Surgical abortion prior to 7 weeks of gestation

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.

Medication abortion and uterine aspiration for undesired pregnancy of unknown location: A retrospective cohort study

OBJECTIVE

To compare days to diagnosis of pregnancy location for same-day medication abortion and same-day uterine aspiration with delayed treatment (expectant management) in patients with undesired pregnancy of unknown location (PUL).

STUDY DESIGN

We conducted a retrospective cohort study at a single Planned Parenthood health center in Minnesota. We reviewed electronic health records and included patients presenting for induced abortion diagnosed with PUL (positive high-sensitivity urine pregnancy test and no evidence of intrauterine or extrauterine pregnancy on transvaginal ultrasonography) without symptoms or ultrasonographic imaging concerning for ectopic pregnancy (low risk). The primary outcome was days to pregnancy location clinical diagnosis.

RESULTS

Of 19,151 abortion encounters in 2016-2019, 501 (2.6%) had a low-risk PUL. Participants chose delay-for-diagnosis before treatment (148, 29.5%), immediate treatment medication abortion (244, 48.7%), or immediate treatment uterine aspiration (109, 21.8%). Median days to diagnosis were significantly lower in the immediate treatment uterine aspiration group (2 days, IQR 1-3 days, p < 0.001) and similar for immediate treatment medication abortion (4 days, IQR 3-9 days, p = 0.304) compared with delay-for-diagnosis (3 days, IQR 2-10 days). Thirty-three low-risk participants (6.6%) were treated for ectopic pregnancy, but no difference in ectopic rate was detected among groups (p = 0.725). Participants in the delay-for-diagnosis group were more likely to be nonadherent with follow-up (p < 0.001). For participants who completed follow-up, abortion completion rate was lower for immediate treatment medication abortion (85.2%) compared with immediate treatment uterine aspiration (97.6%, p = 0.003).

CONCLUSIONS

For patients with undesired PUL, diagnosis of pregnancy location was fastest with immediate treatment uterine aspiration and similar for expectant management and immediate treatment medication abortion. Medication abortion efficacy may be reduced in treatment of undesired PUL.

IMPLICATIONS

For PUL patients desiring induced abortion, the option of proceeding at initial encounter may help improve access and patient satisfaction. Uterine aspiration for PUL may help diagnose pregnancy location more quickly.

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.

The timing of intravenous oxytocin administration is crucial to minimize perioperative blood loss during first-trimester suction curettage for missed abortion

BACKGROUND

Oxytocin is commonly used to reduce blood loss during suction curettage for missed abortion. However, the potential of oxytocin to mitigate blood loss in early pregnancy remains controversial. Based on the hypothesis that the "timing" of oxytocin administration may be a critical factor, we investigated whether the timing of intravenous (IV) administration is associated with reduced perioperative blood loss during first-trimester suction curettage for missed abortion.

METHODS

The medical charts of 146 patients with ultrasound-confirmed first-trimester missed abortion who underwent suction curettage with IV oxytocin administration were retrospectively reviewed.

RESULTS

Among the patients, 67 received 10 IU of IV oxytocin before suction curettage (early-oxytocin administration group), while 79 patients received 10 IU of IV oxytocin after suction curettage (late-oxytocin administration group). The demographic features between the two groups did not significantly differ. However, there was a lower proportion of nulliparous patients in the early-oxytocin administration group than in the late-oxytocin administration group (38.8% vs 60.8%, p = 0.006). The perioperative blood loss amount was significantly lower in the early-oxytocin administration group than in the late-oxytocin administration group (60 [range: 50-100] vs 100 [range: 30-250] mL, p = 0.001). Moreover, the multivariate logistic regression analysis showed that the early-oxytocin administration group had a lower risk for a perioperative blood loss amount of ≥100 mL than the late-oxytocin administration group (0.23 [range: 0.10-0.55], p = 0.001); a gestational age of 9-12 weeks ( p = 0.009) was found to be associated with an increased risk for a perioperative blood loss amount of ≥100 mL.

CONCLUSION

Compared with late-oxytocin administration, early-oxytocin administration could reduce perioperative blood loss during first-trimester suction curettage for missed abortion. However, the results require further investigation.

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.

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.

Abortion Surveillance - United States, 2016

PROBLEM/CONDITION

Since 1969, CDC has conducted abortion surveillance to document the number and characteristics of women obtaining legal induced abortions in the United States.

PERIOD COVERED

2016.

DESCRIPTION OF SYSTEM

Each year, CDC requests abortion data from the central health agencies of 52 reporting areas (the 50 states, the District of Columbia, and New York City). The reporting areas provide this information voluntarily. For 2016, data were received from 48 reporting areas. Abortion data provided by these 48 reporting areas for each year during 2007-2016 were used in trend analyses. 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.

RESULTS

A total of 623,471 abortions for 2016 were reported to CDC from 48 reporting areas. Among these 48 reporting areas, the abortion rate for 2016 was 11.6 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 186 abortions per 1,000 live births. From 2015 to 2016, the total number of reported abortions decreased 2% (from 636,902), the abortion rate decreased 2% (from 11.8 abortions per 1,000 women aged 15-44 years), and the abortion ratio decreased 1% (from 188 abortions per 1,000 live births). From 2007 to 2016, the total number of reported abortions decreased 24% (from 825,240), the abortion rate decreased 26% (from 15.6 abortions per 1,000 women aged 15-44 years), and the abortion ratio decreased 18% (from 226 abortions per 1,000 live births). In 2016, all three measures reached their lowest level for the entire period of analysis (2007-2016). In 2016 and throughout the period of analysis, women in their 20s accounted for the majority of abortions and had the highest abortion rates. In 2016, women aged 20-24 and 25-29 years accounted for 30.0% and 28.5% of all reported abortions, respectively, and had abortion rates of 19.1 and 17.8 abortions per 1,000 women aged 20-24 and 25-29 years, respectively. By contrast, women aged 30-34, 35-39, and ≥40 years accounted for 18.0%, 10.3%, and 3.5% of all reported abortions, respectively, and had abortion rates of 11.6, 6.9, and 2.5 abortions per 1,000 women aged 30-34, 35-39, and ≥40 years, respectively. From 2007 to 2016, the abortion rate decreased among women in all age groups. In 2016, adolescents aged <15 and 15-19 years accounted for 0.3% and 9.4% of all reported abortions, respectively, and had abortion rates of 0.4 and 6.2 abortions per 1,000 adolescents aged <15 and 15-19 years, respectively. From 2007 to 2016, the percentage of abortions accounted for by adolescents aged 15-19 years decreased 43%, and the abortion rate decreased 56%. This decrease in abortion rate was greater than the decreases for women in any older age group. In contrast to the percentage distribution of abortions and abortion rates by age, abortion ratios in 2016 and throughout the entire period of analysis were highest among adolescents and lowest among women aged 25-39 years. Abortion ratios decreased from 2007 to 2016 for women in all age groups. In 2016, almost two-thirds (65.5%) of abortions were performed at ≤8 weeks' gestation, and nearly all (91.0%) were performed at ≤13 weeks' gestation. Fewer abortions were performed between 14 and 20 weeks' gestation (7.7%) or at ≥21 weeks' gestation (1.2%). During 2007-2016, the percentage of abortions performed at >13 weeks' gestation remained consistently low (8.2%-9.0%). Among abortions performed at ≤13 weeks' gestation, the percentage distributions of abortions by gestational age were highest among those performed at ≤6 weeks' gestation (35.0%-38.4%). In 2016, 27.9% of all abortions were performed by early medical abortion (a nonsurgical abortion at ≤8 weeks' gestation), 59.9% were performed by surgical abortion at ≤13 weeks' gestation, 8.8% were performed by surgical abortion at >13 weeks' gestation, and 3.4% were performed by medical abortion at >8 weeks' gestation; all other methods were uncommon (0.1%). Among those that were eligible for early medical abortion on the basis of gestational age (i.e., performed at ≤8 weeks' gestation), 41.9% were completed by this method. In 2016, women with one or more previous live births accounted for 59.0% of abortions, and women with no previous live births accounted for 41.0%. Women with one or more previous induced abortions accounted for 43.1% of abortions, and women with no previous abortions accounted for 56.9%. Deaths of women associated with complications from abortion are assessed as part of CDC's Pregnancy Mortality Surveillance System. In 2015, the most recent year for which data were reviewed for abortion-related deaths, two women were identified to have died as a result of complications from legal induced abortion and for one additional death, it was unknown whether the abortion was induced or spontaneous.

INTERPRETATION

Among the 48 areas that reported data every year during 2007-2016, decreases in the total number, rate, and ratio of reported abortions resulted in historic lows for the period of analysis for all three measures of abortion.

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 the 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.

No. 360-Induced Abortion: Surgical Abortion and Second Trimester Medical Methods

OBJECTIVE

This guideline reviews evidence relating to the provision of surgical induced abortion (IA) and second trimester medical abortion, including pre- and post-procedural care.

INTENDED USERS

Gynaecologists, family physicians, nurses, midwives, residents, and other health care providers who currently or intend to provide and/or teach IAs.

TARGET POPULATION

Women with an unintended or abnormal first or second trimester pregnancy.

EVIDENCE

PubMed, Medline, and the Cochrane Database were searched using the key words: first-trimester surgical abortion, second-trimester surgical abortion, second-trimester medical abortion, dilation and evacuation, induction abortion, feticide, cervical preparation, cervical dilation, abortion complications. Results were restricted to English or French systematic reviews, randomized controlled trials, clinical trials, and observational studies published from 1979 to July 2017. National and international clinical practice guidelines were consulted for review. Grey literature was not searched.

VALUES

The quality of evidence in this document was rated using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology framework. The summary of findings is available upon request.

BENEFITS, HARMS, AND/OR COSTS

IA is safe and effective. The benefits of IA outweigh the potential harms or costs. No new direct harms or costs identified with these guidelines.

Abortion Surveillance - United States, 2014

PROBLEM/CONDITION

Since 1969, CDC has conducted abortion surveillance to document the number and characteristics of women obtaining legal induced abortions in the United States.

PERIOD COVERED

2014.

DESCRIPTION OF SYSTEM

Each year, CDC requests abortion data from the central health agencies of 52 reporting areas (the 50 states, the District of Columbia, and New York City). The reporting areas provide this information voluntarily. For 2014, data were received from 49 reporting areas. For trend analysis, abortion data were evaluated from 48 areas that reported data every year during 2005-2014. Census and natality data, respectively, 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).

RESULTS

A total of 652,639 abortions were reported to CDC for 2014. Of these abortions, 98.4% were from the 48 reporting areas that provided data every year during 2005-2014. Among these 48 reporting areas, the abortion rate for 2014 was 12.1 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 193 abortions per 1,000 live births. From 2013 to 2014, the total number and rate of reported abortions decreased 2%, and the ratio decreased 3%. From 2005 to 2014, the total number, rate, and ratio of reported abortions decreased 21%, 22%, and 18%, respectively. In 2014, all three measures reached their lowest level for the entire period of analysis (2005-2014). In 2014 and throughout the period of analysis, women in their 20s accounted for the majority of abortions and had the highest abortion rates; women in their 30s and older accounted for a much smaller percentage of abortions and had lower abortion rates. In 2014, women aged 20-24 and 25-29 years accounted for 32.2% and 26.7% of all reported abortions, respectively, and had abortion rates of 21.3 and 18.4 abortions per 1,000 women aged 20-24 and 25-29 years, respectively. In contrast, women aged 30-34, 35-39, and ≥40 years accounted for 17.1%, 9.7%, and 3.6% of all reported abortions, respectively, and had abortion rates of 11.9, 7.2, and 2.6 abortions per 1,000 women aged 30-34 years, 35-39 years, and ≥40 years, respectively. From 2005 to 2014, the abortion rate decreased among women aged 20-24, 25-29, 30-34, and 35-39 years by 27%, 16%, 12%, and 5%, respectively, but increased 4% among women aged ≥40 years. In 2014, adolescents aged <15 and 15-19 years accounted for 0.3% and 10.4% of all reported abortions, respectively, and had abortion rates of 0.5 and 7.5 abortions per 1,000 adolescents aged <15 and 15-19 years, respectively. From 2005 to 2014, the percentage of abortions accounted for by adolescents aged 15-19 years decreased 38%, and their abortion rate decreased 49%. These decreases were greater than the decreases for women in any older age group. In contrast to the percentage distribution of abortions and abortion rates by age, abortion ratios in 2014 and throughout the entire period of analysis were highest among adolescents and lowest among women aged 30-39 years. Abortion ratios decreased from 2005 to 2014 for women in all age groups. In 2014, the majority (64.9%) of abortions were performed at ≤8 weeks' gestation, and nearly all (91.0%) were performed at ≤13 weeks' gestation. Few abortions were performed between 14 and 20 weeks' gestation (7.7%) or at ≥21 weeks' gestation (1.3%). During 2005-2014, the percentage of all abortions performed at ≤13 weeks' gestation remained consistently high (≥90.9%). Among abortions performed at ≤13 weeks' gestation, there was a shift toward earlier gestational ages, as the percentage performed at ≤6 weeks' gestation increased 9%, and the percentage of all other gestational ages at ≤13 weeks' gestation decreased 0%-12%. In 2014, among reporting areas that included medical (nonsurgical) abortion on their reporting form, 22.5% of all abortions were performed by early medical abortion (a nonsurgical abortion at ≤8 weeks' gestation), 66.9% were performed by surgical abortion at ≤13 weeks' gestation, and 9.1% were performed by surgical abortion at >13 weeks' gestation; all other methods were uncommon (<1.5%). Among abortions performed at ≤8 weeks' gestation that were eligible for early medical abortion on the basis of gestational age, 33.3% were completed by this method. In 2014, women with one or more previous live births accounted for 59.5% of abortions, and women with no previous live births accounted for 40.4%. Women with one or more previous induced abortions accounted for 44.9% of abortions, and women with no previous abortion accounted for 55.1%. Women with three or more previous births accounted for 13.8% of abortions, and women with three or more previous abortions accounted for 8.6% of abortions. Deaths of women associated with complications from abortion for 2014 are being assessed as part of CDC's Pregnancy Mortality Surveillance System. In 2013, the most recent year for which data were available, four women were identified to have died as a result of complications from legal induced abortion.

INTERPRETATION

Among the 48 areas that reported data every year during 2005-2014, the decreases in the total number, rate, and ratio of reported abortions that occurred during 2010-2013 continued from 2013 to 2014, resulting in historic lows for all three measures of abortion.

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 the 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.

Abortion Surveillance - United States, 2015

PROBLEM/CONDITION

Since 1969, CDC has conducted abortion surveillance to document the number and characteristics of women obtaining legal induced abortions in the United States.

PERIOD COVERED

2015.

DESCRIPTION OF SYSTEM

Each year, CDC requests abortion data from the central health agencies of 52 reporting areas (the 50 states, the District of Columbia, and New York City). The reporting areas provide this information voluntarily. For 2015, data were received from 49 reporting areas. Abortion data provided by these 49 reporting areas for each year during 2006-2015 were used in trend analyses. 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.

RESULTS

A total of 638,169 abortions for 2015 were reported to CDC from 49 reporting areas. Among these 49 reporting areas, the abortion rate for 2015 was 11.8 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 188 abortions per 1,000 live births. From 2014 to 2015, the total number of reported abortions decreased 2% (from 652,639), the abortion rate decreased 2% (from 12.1 abortions per 1,000 women aged 15-44 years), and the abortion ratio decreased 2% (from 192 abortions per 1,000 live births). From 2006 to 2015, the total number of reported abortions decreased 24% (from 842,855), the abortion rate decreased 26% (from 15.9 abortions per 1,000 women aged 15-44 years), and the abortion ratio decreased 19% (from 233 abortions per 1,000 live births). In 2015, all three measures reached their lowest level for the entire period of analysis (2006-2015). In 2015 and throughout the period of analysis, women in their 20s accounted for the majority of abortions and had the highest abortion rates; women aged ≥30 years accounted for a smaller percentage of abortions and had lower abortion rates. In 2015, women aged 20-24 and 25-29 years accounted for 31.1% and 27.6% of all reported abortions, respectively, and had abortion rates of 19.9 and 17.9 abortions per 1,000 women aged 20-24 and 25-29 years, respectively. In contrast, women aged 30-34, 35-39, and ≥40 years accounted for 17.7%, 10.0%, and 3.5% of all reported abortions, respectively, and had abortion rates of 11.6, 7.0, and 2.5 abortions per 1,000 women aged 30-34, 35-39, and ≥40 years, respectively. From 2006 to 2015, the abortion rate decreased among women in all age groups. In 2015, adolescents aged <15 and 15-19 years accounted for 0.3% and 9.8% of all reported abortions, respectively, and had abortion rates of 0.5 and 6.7 abortions per 1,000 adolescents aged <15 and 15-19 years, respectively. From 2006 to 2015, the percentage of abortions accounted for by adolescents aged 15-19 years decreased 41%, and their abortion rate decreased 54%. This decrease in abortion rate was greater than the decreases for women in any older age group. In contrast to the percentage distribution of abortions and abortion rates by age, abortion ratios in 2015 and throughout the entire period of analysis were highest among adolescents and lowest among women aged 25-39 years. Abortion ratios decreased from 2006 to 2015 for women in all age groups. In 2015, almost two thirds (65.4%) of abortions were performed at ≤8 weeks' gestation, and nearly all (91.1%) were performed at ≤13 weeks' gestation. Few abortions were performed between 14 and 20 weeks' gestation (7.6%) or at ≥21 weeks' gestation (1.3%). During 2006-2015 the percentage of all abortions performed at >13 weeks' gestation remained consistently low (≤9.0%). Among abortions performed at ≤13 weeks' gestation, a shift occurred toward earlier gestational ages, with the percentage performed at ≤6 weeks' gestation increasing 11%. In 2015, 24.6% of all abortions were performed by early medical abortion (a nonsurgical abortion at ≤8 weeks' gestation), 64.3% were performed by surgical abortion at ≤13 weeks' gestation, and 8.8% were performed by surgical abortion at >13 weeks' gestation; all other methods were uncommon (≤2.2%). Among those that were eligible for early medical abortion on the basis of gestational age (i.e., performed at ≤8 weeks' gestation), 35.8% were completed by this method. In 2015, women with one or more previous live births accounted for 59.3% of abortions, and women with no previous live births accounted for 40.7%. Women with one or more previous induced abortions accounted for 43.6% of abortions, and women with no previous abortion accounted for 56.3%. Women with three or more previous births accounted for 14.2% of abortions, and women with three or more previous abortions accounted for 8.2% of abortions. Deaths of women associated with complications from abortion for 2015 are being assessed as part of CDC's Pregnancy Mortality Surveillance System. In 2014, the most recent year for which data were available, six women were identified to have died as a result of complications from legal induced abortion.

INTERPRETATION

Among the 49 areas that reported data every year during 2006-2015, decreases in the total number, rate, and ratio of reported abortions resulted in historic lows for the period of analysis for all three measures of abortion.

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 the 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.

Controversies in family planning: persistently elevated serum human chorionic gonadotropin levels after aspiration abortion

Low but rising serum human chorionic gonadotropin (hCG) levels occur infrequently after an induced abortion. Because this scenario rarely occurs after suction aspiration, clinicians may have higher suspicion for an uncommon diagnosis. The differential diagnosis includes both common and uncommon diagnoses, such as incomplete abortion, heterotopic or ectopic pregnancy, a new intrauterine pregnancy and gestational trophoblastic neoplasia. The etiology of this presentation may be unclear, especially in the absence of abnormal bleeding or pain which would suggest incomplete abortion, or when significant time has passed since the procedure. We describe two cases of an uncommon presentation of retained products of conception after aspiration abortion in which hCG levels were low but rising.

Abortion Surveillance - United States, 2014

PROBLEM/CONDITION

Since 1969, CDC has conducted abortion surveillance to document the number and characteristics of women obtaining legal induced abortions in the United States.

PERIOD COVERED

2014.

DESCRIPTION OF SYSTEM

Each year, CDC requests abortion data from the central health agencies of 52 reporting areas (the 50 states, the District of Columbia, and New York City). The reporting areas provide this information voluntarily. For 2014, data were received from 49 reporting areas. For trend analysis, abortion data were evaluated from 48 areas that reported data every year during 2005-2014. Census and natality data, respectively, 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).

RESULTS

A total of 652,639 abortions were reported to CDC for 2014. Of these abortions, 98.4% were from the 48 reporting areas that provided data every year during 2005-2014. Among these 48 reporting areas, the abortion rate for 2014 was 12.1 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 186 abortions per 1,000 live births. From 2013 to 2014, the total number and rate of reported abortions decreased 2%, and the ratio decreased 7%. From 2005 to 2014, the total number, rate, and ratio of reported abortions decreased 21%, 22%, and 21%, respectively. In 2014, all three measures reached their lowest level for the entire period of analysis (2005-2014). In 2014 and throughout the period of analysis, women in their 20s accounted for the majority of abortions and had the highest abortion rates; women in their 30s and older accounted for a much smaller percentage of abortions and had lower abortion rates. In 2014, women aged 20-24 and 25-29 years accounted for 32.2% and 26.7% of all reported abortions, respectively, and had abortion rates of 21.3 and 18.4 abortions per 1,000 women aged 20-24 and 25-29 years, respectively. In contrast, women aged 30-34, 35-39, and ≥40 years accounted for 17.1%, 9.7%, and 3.6% of all reported abortions, respectively, and had abortion rates of 11.9, 7.2, and 2.6 abortions per 1,000 women aged 30-34 years, 35-39 years, and ≥40 years, respectively. From 2005 to 2014, the abortion rate decreased among women aged 20-24, 25-29, 30-34, and 35-39 years by 27%, 16%, 12%, and 5%, respectively, but increased 4% among women aged ≥40 years. In 2014, adolescents aged <15 and 15-19 years accounted for 0.3% and 10.4% of all reported abortions, respectively, and had abortion rates of 0.5 and 7.5 abortions per 1,000 adolescents aged <15 and 15-19 years, respectively. From 2005 to 2014, the percentage of abortions accounted for by adolescents aged 15-19 years decreased 38%, and their abortion rate decreased 49%. These decreases were greater than the decreases for women in any older age group. In contrast to the percentage distribution of abortions and abortion rates by age, abortion ratios in 2014 and throughout the entire period of analysis were highest among adolescents and lowest among women aged 30-39 years. Abortion ratios decreased from 2005 to 2014 for women in all age groups. In 2014, the majority (67.0%) of abortions were performed at ≤8 weeks' gestation, and nearly all (91.5%) were performed at ≤13 weeks' gestation. Few abortions were performed between 14 and 20 weeks' gestation (7.2%) or at ≥21 weeks' gestation (1.3%). During 2005-2014, the percentage of all abortions performed at ≤13 weeks' gestation remained consistently high (≥91.4%). Among abortions performed at ≤13 weeks' gestation, there was a shift toward earlier gestational ages, as the percentage performed at ≤6 weeks' gestation increased 21%, and the percentage of all other gestational ages at ≤13 weeks' gestation decreased 7%-20%. In 2014, among reporting areas that included medical (nonsurgical) abortion on their reporting form, 22.6% of all abortions were performed by early medical abortion (a nonsurgical abortion at ≤8 weeks' gestation), 67.4% were performed by surgical abortion at ≤13 weeks' gestation, and 8.6% were performed by surgical abortion at >13 weeks' gestation; all other methods were uncommon (<2%). Among abortions performed at ≤8 weeks' gestation that were eligible for early medical abortion on the basis of gestational age, 32.2% were completed by this method. In 2014, women with one or more previous live births accounted for 59.5% of abortions, and women with no previous live births accounted for 40.4%. Women with one or more previous induced abortions accounted for 44.9% of abortions, and women with no previous abortion accounted for 55.1%. Women with three or more previous births accounted for 13.8% of abortions, and women with three or more previous abortions accounted for 8.6% of abortions. Deaths of women associated with complications from abortion for 2014 are being assessed as part of CDC's Pregnancy Mortality Surveillance System. In 2013, the most recent year for which data were available, four women were identified to have died as a result of complications from legal induced abortion.

INTERPRETATION

Among the 48 areas that reported data every year during 2005-2014, the decreases in the total number, rate, and ratio of reported abortions that occurred during 2010-2013 continued from 2013 to 2014, resulting in historic lows for all three measures of abortion.

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 the 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.

Abortion Surveillance - United States, 2013

PROBLEM/CONDITION

Since 1969, CDC has conducted abortion surveillance to document the number and characteristics of women obtaining legal induced abortions in the United States.

PERIOD COVERED

2013.

DESCRIPTION OF SYSTEM

Each year, CDC requests abortion data from the central health agencies of 52 reporting areas (the 50 states, the District of Columbia, and New York City). The reporting areas provide this information voluntarily. For 2013, data were received from 49 reporting areas. For trend analysis, abortion data were evaluated from 47 areas that reported data every year during 2004-2013. Census and natality data, respectively, were used to calculate abortion rates (number of abortions per 1,000 women) and ratios (number of abortions per 1,000 live births).

RESULTS

A total of 664,435 abortions were reported to CDC for 2013. Of these abortions, 98.2% were from the 47 reporting areas that provided data every year during 2004-2013. Among these 47 reporting areas, the abortion rate for 2013 was 12.5 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 200 abortions per 1,000 live births. From 2012 to 2013, the total number, rate, and ratio of reported abortions decreased 5%. From 2004 to 2013, the total number, rate, and ratio of reported abortions decreased 20%, 21%, and 17%, respectively. In 2013, all three measures reached their lowest level for the entire period of analysis (2004-2013). In 2013 and throughout the period of analysis, women in their 20s accounted for the majority of abortions and had the highest abortion rates; women in their 30s and older accounted for a much smaller percentage of abortions and had lower abortion rates. In 2013, women aged 20-24 and 25-29 years accounted for 32.7% and 25.9% of all abortions, respectively, and had abortion rates of 21.8 and 18.2 abortions per 1,000 women aged 20-24 and 25-29 years, respectively. In contrast, women aged 30-34, 35-39, and ≥40 years accounted for 16.8%, 9.2%, and 3.6% of all abortions, respectively, and had abortion rates of 11.8, 7.0, and 2.5 abortions per 1,000 women aged 30-34 years, 35-39 years, and ≥40 years, respectively. During 2004-2013, the decrease in abortion rates among adult women aged 20-39 years ranged from 8% to 27% across these age groups, whereas the abortion rate was stable for women aged ≥40 years. In 2013, adolescents aged <15 and 15-19 years accounted for 0.3% and 11.4% of all abortions, respectively, and had abortion rates of 0.6 and 8.2 abortions per 1,000 adolescents aged <15 and 15-19 years, respectively. From 2004 to 2013, the percentage of abortions accounted for by adolescents aged 15-19 years decreased 31% and their abortion rate decreased 46%. These decreases were greater than the decreases for women in any older age group. In contrast to the percentage distribution of abortions and abortion rates by age, abortion ratios in 2013 and throughout the entire period of analysis were highest among adolescents and lowest among women aged 30-39 years. Abortion ratios decreased from 2004 to 2013 for women in all age groups, except for adolescents aged <15 years. In 2013, the majority (66.0%) of abortions were performed by ≤8 weeks' gestation, and nearly all (91.6%) were performed by ≤13 weeks' gestation. Few abortions were performed between 14 and 20 weeks' gestation (7.1%) or at ≥21 weeks' gestation (1.3%). From 2004 to 2013, the percentage of all abortions performed at ≤13 weeks' gestation remained consistently high (≥91.5%) and among those performed at ≤13 weeks' gestation, the percentage performed at ≤6 weeks' gestation increased 16%. In 2013, among the 43 reporting areas that included medical (nonsurgical) abortion on their reporting form, a total of 67.9% of abortions were performed by curettage at ≤13 weeks' gestation, 22.2% were performed by early medical abortion (a nonsurgical abortion at ≤8 weeks' gestation), and 8.6% were performed by curettage at >13 weeks' gestation; all other methods were uncommon. Among abortions performed at ≤8 weeks' gestation that were eligible for early medical abortion on the basis of gestational age, 32.8% were completed by this method. From 2012 to 2013, the percentage of abortions reported as early medical abortions increased 5%. Deaths of women associated with complications from abortion for 2013 are being investigated as part of CDC's Pregnancy Mortality Surveillance System. In 2012, the most recent year for which data were available, four women were identified to have died as a result of complications from known legal induced abortion. No reported deaths were associated with known illegal induced abortion.

INTERPRETATION

Among the 47 areas that reported data every year during 2004-2013, the decreases in the total number, rate, and ratio of reported abortions that occurred during 2009-2012 continued from 2012 to 2013, resulting in historic lows for all three measures of abortion.

PUBLIC HEALTH ACTION

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

Medical Abortion

OBJECTIVE

This guideline reviews the evidence relating to the provision of first-trimester medical induced abortion, including patient eligibility, counselling, and consent; evidence-based regimens; and special considerations for clinicians providing medical abortion care.

INTENDED USERS

Gynaecologists, family physicians, registered nurses, midwives, residents, and other healthcare providers who currently or intend to provide pregnancy options counselling, medical abortion care, or family planning services.

TARGET POPULATION

Women with an unintended first trimester pregnancy.

EVIDENCE

Published literature was retrieved through searches of PubMed, MEDLINE, and Cochrane Library between July 2015 and November 2015 using appropriately controlled vocabulary (MeSH search terms: Induced Abortion, Medical Abortion, Mifepristone, Misoprostol, Methotrexate). Results were restricted to systematic reviews, randomized controlled trials, clinical trials, and observational studies published from June 1986 to November 2015 in English. Additionally, existing guidelines from other countries were consulted for review. A grey literature search was not required.

VALUES

The quality of evidence in this document was rated using the criteria described in the Report of the Canadian Task Force for Preventive Medicine rating scale (Table 1).

BENEFITS, HARMS AND/OR COSTS

Medical abortion is safe and effective. Complications from medical abortion are rare. Access and costs will be dependent on provincial and territorial funding for combination mifepristone/misoprostol and provider availability.

SUMMARY STATEMENTS

Introduction Pre-procedure care Medical abortion regimens Providing medical abortion Post-abortion care

RECOMMENDATIONS

Introduction Pre-procedure care Medical abortion regimens Providing medical abortion Post-abortion care.

State of family planning

Family planning and reproductive health services are uniquely impacted by policy and politics in the United States. Recent years have witnessed an unprecedented number of abortion restrictions, and research funding has decreased in related areas. Despite this, both the science and the implementation of improved family planning and abortion methods have progressed in the past decade. This article reviews the current state of family planning, as well as technologies and patient care opportunities for the future.

Abortion Surveillance - United States, 2012

PROBLEM/CONDITION

Since 1969, CDC has conducted abortion surveillance to document the number and characteristics of women obtaining legal induced abortions in the United States.

REPORTING PERIOD COVERED

2012.

DESCRIPTION OF SYSTEM

Each year, CDC requests abortion data from the central health agencies of 52 reporting areas (the 50 states, the District of Columbia, and New York City). The reporting areas provide this information voluntarily. For 2012, data were received from 49 reporting areas. For trend analysis, abortion data were evaluated from 47 areas that reported data every year during 2003-2012. Census and natality data, respectively, were used to calculate abortion rates (number of abortions per 1,000 women) and ratios (number of abortions per 1,000 live births).

RESULTS

A total of 699,202 abortions were reported to CDC for 2012. Of these abortions, 98.4% were from the 47 reporting areas that provided data every year during 2003-2012. Among these same 47 reporting areas, the abortion rate for 2012 was 13.2 abortions per 1,000 women aged 15-44 years, and the abortion ratio was 210 abortions per 1,000 live births. From 2011 to 2012, the total number and ratio of reported abortions decreased 4% and the abortion rate decreased 5%. From 2003 to 2012, the total number, rate, and ratio of reported abortions decreased 17%, 18%, and 14%, respectively, and reached their lowest level in 2012 for the entire period of analysis (2003-2012). In 2012 and throughout the period of analysis, women in their 20s accounted for the majority of abortions and had the highest abortion rates; women in their 30s and older accounted for a much smaller percentage of abortions and had lower abortion rates. In 2012, women aged 20-24 and 25-29 years accounted for 32.8% and 25.4% of all abortions, respectively, and had abortion rates of 23.3 and 18.9 abortions per 1,000 women aged 20-24 and 25-29 years, respectively. In contrast, women aged 30-34, 35-39, and ≥40 years accounted for 16.4%, 9.1%, and 3.7% of all abortions, respectively, and had abortion rates of 12.4, 7.3, and 2.8 abortions per 1,000 women aged 30-34 years, 35-39 years, and ≥40 years, respectively. Throughout the period of analysis, abortion rates decreased among women aged 20-24, 25-29, and 30-34 years by 24%, 18%, and 10%, respectively, whereas they increased among women aged ≥40 years by 8%. In 2012, adolescents aged <15 and 15-19 years accounted for 0.4% and 12.2% of all abortions, respectively, and had abortion rates of 0.8 and 9.2 abortions per 1,000 adolescents aged <15 and 15-19 years, respectively. From 2003 to 2012, the percentage of abortions accounted for by adolescents aged 15-19 years decreased 27% and their abortion rate decreased 40%. These decreases were greater than the decreases for women in any older age group. In contrast to the percentage distribution of abortions and abortion rates by age, abortion ratios in 2012 and throughout the entire period of analysis were highest among adolescents aged ≤19 years and lowest among women aged 30-39 years. Abortion ratios decreased from 2003 to 2012 for women in all age groups. In 2012, the majority (65.8%) of abortions were performed by ≤8 weeks' gestation, and nearly all (91.4%) were performed by ≤13 weeks' gestation. Few abortions (7.2%) were performed between 14-20 weeks' gestation or at ≥21 weeks' gestation (1.3%). From 2003 to 2012, the percentage of all abortions performed at ≤8 weeks' gestation increased 7%; the percentage performed at >13 weeks remained consistently low (≤9.0%). In 2012, among the 40 reporting areas that included medical (nonsurgical) abortion on their reporting form, a total of 69.4% of abortions were performed by curettage at ≤13 weeks' gestation, 20.8% were performed by early medical abortion (a nonsurgical abortion at ≤8 weeks' gestation), and 8.7% were performed by curettage at >13 weeks' gestation; all other methods were uncommon. Among abortions performed at ≤8 weeks' gestation that were eligible on the basis of gestational age for early medical abortion, 30.8% were completed by this method. The percentage of abortions reported as early medical abortions increased 10% from 2011 to 2012. Deaths of women associated with complications from abortions for 2012 are being investigated as part of CDC's Pregnancy Mortality Surveillance System. In 2011, the most recent year for which data were available, two women were identified to have died as a result of complications from known legal induced abortions. No reported deaths were associated with known illegal induced abortions.

INTERPRETATION

Among the 47 areas that reported data every year during 2003-2012, the notable decreases that occurred during 2008-2011 in the total number, rate, and ratio of reported abortions continued from 2011 to 2012 and resulted in historic lows for all three measures of abortion.

PUBLIC HEALTH ACTIONS

The data in this report can help to identify groups of women at greatest risk for abortion and can be used to guide and evaluate prevention efforts. Because unintended pregnancy is the major contributor to abortion, and unintended pregnancies are rare among women who use the most effective methods of contraception, increasing access to and use of these methods can help further reduce the number of unintended pregnancies, and therefore abortions, performed in the United States.