Koonin L M, Smith J C, Ramick M
MMWR CDC Surveill Summ. 1993 Dec 17;42(6):29-57.
Since 1980, the number of legal induced abortions reported to CDC has remained fairly stable, varying each year by < or = 5%.
This report summarizes and reviews data received by CDC for legal induced abortions obtained in 1990.
For each year, CDC compiles abortion data received from 52 reporting areas: 50 states, New York City, and the District of Columbia.
In 1990, 1,429,577 abortions were reported--a 2.4% increase from 1989. The abortion ratio for 1990 was 345 legal induced abortions per 1,000 live births, and the abortion rate was 24 per 1,000 women ages 15-44 years. Most women undergoing abortions were young, white, and unmarried; most had had no previous live births and were having the procedure for the first time. Approximately half of all abortions were performed before the 8th week of gestation, and 87% were before the 13th week of gestation. Younger women were more likely to obtain abortions later in pregnancy than were older women.
Since 1980, the national number (and rate) of abortions has remained relatively stable, with only small (< or = 5%) year-to-year fluctuations. However, since 1984, the national abortion ratio has declined; in 1990, the abortion ratio was the lowest recorded since 1977. Increasing rates of childbearing may account for some of this decline.
The number and characteristics of women having abortions are needed from all states to furnish an accurate characterization of legal induced abortion in the United States and to assist efforts to identify and reduce preventable causes of morbidity and mortality associated with abortions.
自1980年以来,向疾病控制与预防中心(CDC)报告的合法人工流产数量一直保持相当稳定,每年的变化幅度≤5%。
本报告总结并回顾了疾病控制与预防中心收到的1990年合法人工流产数据。
每年,疾病控制与预防中心汇总从52个报告地区收到的流产数据:50个州、纽约市和哥伦比亚特区。
1990年报告了1,429,577例人工流产——比1989年增加了2.4%。1990年的人工流产比率为每1,000例活产中有345例合法人工流产,流产率为每1,000名15 - 44岁女性中有24例。大多数接受人工流产的女性年轻、白人且未婚;大多数此前没有活产经历且是首次进行该手术。所有人工流产中约一半在妊娠第8周之前进行,87%在妊娠第13周之前进行。年轻女性比年长女性更有可能在妊娠后期进行人工流产。
自1980年以来,全国人工流产数量(和比率)一直相对稳定,每年仅有小幅度(≤5%)波动。然而,自1984年以来,全国人工流产比率有所下降;1990年,人工流产比率是1977年以来记录的最低水平。生育率上升可能是导致这种下降的部分原因。
需要所有州提供进行人工流产女性的数量和特征,以便准确描述美国合法人工流产情况,并协助努力识别和减少与人工流产相关的可预防发病和死亡原因。