AIM:H1N1流感疫苗会增加后代先天性畸形的风险?或许有其他因素在作怪

2016-09-20 MedSci MedSci原创

之前的研究报告了在怀孕期间接种H1N1流感疫苗女性的后代有先天性畸形的风险,但这些研究并没有考虑家族混杂因素(遗传和环境)的潜在影响。该研究的目的是评估女性在怀孕期间接种H1N1流感疫苗和后代畸形之间的关联,并将家族性因素考虑在内。来自瑞典的研究人员在瑞典开展了一项以人群为基础的前瞻性研究。该研究纳入了在2009年10月1日至2011年10月1日期间出生的活产婴儿,这些婴儿的妈妈在怀孕期间接受过单

之前的研究报告了在怀孕期间接种H1N1流感疫苗女性的后代有先天性畸形的风险,但这些研究并没有考虑家族混杂因素(遗传和环境)的潜在影响。

该研究的目的是评估女性在怀孕期间接种H1N1流感疫苗和后代畸形之间的关联,并将家族性因素考虑在内。

来自瑞典的研究人员在瑞典开展了一项以人群为基础的前瞻性研究。该研究纳入了在2009年10月1日至2011年10月1日期间出生的活产婴儿,这些婴儿的妈妈在怀孕期间接受过单价AS03佐剂H1N1流感疫苗(Pandemrix[葛兰素史克])。共有40983名婴儿在出生前暴露疫苗,14385名婴儿在妊娠早期(14周)内暴露疫苗,7502名婴儿在妊娠前8周暴露疫苗。研究人员将暴露疫苗的后代与197588名未暴露的后代进行了比较,并对暴露与未暴露的兄弟姐妹进行了相应风险的比较。

主要检测指标为先天性畸形,表现为先天性心脏病,唇腭裂,和肢体缺陷。

共有2037(4.97%)名暴露疫苗的后代和9443(4.78%)名未暴露疫苗的后代发生先天畸形。在暴露疫苗的后代中,调整后先天性畸形的风险为4.98%,未暴露疫苗的后代调整后风险为4.96%(风险差异,0.02%[95%CI,-0.26%至0.30%)]。在妊娠前期接种疫苗的相应风险差异为0.16%(CI,-0.23%至0.56%),在前8周接种疫苗的相应风险差异为0.10%(CI,-0.41%至0.62%)。兄弟姐妹之间的比较无统计学显著风险差异。

该研究具有一定的限制性:这项研究主要基于活产儿,而流产或人工流产的数据可能影响研究结果。对于具体畸形分析的研究力量也是有限的。

当把家庭内部因素考虑在内时,虽然具体畸形的风险增加不能完全排除,但怀孕期间接种H1N1流感疫苗似乎不会影响后代的整体先天畸形。

原始出处:

Jonas F. Ludvigsson,Peter Ström,Cecilia Lundholm,et al.Risk for Congenital Malformation With H1N1 Influenza Vaccine,AIM,2016.9.20


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    2016-09-21 wushaoling
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    2016-09-21 huirong
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    2016-09-21 TZF0806
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    2016-09-20 医路开来

    学习啦,,,

    0