Time to second abortion or continued pregnancy following a first abortion: a retrospective cohort study

Factors influencing the risk of repeat termination of pregnancy: A register-based study in Finland

OBJECTIVE

This study aimed to assess how factors such as sociodemographic characteristics, termination of pregnancy (TOP) related factors and contraception affect the risk of repeat TOP.

MATERIALS AND METHOD

This is a nationwide register-based study of 193,741 women who had TOP(s) during 1987-2015, using the Finnish Register of Induced Abortions. The risk of various factors, such as age, marital status, residence, parity, TOP related factors and contraception, was assessed separately for each repeat TOP. Cox proportional hazard model was used to estimate risk of different factors for repeat TOPs.

RESULTS

21% of the women having TOP had repeat TOPs during the years 1987-2015. Among women with repeat TOPs, more than 70% had one repeat TOP and the rest had two or more. Older, married and rural or semi-urban women had reduced risk of repeat TOPs. Adjusted risk for one repeat TOP was higher among parous women (HR 1.67, 95% CI 1.61-1.72). No significant risk for repeat TOP was observed by method in sub-analysis for the recent period after 2006. Women using less reliable (HR 1.14, 95% CI 1.06-1.23) and unreliable (HR 1.33, 95% CI 1.23-1.43) contraception had increased risk of repeat TOP than women using reliable contraception.

CONCLUSION

Older age, being married, residing in rural or semi-urban areas and using reliable contraception were found to be protective factors for repeat TOPs whereas, parous women had higher risk for repeat TOPs. Proper counselling regarding contraception and use of reliable contraception immediately after TOP should be encouraged.

Centrality of Pregnancy and Prenatal Attachment in Pregnant Nulliparous After Recent Elective or Therapeutic Abortion

Background

There are two types of voluntary interruption of pregnancy: elective and therapeutic abortion. These forms are different for many reasons, and it is reasonable to assume that they can have negative consequences that can last until a subsequent gestation. However, no study has analyzed the psychological experience of gestation after a previous abortion, distinguishing the two forms of voluntary interruption of pregnancy.

Objective

This study aims to explore the level of prenatal attachment and centrality of pregnancy in nulliparous low-risk pregnant women with a recently (<3 years) previous elective or therapeutic abortion.

Methods

A total of 34 nulliparous pregnant women with a history of abortion (23 elective and 11 therapeutic abortion), aged from 27 to 48 years (mean = 37.17), were recruited in the maternity ward of a public hospital of the metropolitan area of Tuscany and Lombardy (Italy) during the third trimester of gestation. The participants filled out a battery of questionnaires aimed at assessing prenatal attachment and centrality of pregnancy.

Results

Analyses of variance showed that women with a history of elective abortion reported a higher centrality of pregnancy than women with a past therapeutic abortion. On the contrary, women with a past therapeutic abortion reported higher prenatal attachment.

Conclusion

Elective and therapeutic abortions are different experiences that impact the way women experience a subsequent pregnancy. Future research should further investigate the psychological experience of gestation after abortion.

What are the social correlates of subsequent abortions in Flanders, Belgium?

OBJECTIVE

To study whether the social correlates of subsequent abortions vary depending on the order of the abortion. Methodology: Drawing upon the Flemish abortion centres' anonymized patient records (2010-2019), discrete-time hazard models were used to examine whether individual abortion experiences across women's reproductive life course have different social correlates.

RESULTS

Overall, women who were in their twenties, of foreign origin, single, had non-tertiary education, were not in paid employment, had children, did not (consistently and without errors) use contraception and had a previous abortion through medication, had an elevated probability to experience subsequent abortions. While single women and women with a vulnerable socioeconomic status were more likely to have a second or third abortion, this difference is no longer prevalent when considering higher-order abortions. The hazard for higher-order abortions was more pronounced in women with a migration background, regardless of the order considered. Contraceptive use was unrelated to fourth or higher-order abortions.

CONCLUSION

Using discrete-time hazard models, we unpack individual abortion experiences across women's reproductive life courses. By studying the transitions into different orders of subsequent abortions separately, we provide a more detailed understanding of risk factors compared to other European studies. The social correlates vary by the order considered: A certain profile emerges for women who have a second or third abortion, but disintegrates when considering higher-order abortions. This knowledge enables clinicians and policymakers to better understand women who experience subsequent abortions and to tailor services best suited to their needs.

The Association Between Multiple Abortions Within 1 Year and Previous Postabortal Desired Contraception at an Urban, Public Hospital

Objectives: To determine the proportion of women undergoing multiple abortions within 1 year at an urban, public hospital and the association with desired contraception after the index abortion. Materials and Methods: We conducted a retrospective analysis of all women undergoing abortion up to 13 weeks and 6 days gestation at Stroger Hospital from June 1, 2012 to May 31, 2014. We examined the proportion of women with additional abortions up to 1 year after the index abortion and contraception desired at the index abortion. We also collected data about Chlamydia trachomatis (CT) and Neisseria gonorrhea (GC) infection in surgical abortion patients, to assess suitability for intrauterine device insertion immediately postabortion. Results: Of the 5,104 women with an abortion in the study period, 720 (14.1%) had at least one additional abortion within 1 year. Among women with multiple abortions, 153 (21.3%) selected Tier 1 contraception, 359 (49.8%) Tier 2, 103 (14.3%) Tier 3, and 105 (14.6%) were undecided or desired no method. The contraception desired at the index abortion did not differ significantly between women with and without subsequent abortions (p = 0.107). CT/GC coinfection and CT infection alone were associated with having multiple abortions over the 1-year period (p = 0.020 and p = 0.006). Conclusions: Among women presenting for abortion at an urban, public hospital, desired contraception did not differ significantly between women with multiple abortions versus one abortion within 1 year, but prevalence of CT/GC did. Women at high risk for multiple abortions may benefit from immediate postabortion IUD insertion to avoid unintended pregnancy, provided risk of infection is carefully evaluated.

Chlamydia testing and diagnosis following initiation of long-acting reversible contraception: A retrospective cohort study

BACKGROUND

Long-acting reversible contraception (LARC) effectively protects against pregnancy but provides no protection against sexually transmitted infections (STIs).

AIM

To compare rates of chlamydia testing and diagnosis for women initiating long-acting versus oral contraception.

MATERIALS AND METHODS

Retrospective cohort study involving data collection for 6160 women initiating post-abortion contraception at a large New Zealand regional public hospital abortion clinic (2009-2012), with chlamydia testing data obtained from the local laboratory during two-year follow up. Negative binomial regression modelling examined the effect of contraceptive method on two outcome measures: chlamydia testing and chlamydia diagnosis (adjusting for potential covariates of age, ethnicity, past chlamydia infection, pregnancy history) in year one and two of follow up.

RESULTS

Two thousand seven hundred and twenty nine women (44%) received a LARC and 1764 (28.6%) were prescribed oral contraception. Adjusted testing rates differed by contraceptive method only in year one (P < 0.01): with higher rates among copper intrauterine device users (relative risk (RR) 1.2, 95% CI 1.06-1.35), and lower rates for implant users (RR 0.84, 95% CI 0.72-0.99) compared with oral contraceptive users (reference group). No significant differences were observed in chlamydia diagnosis rates by contraceptive method (P > 0.05). Younger age, past chlamydia infection, Maori and Pacific ethnicity were associated with higher rates of chlamydia diagnosis (P < 0.01).

CONCLUSIONS

Known STI-related risk factors (age, ethnicity, past infection) but not contraceptive method were independently related to rates of subsequent chlamydia diagnosis. This suggests that increased LARC uptake would not occur at the expense of chlamydia control. Regular screening and risk reduction advice (including condom use) are important chlamydia control measures for at-risk groups.

Medical Abortion Provided by Nurse-Midwives or Physicians in a High Resource Setting: A Cost-Effectiveness Analysis

Objective

The objective of the present study is to calculate the cost-effectiveness of early medical abortion performed by nurse-midwifes in comparison to physicians in a high resource setting where ultrasound dating is part of the protocol. Non-physician health care professionals have previously been shown to provide medical abortion as effectively and safely as physicians, but the cost-effectiveness of such task shifting remains to be established.

Study design

A cost effectiveness analysis was conducted based on data from a previously published randomized-controlled equivalence study including 1180 healthy women randomized to the standard procedure, early medical abortion provided by physicians, or the intervention, provision by nurse-midwifes. A 1.6% risk difference for efficacy defined as complete abortion without surgical interventions in favor of midwife provision was established which means that for every 100 procedures, the intervention treatment resulted in 1.6 fewer incomplete abortions needing surgical intervention than the standard treatment. The average direct and indirect costs and the incremental cost-effectiveness ratio (ICER) were calculated. The study was conducted at a university hospital in Stockholm, Sweden.

Results

The average direct costs per procedure were EUR 45 for the intervention compared to EUR 58.3 for the standard procedure. Both the cost and the efficacy of the intervention were superior to the standard treatment resulting in a negative ICER at EUR -831 based on direct costs and EUR -1769 considering total costs per surgical intervention avoided.

Conclusion

Early medical abortion provided by nurse-midwives is more cost-effective than provision by physicians. This evidence provides clinicians and decision makers with an important tool that may influence policy and clinical practice and eventually increase numbers of abortion providers and reduce one barrier to women’s access to safe abortion.

EDUCATIONAL INEQUALITIES IN REPEAT ABORTION: A LONGITUDINAL REGISTER STUDY IN FINLAND 1975-2010

The proportion of repeat abortions among all abortions has increased over the last decades in Finland. This study examined the association of education with the likelihood of repeat abortion, and the change in this association over time using reliable longitudinal data. A unique set of register data from three birth cohorts were followed from age 20 to 45, including about 22,000 cases of repeat abortion, and analysed using discrete-time event-history models. Low education was found to be associated with a higher likelihood of repeat abortion. Women with low education had abortions sooner after the preceding abortion, and were more often single, younger and had larger families at the time of abortion than more highly educated women. The educational differences were more significant for later than earlier cohorts. The results show a lack of appropriate contraceptive use, possibly due to lack of knowledge of, or access to, services. There is a need to improve access to family planning services, and contraceptives should be provided free of charge. Register data overcome the common problems of under-reporting of abortion and attrition ensuring the results are reliable, unique and of interest internationally.

Regional variation in postabortion initiation of long-acting reversible contraception in New Zealand

OBJECTIVE

To determine whether there is regional variation in the immediate postabortion initiation of long-acting reversible contraception (LARC) in New Zealand.

MATERIALS AND METHODS

Retrospective analysis of nationally collected data on receipt of intrauterine and implantable contraception at the time of an abortion, together with demographic characteristics and region of residence for the year 2013.

RESULTS

Postabortion LARC initiation varied significantly between the 16 regions of New Zealand, ranging from 32% (95% CI 23.2-42) to 61.4% (95% CI 53.3-69). Implant use ranged from 6.8% to 32.7% across regions, and intrauterine method use ranged from 21.4% to 54.7%. Regional variation in total LARC uptake was most marked for under 20-year-olds (20.3% to 70.9%). The ratio of intrauterine to implant users ranged from 0.7 to 4.1 across regions, with intrauterine methods prescribed two and a half times more frequently nationwide.

CONCLUSIONS

These regional differences in postabortion LARC initiation suggest there are between-clinic differences in prescribing. Reasons for these differences need to be examined to identify and address any barriers faced by clinics in the routine provision of postabortion LARC. Equitable access to LARC at the time of an abortion is needed throughout New Zealand to assist women in the prevention of future unintended pregnancies.

Postabortion Initiation of Long-Acting Reversible Contraception by Adolescent and Nulliparous Women in New Zealand

PURPOSE

To describe changes in receipt of immediate postabortion long-acting reversible contraception (LARC) by adolescent and nulliparous women in New Zealand.

METHODS

Nationally collected data on immediate postabortion receipt of an intrauterine method (intrauterine device [IUD]/intrauterine system [IUS]) or contraceptive implant were analyzed to describe proportions and demographic characteristics of women receiving LARC between 2007 and 2013. Changes in uptake over time were presented for adolescent, nulliparous, and parous women.

RESULTS

Postabortion LARC uptake increased between 2007 and 2013, rising from 7.9% to 42.7% for adolescents and from 8.8% to 36.9% for nulliparous women. The increase was highest among nulliparous adolescents with a seven-fold increase in LARC uptake between 2007 and 2013. Adolescents had a five-fold increase and nulliparous women (of all ages) a four-fold increase. In 2013, IUD/IUS use was lowest among adolescents (22.4%) and increased with increasing age (43% by ages 40+ years), whereas implant use was highest among adolescents (20.3%) and decreased with increasing age (to 4.6% by age 40+ years). Nulliparous women had the lowest use of both IUD/IUS and implants in 2013, with 24.6% receiving an intrauterine method (compared with 43.2% for para 3+), and 12.3% an implant (compared with 17.5% for para 3+).

CONCLUSIONS

Despite an overall trend toward increased uptake of postabortion LARC by adolescent and nulliparous women, uptake in these groups still lags behind that of parous and older women. Reasons for differential uptake need to be explored and addressed if necessary to ensure all women have equitable access to the most effective methods of contraception.