Matthew F. Reeves

Impact of immediate postabortal insertion of intrauterine contraception on repeat abortion

BACKGROUND Of the 1.3 million abortions performed annually in the United States, approximately half are repeat procedures. Immediate postabortal intrauterine device (IUD) insertion is a safe, effective, practical and underutilized intervention that we hypothesize will significantly decrease repeat unintended pregnancy and abortion. STUDY DESIGN All women receiving immediate postabortal IUD insertion in eight clinics of a Northern California Planned Parenthood agency during a 3-year period comprise the IUD cohort. We selected a cohort of controls receiving abortions but choosing other, non-IUD contraception on the day of the abortion visit in a 2:1 ratio matched by date of abortion. We obtained follow-up data on repeat abortions within the agency for both cohorts through 14 months after the 3-year period. We evaluated differences in repeat abortion between cohorts. All analyses were intent-to-treat. RESULTS Women who received an immediate postabortal IUD had a lower rate of repeat abortions than controls (p<.001). Women who received a postabortal IUD had 34.6 abortions per 1000 woman-years of follow-up compared to 91.3 for the control group. The hazard ratio for repeat abortion was 0.38 [95% confidence interval (CI), 0.27-0.53] for women receiving a postabortal IUD compared to controls. When adjusted for age, race/ethnicity, marital status, and family size, the hazard ratio was 0.37 (95% CI, 0.26-0.52). CONCLUSION Immediate postabortal intrauterine contraception has the potential to significantly reduce repeat abortion.

Postplacental or Delayed Insertion of the Levonorgestrel Intrauterine Device After Vaginal Delivery: A Randomized Controlled Trial

OBJECTIVE: To estimate whether 6-month use of the levonorgestrel-releasing intrauterine device (IUD) would be higher when insertion occurred within 10 minutes of placental delivery compared with 6–8 weeks postpartum. METHODS: We enrolled pregnant women planning vaginal deliveries and desiring a postpartum levonorgestrel-releasing IUD. Patients were randomly assigned when admitted in labor to postplacental or delayed IUD insertion. The women followed up in person at 6–8 weeks and 6 months and were contacted by telephone at 3 months. Women were ineligible for a study IUD postenrollment for intrapartum events including infection, hemorrhage, and cesarean delivery; these women were contacted by phone at 3 and 6 months. Expelled IUDs were replaced per patient preference. RESULTS: Successful IUD placement occurred in 50 of 51 participants (98.0%) and 46 of 51 participants (90.2%) in the postplacental and delayed groups, respectively (P=.2). Expulsion within 6 months occurred in 12 of 50 (24.0%; 95% confidence interval [CI], 13.1–38.2) and two of 46 (4.4%; 95% CI 0.5–14.8) participants, respectively (P=.008). Intrauterine device use at 6 months was 43 of 51 (84.3%; 95% CI 71.4–93.0) and 39 of 51 (76.5%; 95% CI 62.5–87.2), respectively (P=.32). For ineligible patients, only 11 of 41 (26.8%) women were using IUDs at 6 months and two (4.9%) had become pregnant. CONCLUSION: Intrauterine device use 6 months after delivery is similar in women who have postpartum or scheduled delayed IUD placement through a study after replacement of expelled IUDs. Expulsions are significantly higher with postplacental compared with delayed IUD placement. Women asked to follow up with their own health care providers for delayed insertion are significantly less likely to receive an IUD. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, www.clinicaltrials.gov, NCT00476021. LEVEL OF EVIDENCE: I

Immediate versus Delayed IUD Insertion after Uterine Aspiration

BACKGROUND Intrauterine devices (IUDs) provide highly effective, reversible, long-term contraception that is appropriate for many women after first-trimester uterine aspiration. However, the effects of immediate versus delayed IUD insertion after uterine aspiration on rates of complications and IUD use are uncertain. METHODS We performed a randomized noninferiority trial involving women undergoing uterine aspiration for induced or spontaneous abortion at 5 to 12 weeks of gestation who desired an IUD. Subjects were randomly assigned (in a 5:6 ratio) to IUD insertion immediately after the procedure or 2 to 6 weeks afterward (delayed insertion). The primary outcome was the rate of IUD expulsion 6 months after IUD insertion; an expulsion rate 8 percentage points higher in the immediate-insertion group was defined as inferior. RESULTS Among 575 women who underwent randomization, an IUD was inserted in 100% (258 of 258) of the women in the immediate-insertion group and in 71.3% (226 of 317) of those in the delayed-insertion group (difference, 28.7 percentage points; 95% confidence interval [CI], 23.7 to 33.7). The 6-month expulsion risk was 5.0% (13 of 258 women) after immediate insertion and 2.7% (6 of 226) after delayed insertion (difference, 2.3 percentage points; 95% CI, -1.0 to 5.8), which was consistent with the predefined criterion for noninferiority. Six-month rates of IUD use were higher in the immediate-insertion group (92.3%, vs. 76.6% after delayed insertion; P<0.001). Adverse events were rare and did not differ significantly between groups. No pregnancies occurred in the immediate-insertion group; five occurred in the delayed-insertion group (P=0.07), all in women who never received an IUD. CONCLUSIONS The 6-month rate of expulsion of an IUD after immediate insertion was higher than but not inferior to that after delayed insertion. Immediate insertion resulted in higher rates of IUD use at 6 months, without an increased risk of complications. (Funded by the Susan Thompson Buffett Foundation; ClinicalTrials.gov number, NCT00562276.).

Feasibility of telephone follow-up after medical abortion

BACKGROUND This study was conducted to assess the feasibility of using telephone calls combined with high-sensitivity urine pregnancy testing as a primary method of follow-up after medical abortion. METHODS We enrolled 139 women up to 63 days of gestation to receive mifepristone 200 mg orally and misoprostol 800 mcg vaginally or buccally, per their choice. Participants were contacted by phone one week after mifepristone administration and interviewed using standardized questions. If the subject or clinician thought the pregnancy was not expelled, the subject returned for an ultrasound examination. Otherwise, subjects performed high-sensitivity home urine pregnancy testing 30 days after the mifepristone and were called within 3 days of the test. Those with positive pregnancy tests returned for an ultrasound examination. Those with negative tests required no further follow-up. RESULTS Six of the 139 (4.3%, 95% CI 1.6-9.1%) subjects presented prior to Phone Call 1 for an in-person visit. All 133 (100%, 95% CI 97.8-100%) subjects eligible for their first telephone follow-up were contacted. Eight of the 133 (6.1%, 95% CI 2.6-11.5%) women were asked to return for evaluation and all did so (100%, 95% CI 63.1-100%). Eight of the 133 women eligible for the 30 day phone call presented for an interim visit prior to the call. After 30 days, 116 of the 117 (99.1%, 95% CI 97.5-100%) eligible subjects were contacted. One subject was not reached for the day 30 phone call. Twenty-seven of the 116 (23.3%, 95% CI 15.6-31.0%) subjects had a positive pregnancy test and required follow-up. Two of these subjects (7.4%, 95% CI 1.0-24.2%) did not return for in-person follow-up. Two of the 116 (1.7%, 95% CI 0.2-6.1%) subjects had inconclusive pregnancy tests and were asked to return for follow-up. One of these subjects (50%, 95% CI 1.2-98.7%) did not return. Complete follow-up was achieved in 135 of the 139 subjects (97.1%, 95% CI 94.3-99.9%). None of the 26 women evaluated for a positive or inconclusive pregnancy test had a gestational sac or continuing pregnancy. CONCLUSION Telephone follow-up combined with urine pregnancy testing after medical abortion is a feasible alternative to routine ultrasonography or serial serum hCG measurements.

Increasing intrauterine contraception use by reducing barriers to post-abortal and interval insertion

BACKGROUND We hypothesize that barriers to IUD insertion are central to low utilization in the USA. This study evaluates methods to minimize barriers, including post-abortal insertion, staff training and simplified screening. STUDY DESIGN We obtained data on IUD utilization during three study periods: a control period (Period 1), a period after initiating post-abortal insertion and staff training (Period 2), and a period with these interventions plus simplified screening for interval insertions (Period 3). We evaluated IUD utilization, associated complications and utilization at a similar local agency in which the interventions were not implemented. RESULTS We inserted 2172 IUDs during the study, including 1493 interval and 679 post-abortal insertions. In the control period, there were 28 monthly IUD insertions on average, compared to 71 (a 151% increase) and 122 (a 334% increase) in Periods 2 and 3, respectively. IUD utilization at the nearby agency remained relatively constant. Complications remained low. CONCLUSIONS IUD utilization can be substantially increased through relatively simple, low-cost interventions, with significant potential to reduce unintended pregnancy.

Race, insurance status, and tubal sterilization

OBJECTIVE: To examine the independent effects of race or ethnicity and insurance status on use of tubal sterilization rates. METHODS: This study used cross-sectional data collected by the 2002 National Survey of Family Growth. The survey is designed to represent women and men aged 15–44 years in the household population of the United States. Our main outcome measure was tubal sterilization at any time before interview. A multivariable logistic regression model was used to estimate the effects of race or ethnicity and insurance status on rates of tubal sterilization after adjusting for important confounders. RESULTS: The sample consisted of 7,643 women: 66% were white, 15% were Hispanic, and 14% were African American; 68% had private insurance and 32% had public or no insurance. After adjusting for age, insurance status, parity, income, education, marital status, and religion, African-American women were more likely than white women to undergo tubal sterilization (adjusted odds ratio 1.43, 95% confidence interval 1.08–1.88). After adjusting for age, race or ethnicity, parity, income, education, marital status, and religion, women with public or no insurance were more likely to undergo sterilization compared with women with private insurance (adjusted odds ratio 1.38, 95% confidence interval 1.09–1.74). CONCLUSION: African-American women and women with no or public insurance were more likely to have undergone tubal sterilization compared with white women and women with private insurance, respectively. Additional research to identify factors that influence womens decision to undergo sterilization is warranted. LEVEL OF EVIDENCE: II

Prevention of infection after induced abortion

One known complication of induced abortion is upper genital tract infection, which is relatively uncommon in the current era of safe, legal abortion. Currently, rates of upper genital tract infection in the setting of legal induced abortion in the United States are generally less than 1%. Randomized controlled trials support the use of prophylactic antibiotics for surgical abortion in the first trimester. For medical abortion, treatment-dose antibiotics may lower the risk of serious infection. However, the number-needed-to-treat is high. Consequently, the balance of risk and benefits warrants further investigation. Perioperative oral doxycycline given up to 12 h before a surgical abortion appears to effectively reduce infectious risk. Antibiotics that are continued after the procedure for extended durations meet the definition for a treatment regimen rather than a prophylactic regimen. Prophylactic efficacy of antibiotics begun after abortion has not been demonstrated in controlled trials. Thus, the current evidence supports pre-procedure but not post-procedure antibiotics for the purpose of prophylaxis. No controlled studies have examined the efficacy of antibiotic prophylaxis for induced surgical abortion beyond 15 weeks of gestation. The risk of infection is not altered when an intrauterine device is inserted immediately post-procedure. The presence of Chlamydia trachomatis, Neisseria gonorrhoeae or acute cervicitis carries a significant risk of upper genital tract infection; this risk is significantly reduced with antibiotic prophylaxis. Women with bacterial vaginosis (BV) also have an elevated risk of post-procedural infection as compared with women without BV; however, additional prophylactic antibiotics for women with known BV has not been shown to reduce their risk further than with use of typical pre-procedure antibiotic prophylaxis. Accordingly, evidence to support pre-procedure screening for BV is lacking. Neither povidone-iodine nor chlorhexidine have been shown to alter the risk of infection when used as cervicovaginal preparation. However, chlorhexidine appears to be more effective than povidone iodine at reducing bacteria within the vagina. The Society of Family Planning recommends the routine use of antibiotic prophylaxis, preferably with doxycycline, before surgical abortion. Use of treatment doses of antibiotics with medical abortion may decrease the rare risk of serious infection but universal requirement for such treatment has not been established.

Insertion of intrauterine contraceptives immediately following first- and second-trimester abortions.

BACKGROUND The study was conducted to assess the continuation and patient satisfaction with intrauterine contraception (IUC) insertion immediately after elective abortion in the first and second trimesters in an urban, public hospital-based clinic. STUDY DESIGN A cohort of 256 women who elected to have insertion of a copper-T IUC (CuT380a) or a levonorgestrel-releasing IUC (LNG-IUC) were followed postoperatively by phone calls or chart review to evaluate satisfaction and continuation with the method. RESULTS Of our 256 subjects, 123 had first-trimester abortions and 133 had second-trimester abortions (14 or more weeks). Median time to follow-up was 8 weeks (range 7-544 days). Nineteen discontinuations occurred: eight (6.5%, 95% CI 2.8-12.4%) following first-trimester and 11 (8.3%, 95% CI 4.2-14.3%) following second-trimester abortion (p=.6). Five women reported expulsion; one (0.8%, 95% CI 0.0-4.4%) in the first-trimester group and four (3.0%, 95% CI 0.8-7.5%) in the second-trimester group. (p=.4) Seven infections resulting in discontinuation occurred (2.7%, 95% CI 1.1-5.6%); none were positive for gonorrhea or chlamydia at time of insertion. No perforations occurred. Nearly all (93.8%) of the women were satisfied with IUC. Rates of satisfaction between women after first- and second-trimester abortions were equal. CONCLUSION In an urban clinic, IUC has high initial continuation and high patient satisfaction when inserted immediately following either first- or second-trimester abortions.

Contraceptive effectiveness of immediate compared with delayed insertion of intrauterine devices after abortion: a decision analysis.

OBJECTIVE: To model rates of pregnancy and repeat abortion among women choosing intrauterine contraception after an abortion when the intrauterine device (IUD) is inserted immediately after the procedure or at a follow-up visit. METHODS: We created an evidence-based decision model of women desiring to avoid pregnancy for the 12 months after an abortion. Base case assumptions were pregnancy rates of 0.5% with an IUD and 20% without an IUD, 1-year IUD continuation rate of 80%, an additional 5% risk of IUD expulsion with immediate insertion, and a 35% risk of not returning for a follow-up visit for IUD insertion. Sensitivity analyses and Monte Carlo simulation were performed. RESULTS: Immediate IUD insertion after abortion prevented 52 pregnancies over the following year for every 1,000 women modeled by using base case assumptions. Sensitivity analyses show the model to be most dependent on the rate of expulsion in the immediate-insertion group and the proportion not returning in the delayed-insertion group. Monte Carlo analysis showed that immediate insertion resulted in fewer pregnancies than delayed insertion in 91% of scenarios, with an absolute mean difference of 28 pregnancies per 1,000 women in the initial year after abortion. If 20% of U.S. women undergoing abortion opted for immediate insertion, an estimated 20,000 repeat abortions would be prevented in the first year. CONCLUSION: Women who have an IUD inserted immediately after an abortion are expected to have fewer pregnancies and repeat abortions than women scheduled for insertion of an IUD at a follow-up visit. LEVEL OF EVIDENCE: II

Measuring the Effects of Unintended Pregnancy on Women’s Quality of Life

BACKGROUND This study was conducted to assess the potential impact of an unintended pregnancy on womens quality of life. STUDY DESIGN We asked 192 nonpregnant women to report how they would feel if they learned that they were pregnant using a visual analog scale (VAS), a time trade-off (TTO) metric, a standard gamble (SG) metric and a willingness-to-pay (WTP) metric. RESULTS Womens anticipated responses to an unintended pregnancy varied widely. Using a VAS, 8% reported pregnancy would make them feel like they were dying. To avoid pregnancy, 28% of women were willing to trade time from the end of their life (TTO), 16% of women were willing to accept an immediate risk of death (SG) and 60% of women were willing to pay some amount of money (WTP). On average, women, using the VAS, TTO and SG metrics, reported that an unintended pregnancy would create a health utility state (where 0 represents death and 1 represents perfect health) of 0.487, 0.992 and 0.997, respectively. CONCLUSION The anticipated effects of pregnancy on womens quality of life should be integrated into cost-effectiveness analyses of family planning services.