Stressful life events, the incidence of infertility, and the moderating effect of maternal responsiveness: a longitudinal study

An Integrative Review of Adverse Childhood Experiences and Reproductive Traumas of Infertility and Pregnancy Loss

INTRODUCTION

Adverse childhood experiences (ACEs) can lead to chronic diseases and mental health conditions; however, less is known about the associations of ACEs to the reproductive traumas of infertility and pregnancy loss. The purpose of this integrative review was to explore relationships between ACEs and the reproductive traumas of infertility and pregnancy loss.

METHODS

We searched PubMed, SocINDEX, PsycINFO, and CINAHL databases in December 2021 and 2022. Inclusion criteria were qualitative or quantitative research, systematic or integrative reviews, or meta-analysis articles in English that were peer-reviewed and full-text, addressing any ACE from the ACE Checklist and infertility or pregnancy loss. A total of 20 articles were included in the review. We used Whittemore and Knafl's integrative review framework, Preferred Reporting Items for Systematic Reviews and Meta-analyses for reporting, and Covidence software for data management. A quality appraisal using Joanna Briggs Institute critical appraisal tools was performed. Relevant data were extracted into a matrix for iterative comparison.

RESULTS

Twenty studies were included in the review. Results support there may be an association between pregnancy loss and infertility in women with a history of ACE, although results are mixed between infertility and ACEs. We also identified other concepts related to ACEs and the reproductive traumas of infertility and pregnancy loss and include racial and ethnically diverse populations, social determinants of health, modifiable risk factors, and stress appraisals.

DISCUSSION

Midwives and other women's health care providers should be aware that ACEs may be associated with pregnancy loss and infertility, although additional research is needed to further explore the relationships with infertility, mental health, and hypothalamic-pituitary-adrenal axis dysregulation from allostatic load. Trauma-informed care and the development of effective interventions are warranted for women who experience ACEs. Providers should consider earlier interventions, including emotional services, for women with a history of ACE or reproductive trauma.

Understanding the Accumulation of Health-Related Inequities Over the Life Course Using the Mean Cumulative Count

Understanding how health inequities develop over time is necessary to inform interventions, but methods for doing so are underutilized. We provide an example of the accumulation of stressful life events using the mean cumulative count (MCC), which estimates the expected number of events per person as a function of time, allowing for censoring and competing events. Data came from the National Longitudinal Survey of Youth 1997, a nationally representative data set. To compare the MCC with standard practice, we present the proportions of persons experiencing 1, 2, and ≥3 stressful events and the cumulative probability of experiencing at least 1 event by the end of follow-up. Our sample included 6,522 individuals aged 18-33 years who were followed for a median of 14 years. Using the MCC, by age 20 years the expected number of encounters was 56 events per 100 participants for Black non-Hispanic persons, 47 per 100 for White non-Hispanic persons, and 50 per 100 for Hispanic persons. By age 33 years, inequities grew to 117, 99, and 108 events per 100 persons, respectively. The MCC revealed that inequities in stressful events accumulate over the course of early adulthood, partially driven by repeat events; this information was not evident from conventional approaches. This method can be used to identify intervention points for disrupting the accumulation of repeat events to improve health equity.

Maternal adverse childhood experiences and pregnancy intentions

PURPOSE

The current study investigates the association between maternal adverse childhood experiences (ACEs) and having an unwanted (i.e., a pregnancy that was undesired) or mistimed pregnancy (i.e., a pregnancy that occurred sooner than wanted).

METHODS

Data are from the 2018 North Dakota and South Dakota Pregnancy Risk Assessment Monitoring System (PRAMS) (N = 1897). Multinomial logistic regression analyses are used to assess the association between levels of ACE exposure and having an unwanted or mistimed pregnancy relative to an intended pregnancy.

RESULTS

Findings demonstrated that women with three ACEs (Relative Risk Ratio [RRR] = 2.157, 95% confidence interval [CI], 1.121-4.151) and four or more ACEs (RRR = 1.836, 95% CI, 1.181-2.854) had approximately twice the relative risk of having an unwanted pregnancy (vs. an intended pregnancy) compared to women with 0 ACEs. There was no association between ACEs and reporting a mistimed pregnancy.

CONCLUSIONS

These findings add to a burgeoning literature detailing how accumulating ACEs can create challenges for family planning by increasing the likelihood of having an unintended pregnancy. Study results suggest the need to devote greater resources to the prevention of ACEs and unintended pregnancies.