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1990年，对9129名0-14岁儿童遗传病值况做了调查．发现遗传病及先天畸形共22种81例，患病率为8．87‰，山区及平原患病率分别为8．66‰和8．98‰。，二者无明显差异（P＞0．05），而近亲组及非近亲组儿童道传病患病率分别为102.85‰和7．04‰，有非常显著差异（P＜0．01），年龄越大者发病率越高．
In 1990, 9,129 children aged 0-14 were surveyed for their genetic status. A total of 22 kinds of genetic diseases and congenital malformations were found in 81 cases, the prevalence was 8.87 ‰, and the prevalence rates in mountainous and plain areas were 8.66 ‰ and 8.98 ‰, respectively. (P> 0.05), while the prevalence rates of pathogenicity among the close relatives and non-close relatives were 102.85 ‰ and 7.04 ‰, respectively, with significant difference (P <0.01) The older the higher the incidence.