Examining the Influence of Racial Discrimination on Adverse Birth Outcomes: An Analysis of the Virginia Pregnancy Risk Assessment Monitoring System (PRAMS), 2016-2018

Exposure to Racism and Adverse Pregnancy Outcomes for Black Women: A Systematic Review and Meta-Analysis

Research suggests that stress due to racism may underlie the disproportionately high rates of adverse pregnancy outcomes experienced by Black women in the US. Study objectives: (1) Identify forms of systemic racism affecting pregnancy outcomes and (2) increase understanding about the role of racism in adverse pregnancy outcomes for Black women. A systematic review was conducted to explore the relationship between systemic racism and pregnancy outcomes for Black women. Searches were performed using EBSCO Academic Search Complete, CINAHL Complete, and Consumer Health Complete first between January to April 2021 and subsequently between November 2023 to January 2024. Included studies were observational, written in English, had full-text availability, examined at least one form of systemic racism and pregnancy outcome, and reported results for Black women. A meta-analysis was performed using a random effects model, summary effect estimates were pooled by pregnancy outcome. The I2 statistic was used to measure heterogeneity between studies. A total of 32 studies were included in the review. Significant pooled effects of exposure to systemic racism were observed for preterm birth 0.30 (95% CI 0.12-0.48), small for gestational age 0.31 (95% CI 0.05-0.58), and low birth weight 0.24 (95% CI 0.11-0.37). Among studies that compared results by race, exposure to systemic racism had a significant and rather large effect on preterm birth for Black women (ds = 0.62; 95% CI 0.06-0.41). Exposure to systemic racism has a significant effect on preterm birth, small for gestational age, and low birth weight for Black women. Having knowledge of how racism contributes to stress and poor pregnancy outcomes can help health professionals improve delivery of quality care to Black women. Future research should continue identifying forms of racism positively related to adverse pregnancy outcomes.

Associations Among Racial Discrimination, Perceived Stress, and Birth Satisfaction in Black Women in the Postpartum Period

OBJECTIVE

To examine associations among experiences of racial discrimination, perceived stress, and birth satisfaction and to test if perceived stress mediates the relationship between racial discrimination and birth satisfaction among Black women in the postpartum period.

DESIGN

Secondary analysis of data from the Biosocial Impact on Black Births study.

SETTING

A postpartum unit of a large hospital in Central Florida.

PARTICIPANTS

Black women (N = 154) in the postpartum period.

METHODS

Participants completed the lifetime Experiences of Discrimination scale, Perceived Stress Scale and Birth Satisfaction Scale-Revised between 24 hours and 23 days after birth. We calculated descriptive statistics and Spearman's ρ correlation coefficients to evaluate associations among variables. We used multiple linear regression to evaluate perceived stress as a mediator between racial discrimination and birth satisfaction.

RESULTS

Racial discrimination had a positive association with perceived stress (β = 2.445, p = .03), and perceived stress had a negative association with birth satisfaction (β = -0.221, p = .02). Racial discrimination had no significant direct effect on birth satisfaction (β = -0.091, p = .94); therefore, perceived stress did not mediate the relationship.

CONCLUSION

More experiences of discrimination over the life span were associated with higher levels of perceived stress. Participants who reported higher levels of perceived stress reported lower levels of birth satisfaction. Our study adds to the body of knowledge regarding associations between racial discrimination and perceived stress and perceived stress and birth satisfaction.

Discrimination and perinatal depressive symptoms: The protective role of social support and resilience

BACKGROUND

Discrimination is an important social determinant of perinatal depression; however, evidence is limited regarding modifiable social and psychological factors that may moderate this association. We examined whether social support and resilience could protect against the adverse effects of discrimination on perinatal depressive symptoms.

METHODS

Pregnant people (N = 589) receiving Expect With Me group prenatal care in Nashville, TN and Detroit, MI completed surveys during third trimester of pregnancy and six months postpartum. Linear regression models tested the association between discrimination and depressive symptoms, and the moderating effects of social support and resilience, during pregnancy and postpartum.

RESULTS

The sample was predominantly Black (60.6 %), Hispanic (15.8 %) and publicly insured (71 %). In multivariable analyses, discrimination was positively associated with depressive symptoms during pregnancy (B = 4.44, SE = 0.37, p ≤0.001) and postpartum (B = 3.78, SE = 0.36, p < 0.001). Higher social support and resilience were associated with less depressive symptoms during pregnancy (B = -0.49, SE = 0.08, p < 0.001 and B = -0.67, SE = 0.10, p < 0.001, respectively) and postpartum (B = -0.32, SE = 0.07, p < 0.001 and B = -0.56, SE = 0.08, p < 0.001, respectively). Social support was protective against discrimination (pregnancy interaction B = -0.23, SE = 0.09, p = 0.011; postpartum interaction B = -0.35, SE = 0.07, p < 0.001). There was no interaction between discrimination and resilience at either time.

LIMITATIONS

The study relied on self-reported measures and only included pregnant people who received group prenatal care in two urban regions, limiting generalizability.

CONCLUSIONS

Social support and resilience may protect against perinatal depressive symptoms. Social support may also buffer the adverse effects of discrimination on perinatal depressive symptoms, particularly during the postpartum period.

The Association of Racism and Discrimination in Disparities of Hypertensive Disorders of Pregnancy in the United States: An Analysis of PRAMS Data

BACKGROUND

Hypertensive disorders of pregnancy are a leading cause of maternal mortality. Racial disparities in maternal outcomes such as maternal mortality in the United States (US) are well-documented, but the relationship of racism and/or discrimination with one's risk of developing a hypertension during pregnancy (HDP) is not well-studied.

METHODS

Data from 17 sites that asked questions regarding experiences with racism and/or discrimination during pregnancy via the Pregnancy Risk Assessment Monitoring System (PRAMS) Phase 8 (2016-2020) was used. Logistic regression models were used compare the potential of stress induced HDP from perceived experiences of racism and/or discrimination versus the effect of systemic racism and/or discrimination (in healthcare settings and generally) on racial disparities in HDP diagnosis.

RESULTS

Among 9,907 live births, 18% of participants reported they were diagnosed with hypertension during pregnancy, with non-Hispanic Black individuals having the highest rate (21.8%). Regarding experiences of racism and/or discrimination, 76.4% of participants responded "yes", with all races/ethnicities studied here except non-Hispanic White individuals responding "yes" at rates higher than 89%. Perceived experiences of racism and/or discrimination did not statistically significantly affect one's odds of being diagnosed with HDP (OR = 0.94, CI: 0.74, 1.20). The disparity in odds of having hypertension during pregnancy between Non-Hispanic Black individuals and non-Hispanic White individuals was not statistically significant when perceived experiences of racism and/or discrimination were included in the model.

CONCLUSIONS

Experiences of racism and/or discrimination drive racial disparities in hypertensive disorders in pregnancy.

PUBLIC HEALTH IMPLICATIONS

It is vital to eliminate racist and discriminatory practices and behaviors to reduce maternal morbidity and mortality.

Measures of Racism and Discrimination in Preterm Birth Studies

OBJECTIVE

Preterm birth (any birth at less than 37 weeks of gestation) disproportionally affects Black birthing people and is associated with adverse perinatal and fetal health outcomes. Racism increases the risk of preterm birth, but standardized measurement metrics are elusive. This narrative synthesis examines literature on measures of racial discrimination used in preterm birth research.

DATA SOURCES

Six databases (CINAHL, Cochrane, EMBASE, PubMed [MEDLINE], Scopus, Web of Science) and ClinicalTrials.gov were searched. Search terms were categorized into three groups (racism terms, measurement terms, preterm birth terms) to identify original research articles that explored associations between racism and preterm birth. English-language, original research articles with U.S. populations were included.

METHODS OF STUDY SELECTION

Studies were excluded if conducted in only White populations, if only paternal factors were included, or if only racial differences in preterm birth were described. Articles were independently reviewed by two blinded researchers for inclusion at every stage of screening and data extraction; a third reviewer resolved discrepancies.

TABULATION, INTEGRATION, AND RESULTS

Sixty studies were included in the final analysis. Articles primarily included measures examining interpersonal forms of racism (n=17) through the Experiences of Discrimination and Everyday Discrimination scales, neighborhood composition (n=22) with the Neighborhood Deprivation Index and the Index of Concentration at the Extremes, policy-level racism (n=12) through institutions such as residential racial segregation or policy inequities, or multiple forms (n=9).

CONCLUSION

Among studies, assessment methods and application of constructs varied. This heterogeneity poses significant challenges to understanding associations between racial discrimination and preterm birth and to describing potential etiologic pathways of preterm birth, which ultimately hinders development of effective intervention. Strategies to capture multilevel exposures to racism require the development and expansion of metrics that are culturally inclusive, empirically valid, and reliable among Black pregnant populations.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO, CRD42022327484.

Racial discrimination and adverse pregnancy outcomes: a systematic review and meta-analysis

Introduction

Racial discrimination has been consistently linked to various health outcomes and health disparities, including studies associating racial discrimination with patterns of racial disparities in adverse pregnancy outcomes. To expand our knowledge, this systematic review and meta-analysis assesses all available evidence on the association between self-reported racial discrimination and adverse pregnancy outcomes.

Methods

Eight electronic databases were searched without language or time restrictions, through January 2022. Data were extracted using a pre-piloted extraction tool. Quality assessment was conducted using the Newcastle–Ottawa Scale (NOS), and across all included studies using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. Random effects meta-analyses were performed on preterm birth and small for gestational age. Heterogenicity was assessed using Cochran’s χ² test and I² statistic.

Results

Of 13 597 retrieved records, 24 articles were included. Studies included cohort, case–control and cross-sectional designs and were predominantly conducted in the USA (n=20). Across all outcomes, significant positive associations (between experiencing racial discrimination and an adverse pregnancy event) and non-significant associations (trending towards positive) were reported, with no studies reporting significant negative associations. The overall pooled odds ratio (OR) for preterm birth was 1.40 (95% CI 1.17 to 1.68; 13 studies) and for small for gestational age it was 1.23 (95% CI 0.76 to 1.99; 3 studies). When excluding low-quality studies, the preterm birth OR attenuated to 1.31 (95% CI 1.08 to 1.59; 10 studies). Similar results were obtained across sensitivity and subgroup analyses, indicating a significant positive association.

Conclusion

These results suggest that racial discrimination has adverse impacts on pregnancy outcomes. This is supported by the broader literature on racial discrimination as a risk factor for adverse health outcomes. To further explore this association and underlying mechanisms, including mediating and moderating factors, higher quality evidence from large ethnographically diverse cohorts is needed.