Pediatrics:二胎生育时机与后代孤独症

2015-09-25 Mechront 译 MedSci原创

现在生二胎已经不用偷偷摸摸了,也不是什么了不起的稀罕事,三胎都成群报团出现了。随着二胎政策的透明化公开化,二胎的需求虽没有呈指数式增长,却也是有该市场的存在。政策告诉了你可以生二胎了,放宽心,不同偷摸,不会罚款,政府鼓励,可是却没有告诉你,第一胎和第二胎之间间隔多久算科学。二胎也不是可以乱生的。Zerbo O等人就该问题进行了一项研究,主要研究内容为:本次妊娠与上次妊娠间隔时间(IPIs)的长短与

随着二胎政策的透明化、公开化,二胎的需求虽没有呈指数式增长,却也是有该市场的存在。政策告诉了你可以生二胎了,放宽心,不同偷摸,不会罚款,政府鼓励,可是却没有告诉你,第一胎和第二胎之间间隔多久算科学。二胎也不是可以乱生的。

Ousseny Zerbo等人就该问题进行了一项研究,主要研究内容为:本次妊娠与上次妊娠间隔时间(IPIs)的长短与后代患孤独症(ASD)风险。孤独症又称自闭症或孤独性障碍等,是广泛性发育障碍的代表性疾病。该病一般起病于36个月以内,主要表现为三大类核心症状,即:社会交往障碍、交流障碍、兴趣狭窄和刻板重复的行为方式。

该研究纳入了2000-2009年出生于加州北部凯萨医疗机构(KPNC)的45261儿童,根据KPNC的电子医疗记录按照ICD-9编码299.0、299.8、299.9对ASD儿童进行诊断。研究者对两胎间隔时间定义为:第一胎新生儿的出生时间到第二胎受精卵的形成时间。研究者通过生存分析、逻辑回归模型对获得的数据进行统计学分析,以评估IPI与第二个孩子ASD风险的关系。

数据分析结果表明,IPI <12 个月或 ≥72 个月出生的孩子,比IPI在36-47个月之间的出生的孩子,ASD风险高出了2-3倍。以下列出不同IPI出生的儿童的ASD风险值:IPI<6个月,HR=3.0 (1.9-4.7);IPI在6-8个月,HR = 2.1 (1.4-3.3);IPI在9-11个月,HR= 1.9 (1.3-2.1);IPI在12-23个月,HR=1.5 (1.1-2.1);IPI≥72 个月,HR= 2.4 (1.5-3.7)。对于以上研究数据结果,孕妇BMI不能解释该结果,同时孕妇BMI变化、伴侣年龄、孕产妇抑郁药物使用、孕早中期不利事件的发生等也均不能解释以上研究结果。

最后研究者认为这一胎距离上一胎时间间隔小于2年或者大于6年,均会导致后代孤独症风险增加。具体机制仍不明确,研究只是揭露了一种现象,还需要进一步更多的研究。简而言之就是,想生二胎的人不能太早也不能太晚,究竟是为什么,现在还不知道,只能告诉你这么多。

原始出处:


Zerbo O, Yoshida C, Gunderson EP, Dorward K, Croen LA. Interpregnancy Interval and Risk of Autism Spectrum Disorders. Pediatrics. 2015.

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    2016-01-21 hbwxf
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    2015-12-27 feather89
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