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新生儿染色体异常发生率的调查,国外已有八个用常规染色体技术、一个用 G 显带技术的调查资料。国内尚无报告。我们自1979年5月3日开始,用染色体 G 式显带技术对长沙市北区三个医院连续出生的新生儿脐血标本作了染色体检查,以探讨中国人群中染色体异常的发生率,至1981年5月19日止共完成2079人的检查,已肯定的染色体异常共15例。他们的核型见表1
Neonatal chromosomal abnormalities in the survey, there are eight foreign countries using conventional chromosome technology, one with G-banding technology survey data. There is no domestic report. We started from May 3, 1979, using chromosome G-banding technology in the three hospitals in northern district of Changsha consecutive birth of neonatal cord blood samples were examined to explore the Chinese population the incidence of chromosomal abnormalities, to May 19, 1981 a total of 2079 people completed the inspection, a total of 15 confirmed cases of chromosomal abnormalities. Their karyotypes are shown in Table 1