据全国妇幼卫生监测结果统计,我国出生缺陷发生率从1996年的87.3/万上升到2004年的128.38/万〔1〕,每年有20～30万肉眼可见先天畸形儿出生,加上出生后数月和数年才显现的缺陷,先天残疾儿童总数高达80～120万,先天残疾儿童占每年出生人口总数的4%～6%〔2〕。我国出生缺陷高发的 According to the statistics of the national maternal and child health monitoring results, the incidence of birth defects in our country increased from 87.3% in 1996 to 128.38% in 2004 [1]. There are between 200,000 and 300,000 births of congenital malformations per year and the number of postnatal births Month and years before the flaws appeared, the total number of children with congenital disabilities as high as 80 to 1.2 million, children with congenital disabilities accounted for 4% to 6% of the total number of births every year [2]. Birth defects in our country