The associations between childhood maltreatment and pregnancy complications: A systematic review and meta-analysis

Nucleus accumbens volume mediates the association between prenatal adversity and attention problems in youth

Exposure to adversity during the perinatal period has been associated with cognitive difficulties in children. Given the role of the nucleus accumbens (NAcc) in attention and impulsivity, we examined whether NAcc volume at age six mediates the relations between pre- and postnatal adversity and subsequent attention problems in offspring. 306 pregnant women were recruited as part of the Growing Up in Singapore Towards Healthy Outcomes Study. Psychosocial stress was assessed during pregnancy and across the first 5 years postpartum. At six years of age, children underwent structural MRI and, at age seven years, mothers reported on their children's attention problems. Separate factor analyses conducted on measures of pre- and postnatal adversity each yielded two latent factors: maternal mental health and socioeconomic status. Both pre- and postnatal maternal mental health predicted children's attention difficulties. Further, NAcc volume mediated the relation between prenatal, but not postnatal, maternal mental health and children's attention problems. These findings suggest that the NAcc is particularly vulnerable to prenatal maternal mental health challenges and contributes to offspring attention problems. Characterizing the temporal sensitivity of neurobiological structures to adversity will help to elucidate mechanisms linking environmental exposures and behavior, facilitating the development of neuroscience-informed interventions for childhood difficulties.

Childhood adversity and risk of endometriosis, fibroids, and polycystic ovary syndrome: a systematic review

IMPORTANCE

Although childhood adversity has been extensively studied in relation to various health outcomes, investigation of its association with gynecological conditions remains limited.

OBJECTIVE

To systematically review studies examining the effect of childhood adversity on the prevalence of three gynecological conditions: endometriosis; fibroids; and polycystic ovary syndrome (PCOS) in the population.

EVIDENCE REVIEW

Six databases were searched from inception to March 12, 2024. Observational studies of women with exposure to adversity before the age of 18 and an outcome of endometriosis, fibroids, and/or PCOS were eligible for inclusion. Studies were summarized through a qualitative synthesis. We evaluated the risk of bias using the Newcastle-Ottawa Scale.

FINDINGS

Seven studies that reported on the association between a form of childhood adversity and endometriosis, fibroids, and or PCOS were selected for review. All seven studies received a moderate risk of bias score. Cumulative exposure to childhood adversity was associated with an increased risk of endometriosis and fibroids. Childhood exposure to sexual abuse was associated with an increased risk of endometriosis and fibroids. Exposure to physical abuse in childhood was associated with a greater risk of fibroids.

CONCLUSION AND RELEVANCE

A small number of studies have shown an association between childhood adversity and the development of endometriosis and fibroids in later life. These initial findings warrant further investigation in larger studies using standardized measures.

An Integrative Review Exploring Womens' Experiences of Retraumatization Within Perinatal Services

INTRODUCTION

Evidence indicates that retraumatization has a detrimental effect for those women who are accessing perinatal services. One in five women worldwide has a history of childhood adversity. Between 18% and 34% of women experience trauma, which is a well-known risk factor for the onset of chronic mental health disorders. There is a lack of evidence on women's experiences on retraumatization in perinatal care settings and how to prevent retraumatization from occurring. The purpose of this study was to conduct an integrative review on women experiences of retraumatization to determine preventive measures within perinatal services.

METHODS

This integrative review followed Whittemore and Knafl's 5-stage framework as it allows for the inclusion and integration of diverse research methodologies into an overall synthesis of the evidence. A systematic search of 5 databases was conducted (Web of Science, MEDLINE, CINAHL, ASSIA, and PsychINFO) with no date, language, or geographical limits set due to the paucity of research published in this subject area. This review was conducted and reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

RESULTS

Fifteen studies met the inclusion criteria and were included in the thematic synthesis. The review identified that participants across the studies had a history of child sexual abuse, sexual abuse, and rape. Three main themes plus subthemes were identified: (1) activating (subthemes: positions in labor, intimate procedures, communications with health care professionals, loss of control); (2) outcomes (subtheme: emotional responses); and (3) interventions reducing or preventing retraumatization (subthemes: role of the health care professional, screening for abuse and history of trauma).

DISCUSSION

Our findings demonstrate that women are experiencing retraumatization in perinatal services, and there is evidence of formalized approaches being applied in clinical settings to prevent retraumatization from occurring. This study is the first to examine the factors that contribute to retraumatization in perinatal services and make recommendations to reduce the harmful practices in place in perinatal care settings.

Childhood Maltreatment and Perinatal Complications: A Scoping Review of Official Health Data

Child maltreatment (CM) poses significant risks to victims, resulting in enduring physical, psychological, and developmental consequences. Adult survivors of CM seem especially vulnerable to perinatal complications. However, existing research on perinatal outcomes presents mixed results and relies heavily on self-reported data, which may not align with official medical data. Hence, a systematic review using official health data may provide clarity on this association; it may orient future research and the provision of perinatal services. This scoping review aimed to synthesize and evaluate the quality of the literature that utilizes official health data to explore associations between CM and perinatal complications. Following Arksey and O'Malley's model, searches across four databases (PsycINFO, MEDLINE, Scopus, and ProQuest Dissertations/Thesis) produced 8,870 articles. After screening, 23 articles met the inclusion criteria (e.g., recorded perinatal complications using official health data, and peer-reviewed studies or dissertation). Evidence indicates CM survivors have less prenatal care visits, more fetal loss and preterm births, lower gestational age, and increases in emergency cesarean sections. Adults had more cervical insufficiency, lower episiotomies and sphincter ruptures, and overall pregnancy and postpartum complications while adolescents had lower Apgar scores. No associations were observed on other outcomes (e.g., vaginal bleeding, group B streptococcus, and fetal distress). Mixed findings emerged for other perinatal and maternal health concerns such as birth weight and blood pressure. CM survivors may face an increased risk of experiencing perinatal complications. Findings point to the relevance of leveraging health data for CM research and adopting trauma-informed practices in perinatal services.

Childhood adversity and accelerated reproductive events: a systematic review and meta-analysis

OBJECTIVE

Accelerated female reproductive events represent the early onset of reproductive events involving puberty, menarche, pregnancy loss, first sexual intercourse, first birth, parity, and menopause. This study aimed to explore the association between childhood adversity and accelerated female reproductive events.

DATA SOURCES

PubMed, Web of Science, and Embase were systematically searched from September 22, 2022 to September 23, 2022.

STUDY ELIGIBILITY CRITERIA

Observational cohort, cross-sectional, and case-control studies in human populations were included if they reported the time of reproductive events for female individuals with experience of childhood adversity and were published in English.

METHODS

Two reviewers independently screened studies, obtained data, and assessed study quality, and conflicts were resolved by a third reviewer. Dichotomous outcomes were evaluated using meta-analysis, and pooled odds ratios and 95% confidence intervals were generated using random-effects models. Moderation analysis and meta-regression were used to investigate heterogeneity.

RESULTS

In total, 21 cohort studies, 9 cross-sectional studies, and 3 case-control studies were identified. Overall, female individuals with childhood adversity were nearly 2 times more likely to report accelerated reproductive events than those with no adversity exposure (odds ratio, 1.91; 95% confidence interval, 1.33-2.76; I2=99.6%; P<.001). Moderation analysis indicated that effect sizes for the types of childhood adversity ranged from an odds ratio of 1.61 (95% confidence interval, 1.23-2.09) for low socioeconomic status to 2.13 (95% confidence interval, 1.14-3.99) for dysfunctional family dynamics. Among the 7 groups based on different reproductive events, including early onset of puberty, early menarche, early sexual initiation, teenage childbirth, preterm birth, pregnancy loss, and early menopause, early sexual initiation had a nonsignificant correlation with childhood adversity (odds ratio, 2.70; 95% confidence interval, 0.88-8.30; I2=99.9%; P<.001). Considerable heterogeneity (I2>75%) between estimates was observed for over half of the outcomes. Age, study type, and method of data collection could explain 35.9% of the variance.

CONCLUSION

The literature tentatively corroborates that female individuals who reported adverse events in childhood are more likely to experience accelerated reproductive events. This association is especially strong for exposure to abuse and dysfunctional family dynamics. However, the heterogeneity among studies was high, requiring caution in interpreting the findings and highlighting the need for further evaluation of the types and timing of childhood events that influence accelerated female reproductive events.

Childhood Trauma and Somatic and Mental Illness in Adulthood

BACKGROUND

Childhood trauma is associated with somatic and mental illness in adulthood. The strength of the association varies as a function of age, sex, and type of trauma. Pertinent studies to date have mainly focused on individual diseases. In this study, we investigate the association between childhood trauma and a multiplicity of somatic and mental illnesses in adulthood.

METHODS

Data from 156 807 NAKO Health Study participants were analyzed by means of logistic regressions, with adjustment for age, sex, years of education, and study site. The Childhood Trauma Screener differentiated between no/minor (n = 115 891) and moderate/severe childhood trauma (n = 40 916). The outcome variables were medical diagnoses of five somatic and two mental health conditions as stated in the clinical history.

RESULTS

Persons with childhood trauma were more likely to bear a diagnosis of all of the studied conditions: cancer (odds ratio [OR] = 1.10; 95% confidence interval: [1.05; 1.15]), myocardial infarction (OR = 1.13 [1.03; 1.24]), diabetes (OR = 1.16, [1.10; 1.23]), stroke (OR = 1.35 [1.23; 1.48]), chronic obstructive pulmonary disease (OR = 1.45 [1.38; 1.52]), depression (OR = 2.36 [2.29; 2.43]), and anxiety disorders (OR = 2.08 [2.00; 2.17]). All of these associations were stronger in younger persons, regardless of the nature of childhood trauma. Differences between the sexes were observed only for some of these associations.

CONCLUSION

Childhood trauma was associated with a higher probability of developing mental as well as somatic illness in adulthood. As childhood trauma is an element of individual history that the victim has little to no control over, and because the illnesses that can arise in adulthood in association with it are a heavy burden on the affected persons and on society, there is a need for research on these associations and for the development of preventive measures.

Exploring the relationships between child maltreatment and risk factors for pregnancy complications

OBJECTIVE

This study explored the pathway underlying the relationships between child maltreatment (CM) subtypes (i.e., physical, sexual, and emotional abuse and neglect) and factors associated with a heightened risk of pregnancy complications by examining post-traumatic stress disorder (PTSD) symptoms as a potential mediator.

METHODS

A sample of 98 pregnant parents between the ages of 18 and 29 years was recruited through social media and community organizations throughout Canada. Participants completed a series of surveys on their exposure to CM, PTSD symptoms, and pregnancy experiences on a secure online platform. Following data cleaning procedures, 85 participants were included in this study.

RESULTS

Four separate mediation analyses were conducted with child neglect, physical abuse, sexual abuse, and emotional abuse as factors associated with a heightened risk of pregnancy complications (i.e., a congregate score of limited prenatal care, weight gain concerns, smoking, second-hand smoke, alcohol consumption, substance use, and insufficient food intake during pregnancy). Each CM subtype was associated with increased PTSD symptoms, which were in turn associated with the presence of more factors known for increasing the risk of pregnancy complications. Neglect, physical abuse, sexual abuse, and emotional abuse were all indirectly associated with the presence of more factors associated with a heightened risk of pregnancy complications through their association with PTSD symptoms.

CONCLUSIONS

Findings from this study could encourage prenatal care providers to screen for CM history and PTSD symptoms. Furthermore, mental health treatment early in the prenatal period may improve pregnant parents' health and lower their risk of pregnancy complications.