Safety and effectiveness of medication and aspiration abortion before or during the sixth week of pregnancy: A retrospective multicenter study

Characteristics of people obtaining medication vs procedural abortions in clinical settings in the United States: Findings from the 2021-2022 Abortion Patient Survey

OBJECTIVES

This study aimed to compare the characteristics of people obtaining medication and procedural abortions in clinical settings in the United States.

STUDY DESIGN

We conducted a cross-sectional survey of people obtaining abortions at a sample of 56 US facilities between June 2021 and July 2022. We restricted analyses to patients with pregnancies less than 11 weeks' gestation presenting at 43 clinics offering both medication and procedural abortion. We conducted bivariate analyses and multivariable logistic regression to identify factors associated with obtaining a medication vs procedural abortion.

RESULTS

Our analytic sample includes 4717 respondents, 57% of whom obtained a medication abortion. In bivariate analyses, individuals who identified as Asian or White, had no prior births or abortions, or were paying out of pocket were all more likely to have a medication abortion. Non-Hispanic Black individuals, those with incomes at or below the poverty level, and those paying with insurance were more likely to have a procedural abortion. Some 24% of respondents chose the facility because it offered medication abortion, but even after controlling for this proxy for method preference in a logistic regression model, Black respondents and those with poverty-level incomes were less likely to have a medication abortion.

CONCLUSIONS

The findings of the study suggest that Black individuals and those with low incomes-who often face systemic barriers to care-are less likely to have medication abortions. When medication abortion is the only option available, for example, at a medication-only clinic or from an online source, these groups may be most impacted by the lack of options.

IMPLICATIONS

To the extent possible, offering both medication and procedural abortion and increasing access to both types are important to meet patients' individual needs and preferences.

Abortion Surveillance - United States, 2021

Problem/Condition

CDC conducts abortion surveillance to document the number and characteristics of women obtaining legal induced abortions and number of abortion-related deaths in the United States.

Period Covered

2021.

Description of System

Each year, CDC requests abortion data from the central health agencies for the 50 states, the District of Columbia, and New York City. For 2021, a total of 48 reporting areas voluntarily provided aggregate abortion data to CDC. Of these, 47 reporting areas provided data each year during 2012-2021. Census and natality data were used to calculate abortion rates (number of abortions per 1,000 women aged 15-44 years) and ratios (number of abortions per 1,000 live births), respectively. Abortion-related deaths from 2020 were assessed as part of CDC's Pregnancy Mortality Surveillance System (PMSS).

Results

A total of 625,978 abortions for 2021 were reported to CDC from 48 reporting areas. Among 47 reporting areas with data each year during 2012-2021, in 2021, a total of 622,108 abortions were reported, the abortion rate was 11.6 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 204 abortions per 1,000 live births. From 2020 to 2021, the total number of abortions increased 5% (from 592,939 total abortions), the abortion rate increased 5% (from 11.1 abortions per 1,000 women aged 15-44 years), and the abortion ratio increased 4% (from 197 abortions per 1,000 live births). From 2012 to 2021, the total number of reported abortions decreased 8% (from 673,634), the abortion rate decreased 11% (from 13.1 abortions per 1,000 women aged 15-44 years), and the abortion ratio decreased 1% (from 207 abortions per 1,000 live births).In 2021, women in their 20s accounted for more than half of abortions (57.0%). Women aged 20-24 and 25-29 years accounted for the highest percentages of abortions (28.3% and 28.7%, respectively) and had the highest abortion rates (19.7 and 19.4 abortions per 1,000 women aged 20-24 and 25-29 years, respectively). By contrast, adolescents aged <15 years and women aged ≥40 years accounted for the lowest percentages of abortions (0.2% and 3.6%, respectively) and had the lowest abortion rates (0.4 and 2.5 abortions per 1,000 women aged <15 and ≥40 years, respectively). However, abortion ratios were highest among adolescents (aged ≤19 years) and lowest among women aged 30-39 years.From 2020 to 2021, abortion rates increased among women aged 20-39 years, decreased among adolescents aged 15-19 years, and did not change among adolescents aged <15 years and women aged ≥40 years. Abortion rates decreased from 2012 to 2021 among all age groups, except women aged 30-34 years for whom it increased. The decrease in the abortion rate from 2012 to 2021 was highest among adolescents compared with any other age group. From 2020 to 2021, abortion ratios increased for women aged 15-24 years, decreased among adolescents aged <15 years and women aged ≥35 years and did not change for women aged 25-34 years. From 2012 to 2021, abortion ratios increased among women aged 15-29 years and decreased among adolescents aged <15 years and women aged ≥30 years. The decrease in abortion ratio from 2012 to 2021 was highest among women aged ≥40 years compared with any other age group.In 2021, the majority (80.8%) of abortions were performed at ≤9 weeks' gestation, and nearly all (93.5%) were performed at ≤13 weeks' gestation. During 2012-2021, the percentage of abortions performed at >13 weeks' gestation remained ≤8.7%. In 2021, the highest percentage of abortions were performed by early medication abortion at ≤9 weeks' gestation (53.0%), followed by surgical abortion at ≤13 weeks' gestation (37.6%), surgical abortion at >13 weeks' gestation (6.4%), and medication abortion at >9 weeks' gestation (3.0%); all other methods were uncommon (<0.1%). Among those that were eligible (≤9 weeks' gestation), 66.6% of abortions were early medication abortions. In 2020, the most recent year for which PMSS data were reviewed for pregnancy-related deaths; six women died as a result of complications from legal induced abortion.

Interpretation

Among the 47 areas that reported data continuously during 2012-2021, overall decreases were observed during 2012-2021 in the total number, rate, and ratio of reported abortions; however, from 2020 to 2021, increases were observed across all measures.

Public Health Action

Abortion surveillance can be used to help evaluate programs aimed at promoting equitable access to patient-centered quality contraceptive services in the United States to reduce unintended pregnancies.

Abortion Surveillance - United States, 2020

Problem/Condition

CDC conducts abortion surveillance to document the number and characteristics of women obtaining legal induced abortions and number of abortion-related deaths in the United States.

Period Covered

2020.

Description of System

Each year, CDC requests abortion data from the central health agencies for the 50 states, the District of Columbia, and New York City. For 2020, a total of 49 reporting areas voluntarily provided aggregate abortion data to CDC. Of these, 48 reporting areas provided data each year during 2011-2020. Census and natality data were used to calculate abortion rates (number of abortions per 1,000 women aged 15-44 years) and ratios (number of abortions per 1,000 live births), respectively. Abortion-related deaths from 2019 were assessed as part of CDC's Pregnancy Mortality Surveillance System (PMSS).

Results

A total of 620,327 abortions for 2020 were reported to CDC from 49 reporting areas. Among 48 reporting areas with data each year during 2011-2020, in 2020, a total of 615,911 abortions were reported, the abortion rate was 11.2 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 198 abortions per 1,000 live births. From 2019 to 2020, the total number of abortions decreased 2% (from 625,346 total abortions), the abortion rate decreased 2% (from 11.4 abortions per 1,000 women aged 15-44 years), and the abortion ratio increased 2% (from 195 abortions per 1,000 live births). From 2011 to 2020, the total number of reported abortions decreased 15% (from 727,554), the abortion rate decreased 18% (from 13.7 abortions per 1,000 women aged 15-44 years), and the abortion ratio decreased 9% (from 217 abortions per 1,000 live births).In 2020, women in their 20s accounted for more than half of abortions (57.2%). Women aged 20-24 and 25-29 years accounted for the highest percentages of abortions (27.9% and 29.3%, respectively) and had the highest abortion rates (19.2 and 19.0 abortions per 1,000 women aged 20-24 and 25-29 years, respectively). By contrast, adolescents aged <15 years and women aged ≥40 years accounted for the lowest percentages of abortions (0.2% and 3.7%, respectively) and had the lowest abortion rates (0.4 and 2.6 abortions per 1,000 women aged <15 and ≥40 years, respectively). However, abortion ratios were highest among adolescents (aged ≤19 years) and lowest among women aged 25-39 years.Abortion rates decreased from 2011 to 2020 among all age groups. The decrease in abortion rate was highest among adolescents compared with any other age group. From 2019 to 2020, abortion rates decreased or did not change for all age groups. Abortion ratios decreased from 2011 to 2020 for all age groups, except adolescents aged 15-19 years and women aged 25-29 years for whom abortion ratios increased. The decrease in abortion ratio was highest among women aged ≥40 years compared with any other age group. From 2019 to 2020, abortion ratios decreased for adolescents aged <15 years and women aged ≥35 and increased for women 15-34 years.In 2020, 80.9% of abortions were performed at ≤9 weeks' gestation, and nearly all (93.1%) were performed at ≤13 weeks' gestation. During 2011-2020, the percentage of abortions performed at >13 weeks' gestation remained consistently low (≤9.2%). In 2020, the highest percentage of abortions were performed by early medical abortion at ≤9 weeks' gestation (51.0%), followed by surgical abortion at ≤13 weeks' gestation (40.0%), surgical abortion at >13 weeks' gestation (6.7%), and medical abortion at >9 weeks' gestation (2.4%); all other methods were uncommon (<0.1%). Among those that were eligible (≤9 weeks' gestation), 63.9% of abortions were early medical abortions. In 2019, the most recent year for which PMSS data were reviewed for pregnancy-related deaths, four women died as a result of complications from legal induced abortion.

Interpretation

Among the 48 areas that reported data continuously during 2011-2020, overall decreases were observed during 2011-2020 in the total number, rate, and ratio of reported abortions. From 2019 to 2020, decreases also were observed in the total number and rate of reported abortions; however, a 2% increase was observed in the total abortion ratio.

Public Health Action

Abortion surveillance can be used to help evaluate programs aimed at promoting equitable access to patient-centered quality contraceptive services in the United States to reduce unintended pregnancies.

Abortion Surveillance - United States, 2019

Problem/Condition

CDC conducts abortion surveillance to document the number and characteristics of women obtaining legal induced abortions and number of abortion-related deaths in the United States.

Period Covered

2019.

Description of System

Each year, CDC requests abortion data from the central health agencies for 50 states, the District of Columbia, and New York City. For 2019, 49 reporting areas voluntarily provided aggregate abortion data to CDC. Of these, 48 reporting areas provided data each year during 2010–2019. Census and natality data were used to calculate abortion rates (number of abortions per 1,000 women aged 15–44 years) and ratios (number of abortions per 1,000 live births), respectively. Abortion-related deaths from 2018 were assessed as part of CDC’s Pregnancy Mortality Surveillance System (PMSS).

Results

A total of 629,898 abortions for 2019 were reported to CDC from 49 reporting areas. Among 48 reporting areas with data each year during 2010–2019, in 2019, a total of 625,346 abortions were reported, the abortion rate was 11.4 abortions per 1,000 women aged 15–44 years, and the abortion ratio was 195 abortions per 1,000 live births. From 2018 to 2019, the total number of abortions increased 2% (from 614,820 total abortions), the abortion rate increased 0.9% (from 11.3 abortions per 1,000 women aged 15–44 years), and the abortion ratio increased 3% (from 189 abortions per 1,000 live births). From 2010 to 2019, the total number of reported abortions, abortion rate, and abortion ratio decreased 18% (from 762,755), 21% (from 14.4 abortions per 1,000 women aged 15–44 years), and 13% (from 225 abortions per 1,000 live births), respectively.

In 2019, women in their 20s accounted for more than half of abortions (56.9%). Women aged 20–24 and 25–29 years accounted for the highest percentages of abortions (27.6% and 29.3%, respectively) and had the highest abortion rates (19.0 and 18.6 abortions per 1,000 women aged 20–24 and 25–29 years, respectively). By contrast, adolescents aged <15 years and women aged ≥40 years accounted for the lowest percentages of abortions (0.2% and 3.7%, respectively) and had the lowest abortion rates (0.4 and 2.7 abortions per 1,000 women aged <15 and ≥40 years, respectively). However, abortion ratios in 2019 were highest among adolescents (aged ≤19 years) and lowest among women aged 25–39 years. Abortion rates decreased from 2010 to 2019 for all women, regardless of age. The decrease in abortion rate was highest among adolescents compared with any other age group. From 2018 to 2019, abortion rates decreased or did not change among women aged ≤24 years; however, the abortion rate increased among those aged ≥25 years. Abortion ratios also decreased or did not change from 2010 to 2019 for all age groups, except adolescents aged <15 years. The decrease in abortion ratio was highest among women aged ≥40 years compared with any other age group. From 2018 to 2019, abortion ratios increased for all age groups, except adolescents aged <15 years.

In 2019, 79.3% of abortions were performed at ≤9 weeks’ gestation, and nearly all (92.7%) were performed at ≤13 weeks’ gestation. During 2010–2019, the percentage of abortions performed at >13 weeks’ gestation remained consistently low (≤9.0%). In 2019, the highest proportion of abortions were performed by surgical abortion at ≤13 weeks’ gestation (49.0%), followed by early medical abortion at ≤9 weeks’ gestation (42.3%), surgical abortion at >13 weeks’ gestation (7.2%), and medical abortion at >9 weeks’ gestation (1.4%); all other methods were uncommon (<0.1%). Among those that were eligible (≤9 weeks’ gestation), 53.7% of abortions were early medical abortions. In 2018, the most recent year for which PMSS data were reviewed for pregnancy-related deaths, two women died as a result of complications from legal induced abortion.

Interpretation

Among the 48 areas that reported data continuously during 2010–2019, overall decreases were observed during 2010–2019 in the total number, rate, and ratio of reported abortions; however, from 2018 to 2019, 1%–3% increases were observed across all measures.

Public Health Action

Abortion surveillance can be used to help evaluate programs aimed at promoting equitable access to patient-centered quality contraceptive services in the United States to reduce unintended pregnancies.

Serum human chorionic gonadotropin decline following aspiration abortion in early pregnancy less than 42 days gestation

OBJECTIVE

To define serum human chorionic gonadotropin (hCG) decline following complete aspiration abortion.

STUDY DESIGN

We performed a secondary analysis of 86 patients who underwent uncomplicated aspiration abortion for ultrasound-confirmed pregnancy ≤42 days gestation and had serum hCG at the time of aspiration and within 3 days postprocedure.

RESULTS

Median hCG declines were 72.9% by day 1 (n = 14), 87.6% by day 2 (n = 50), and 92.8% by day 3 (n = 22). Ninetieth percentile declines were 67.8%, 81.5%, and 90.8%. Minimum hCG declines were 56.2%, 77.3%, and 83.2%. Trends did not vary by gestational age or by initial hCG <3000 mIU/mL.

CONCLUSION

Postprocedure hCG trend varies over the first few days in early gestation. At ≤42 days gestation, serial hCG decline at 1 day after completed aspiration abortion is greater than 50%, consistent with the decline observed in medication abortion.

IMPLICATIONS

This study confirms previously estimated human chorionic gonadotropin decline after aspiration abortion of at least 50% at 24 hours for completed procedure in very early gestations. Minimum declines on days 2 and 3 are approximately 70% and 80%.

Abortion Surveillance - United States, 2018

PROBLEM/CONDITION

CDC conducts abortion surveillance to document the number and characteristics of women obtaining legal induced abortions and number of abortion-related deaths in the United States.

PERIOD COVERED

2018.

DESCRIPTION OF SYSTEM

Each year, CDC requests abortion data from the central health agencies for 50 states, the District of Columbia, and New York City. For 2018, 49 reporting areas voluntarily provided aggregate abortion data to CDC. Of these, 48 reporting areas provided data each year during 2009-2018. Census and natality data were used to calculate abortion rates (number of abortions per 1,000 women aged 15-44 years) and ratios (number of abortions per 1,000 live births), respectively. Abortion-related deaths from 2017 were assessed as part of CDC's Pregnancy Mortality Surveillance System (PMSS).

RESULTS

A total of 619,591 abortions for 2018 were reported to CDC from 49 reporting areas. Among 48 reporting areas with data each year during 2009-2018, in 2018, a total of 614,820 abortions were reported, the abortion rate was 11.3 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 189 abortions per 1,000 live births. From 2017 to 2018, the total number of abortions and abortion rate increased 1% (from 609,095 total abortions and from 11.2 abortions per 1,000 women aged 15-44 years, respectively), and the abortion ratio increased 2% (from 185 abortions per 1,000 live births). From 2009 to 2018, the total number of reported abortions, abortion rate, and abortion ratio decreased 22% (from 786,621), 24% (from 14.9 abortions per 1,000 women aged 15-44 years), and 16% (from 224 abortions per 1,000 live births), respectively. In 2018, women in their 20s accounted for more than half of abortions (57.7%). In 2018 and during 2009-2018, women aged 20-24 and 25-29 years accounted for the highest percentages of abortions; in 2018, they accounted for 28.3% and 29.4% of abortions, respectively, and had the highest abortion rates (19.1 and 18.5 per 1,000 women aged 20-24 and 25-29 years, respectively). By contrast, adolescents aged <15 years and women aged ≥40 years accounted for the lowest percentages of abortions (0.2% and 3.6%, respectively) and had the lowest abortion rates (0.4 and 2.6 per 1,000 women aged <15 and ≥40 years, respectively). However, abortion ratios in 2018 and throughout 2009-2018 were highest among adolescents (aged ≤19 years) and lowest among women aged 25-39 years. Abortion rates decreased from 2009 to 2018 for all women, regardless of age. The decrease in abortion rate was highest among adolescents compared with women in any other age group. From 2009 to 2013, the abortion rates decreased for all age groups and from 2014 to 2018, the abortion rates decreased for all age groups, except for women aged 30-34 years and those aged ≥40 years. In addition, from 2017 to 2018, abortion rates did not change or decreased among women aged ≤24 and ≥40 years; however, the abortion rate increased among women aged 25-39 years. Abortion ratios also decreased from 2009 to 2018 among all women, except adolescents aged <15 years. The decrease in abortion ratio was highest among women aged ≥40 years compared with women in any other age group. The abortion ratio decreased for all age groups from 2009 to 2013; however, from 2014 to 2018, abortion ratios only decreased for women aged ≥35 years. From 2017 to 2018, abortion ratios increased for all age groups, except women aged ≥40 years. In 2018, approximately three fourths (77.7%) of abortions were performed at ≤9 weeks' gestation, and nearly all (92.2%) were performed at ≤13 weeks' gestation. In 2018, and during 2009-2018, the percentage of abortions performed at >13 weeks' gestation remained consistently low (≤9.0%). In 2018, the highest proportion of abortions were performed by surgical abortion at ≤13 weeks' gestation (52.1%), followed by early medical abortion at ≤9 weeks' gestation (38.6%), surgical abortion at >13 weeks' gestation (7.8%), and medical abortion at >9 weeks' gestation (1.4%); all other methods were uncommon (<0.1%). Among those that were eligible (≤9 weeks' gestation), 50.0% of abortions were early medical abortions. In 2017, the most recent year for which PMSS data were reviewed for pregnancy-related deaths, two women were identified to have died as a result of complications from legal induced abortion.

INTERPRETATION

Among the 48 areas that reported data continuously during 2009-2018, decreases were observed during 2009-2017 in the total number, rate, and ratio of reported abortions, and these decreases resulted in historic lows for this period for all three measures. These decreases were followed by 1%-2% increases across all measures from 2017 to 2018.

PUBLIC HEALTH ACTION

The data in this report can help program planners and policymakers identify groups of women with the highest rates of abortion. Unintended pregnancy is a major contributor to induced abortion. Increasing access to and use of effective contraception can reduce unintended pregnancies and further reduce the number of abortions performed in the United States.