃分析,以评价高收入国家多种维生素使用与不良出生结局风险(早产[主要结局]、低出生体重、小于胎龄儿、死产、新生儿死亡、围产期死亡率以及先天异常而没有进一步的规范)的相关性。

研究设计:使用妊娠、研究/试验类型,以及多种维生素的同义词,研究者检索了电子数据库(MEDLINE、Embase、Cochrane、Scopus和CINAHL)从建库至2016年6月17日的数据。考察高收入国家多种维生素使用(3种或更多维生素或矿物质片剂或胶囊)与出生不良事件之间相关性的所有研究符合纳入标准。研究者使用Cochrane Collaboration工具,评价了随机对照试验。使用Newcastle-Ottawa量表,评价观察性研究。对于至少2项研究结局的原始数据进行荟萃分析,并使用RevMan进行操作(5.3版)。使用随机效果模型,对结局进行合并。使用研究、评估、开发和评估等级(Grades of Research、Assessment、 Development and Evaluation)方法对证据的质量进行评价。

结果:研究者确定了35项合格的研究,涉及98926例女性。没有研究比较使用叶酸和铁与使用多种维生素。多种维生素的使用没有改变主要结局、早产(相对风险,0.84 [95%置信区间,0.69~1.03])的风险。然而,小于胎龄儿 (相对风险,0.77 [95%置信区间,0.63~0.93])、神经管缺陷(相对风险,0.67 [95%置信区间,0.52~0.87])、心血管缺陷(相对风险,0.83 [95%置信区间,0.70~0.98])、泌尿系统缺陷(相对风险,0.60 [95%置信区间,0.46~0.78])和肢体缺陷(相对风险,0.68 [95%置信区间,0.52~0.89])的风险降低。在35项确定的研究中,仅有4项为随机对照试验。根据研究、评估、开发和评估等级系统,除了神经管缺陷复发的证据强度为中等,所有结局的临床证据的强度较低或非常低。

结论:高收入国家可以推荐常规使用多种维生素,但因为证据治疗较低,需要警惕使用。需要良好的随机、对照试验或大型前瞻性队列研究。

原始出处:
Wolf HT, Hegaard HK, Huusom LD, et al.Multivitamin use and adverse birth outcomes in high-income countries: a systematic review and meta-analysis.Am J Obstet Gynecol. 2017 Oct;217(4):404.e1-404.e30. doi: 10.1016/j.ajog.2017.03.029. Epub 2017 Apr 2.

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    2018-03-24 zhaojie88
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    2017-11-28 131****1460

    学习了受益匪浅

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