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为评估试管婴儿(IVF)的新生儿后果和先天畸形的患病率,采用配对比较的方法对在芬兰北部地区的试管婴儿进行了一个基础人口的研究。首先,收集1990～1995年出生的304例试管婴儿与普通人群中的569例进行配对比较,对照组在多胎产的比例上代表一般的人口,并且从芬兰医学出生登记上(FMBR)随机选择,并从其性别、出生年、居住地、产次、母亲的年龄和社会地位等方面进行比较。其次,从FMBR中随机选择多重配对对照(N=103)与IVF双胎(n=103)进行比较(?)分
To assess the neonatal consequences of in-vitro fertilization (IVF) and the prevalence of congenital malformations, a population-based study of IVF-administered IVF in northern Finland was conducted using a paired comparison. First, a sample of 304 IVF-born babies from 1990 to 1995 was compared with 569 of the general population. The control group represented the general population at multiple births and was randomly selected from the Finnish Medical Birth Registry (FMBR) And compare their gender, birth year, place of residence, parity, mother’s age and social status. Second, a randomized multiple paired control (N = 103) from FMBR was compared (?) With IVF twins (n = 103)