MMWR Morb Mortal Wkly Rep. 1991 Nov 29;40(47):817-8.
In 1989, 1,396,658 legal abortions were reported to CDC from the 50 states, the District of Columbia, and New York City, an increase of 1.9% over the number reported for 1988. In 1989, the national abortion ratio was 346 legal abortions per 1000 live births, a decrease from 352 legal abortions per 1000 live births in 1988. The national abortion rate (number of legal abortions per 1000 women aged 15-44 years) for 1989 was 24, the same as for 1988. As in previous years, approximately 91% of women who had a legal abortion were residents of the state in which the procedure was performed.
1989年，美国50个州、哥伦比亚特区和纽约市向疾病控制与预防中心（CDC）报告了1396658例合法堕胎案例，较1988年报告的数量增加了1.9%。1989年，全国堕胎比率为每1000例活产中有346例合法堕胎，低于1988年每1000例活产中有352例合法堕胎的比率。1989年全国堕胎率（每1000名15至44岁女性中的合法堕胎数）为24，与1988年相同。与往年一样，进行合法堕胎的女性中约91%是手术实施所在州的居民。
