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33,545名新生儿的先天性畸形与其母在怀孕前后使用避孕药有关。597名婴儿(17.8/1,000)明显畸形和4,046名(120.6/1,000)轻微畸形。8,522名婴儿的母亲在怀孕前曾使用口服避孕药,畸形明显的占17.2/1,000,而在怀孕前用其他方法或没有控制生育的畸形占15.0和20.1/1,000。在停用避孕药一个月内怀孕,畸形增加并不显著。850名婴儿受口服避孕药影响。宫内节育器脱落,杀精剂或安全期避孕失败对畸形没有明显变化。约20年前口服避孕药第一次进入市场时,几乎没有人想到会在妊娠中引致畸形,或妇女停止使用后的怀孕会留下后遗症。研究的结果再次证实怀孕前短期使用口服避孕药不发生明显的胎儿畸形,在宫腔内即使受口服避孕药影响也是很少。在先天缺陷与口服避孕药之间没有一个密切有力的联系。胎
Congenital malformations in 33,545 newborns are related to the use of contraceptives by their mother before and after pregnancy. 597 infants (17.8 / 1,000) had significant deformities and 4,046 (120.6 / 1,000) minor deformities. The mother of 8,522 infants used oral contraceptives prior to pregnancy, with a significant deformity of 17.2 / 1,000, while those with other methods or uncontrolled maternity before pregnancy accounted for 15.0 and 20.1 / 1,000. Contraceptives in the disabled within one month of pregnancy, abnormal increase is not significant. 850 infants affected by oral contraceptives. IUD shedding, spermicides or failing to contraception during the safety of no significant changes in deformity. When oral contraceptives first entered the market about 20 years ago, few thought of causing deformities during pregnancy or leaving sequelae after the woman stopped using it. The results of the study once again confirmed short-term use of oral contraceptives before pregnancy without significant fetal malformations in the uterine cavity even if the impact of oral contraceptives is very small. There is no close link between birth defects and oral contraceptives. fetal