这美国实施的堕胎数量根据疾病控制和预防中心的新数据，2020年有所下降。

这年度报告疾病预防控制中心周三发布的,《堕胎在美国有多普遍》,以及谁在接受堕胎手术。

2020年期间，总共报告了620，327例堕胎，比2019年下降了2%。这个数据包括了除加利福尼亚、马里兰和新罕布什尔之外的每一个州。

2020年，15岁至44岁女性的堕胎率也降至11.2‰，低于上一年的11.4‰。

2020年，20多岁的女性占堕胎总数的一半以上，为57.2%。具体而言，25至29岁的妇女占堕胎者的29.3%，20至24岁的妇女占27.9%。

此外，根据该报告，在当年堕胎的所有女性中，86.3%未婚，60.9%已经至少有一个孩子。

相比之下，15岁以下的青少年和40岁以上的女性在2020年堕胎数量最少，分别为0.2%和3.7%。

当按种族和民族来看美国的堕胎情况时，可以看到巨大的差异。

尽管白人女性和黑人女性在2020年堕胎数量最多，各占约三分之一，但比率却有很大差异。

黑人妇女的堕胎率几乎是白人妇女的四倍，每1 000名黑人妇女有24例堕胎，而每1 000名白人妇女有6.2例堕胎。

此外，尽管西班牙裔女性在2020年实施的堕胎中所占比例较小，为21%，但堕胎率是白人女性的1.8倍，每1000名西班牙裔女性中有11.4例堕胎。

据疾病预防控制中心称，这些差异的原因包括获得计划生育服务的不平等、贫困和对医疗系统的不信任。

该报告还调查了妇女接受堕胎时的怀孕时间。2020年的绝大多数堕胎，80.9%，是在怀孕9周或之前进行的。2020年，93.1%的堕胎是在孕中期之前进行的。

2020年，大约一半的堕胎(51%)是药物流产，其次是13周或之前的手术流产(40%)。

此外，该报告讨论了2011年至2020年的堕胎趋势。数据显示，堕胎总数下降了15%，每1000名妇女的堕胎率下降了18%，所有年龄组的堕胎率都有所下降。

Abortion rights demonstrator Stacy Holloway and anti-abortion demonstrators protest outside Northland Family Planning ahead of the midterm election which contains a ballot measure known as Proposal 3, which would codify the right to abortion, in Westl...Show moreundefined

Evelyn Hockstein/路透社

特别是，15至19岁青少年的堕胎率下降幅度最大，在2011年至2020年间下降了48%。

作者没有说明2020年的下降是否是因为新冠肺炎疫情的限制，也没有讨论2020年后会发生什么最高法院推翻了罗伊诉韦德案这保证了堕胎的宪法权利。

然而，他们确实写道，堕胎监督是“帮助评估旨在促进美国公平获得以患者为中心的避孕护理的项目，以减少意外怀孕。”

Number of US abortions declined in 2020, CDC report finds

Thenumber of abortions performed in the U.S.declined in 2020, according to new data from the Centers for Disease Control and Prevention.

Theannual report, published Wednesday by the CDC, looks at how common abortion is in the United States and who is getting the procedure.

In total, 620,327 abortions were reported during 2020, a 2% decline from 2019. This data includes every state aside from California, Maryland and New Hampshire.

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The rate of abortions also declined to 11.2 per 1,000 women between ages 15 and 44 in 2020, a drop from 11.4 per 1,000 the year before.

Women in their 20s accounted for more than half of all abortions in 2020 at 57.2%. Specifically, women between ages 25 and 29 made up 29.3% and women between ages 20 and 24 made up 27.9% of those who had an abortion.

In addition, of all women who had abortions that year, 86.3% were unmarried and 60.9% already had at least one child, according to the report.

Comparatively, teenagers under age 15 and women aged 40 or older accounted for the fewest abortions in 2020 at 0.2% and 3.7%, respectively.

When looking at abortions in the U.S. by race and ethnicity, large disparities could be seen.

Although white women and Black women each accounted for the highest number of abortions in 2020 -- making up about one-third each -- the rates were dramatically different.

Black women had an abortion rate nearly four times higher than that of white women at 24 abortions per 1,000 Black women compared to 6.2 abortions per 1,000 white women.

Additionally, while Hispanic women made up a smaller share of the abortions performed in 2020 at 21%, the abortion rate was 1.8 times that of white women at 11.4 abortions per 1,000 Hispanic women.

According to the CDC, reasons for these disparities include unequal access to family planning services, poverty and mistrust of the medical system.

The report also examined how far along women were when they received abortions. The overwhelming majority of abortions in 2020, 80.9%, were performed at or before nine weeks' gestation. In 2020, 93.1% of abortions were performed before the second trimester.

About half of all abortions, 51%, were medical abortions in 2020 followed by surgical abortions at or before 13 weeks at 40%.

Additionally, the report discussed abortion trends from 2011 to 2020. Data showed the total number of abortions declined by 15% and the rate per 1,000 women decreased by 18% -- with that rate decline seen across all age groups.

Particularly, the decrease in abortion rate was highest among adolescents aged 15 to 19, dropping by 48% between 2011 and 2020.

The authors did not state whether the drop in 2020 occurred because of COVID-19 pandemic restrictions nor did they discuss what may be seen after theSupreme Court overturned Roe v. Wade-- which guaranteed the constitutional right to an abortion -- this summer.

However, they did write that abortion surveillance is "to help evaluate programs aimed at promoting equitable access to patient-centered contraceptive care in the United States to reduce unintended pregnancies."