#maternal-health #health-disparities #adverse-pregnancy-outcomes #structural-racism #social-determinants

Maternal Health Disparities

Details of the Concept

Maternal health disparities refer to the systematic, avoidable differences in maternal cardiovascular health (CVH), adverse pregnancy outcomes (APOs), and pregnancy-related mortality across racial/ethnic, socioeconomic, and geographic groups. Non-Hispanic Black individuals bear the most severe and well-documented disparate burden. Structural racism — embedded in housing, employment, education, and health care delivery — is recognized as the root cause of these disparities, not biological differences between racial groups (which are social, not biological, constructs).

Key Facts

Scope of Disparities

Maternal mortality ratios (US, 2016): White 13; American Indian/Alaska Native 30; Black American 41 per 100,000 live births — similar to an upper-middle–income country for Black women sources/ht-pregnancy-aha-2022 (rating: high)
Non-Hispanic Black individuals are significantly more likely to experience APOs (HDP, preterm birth, SGA, GDM) and pregnancy-related death than individuals of other racial/ethnic groups sources/prepregnancy-aha-2023 (rating: high)
Non-Hispanic Black females have lower mean LE8 CVH scores and worse values across most CVH metrics, including sleep quality, compared with women of other races/ethnicities sources/prepregnancy-aha-2023 (rating: high)
HDP disproportionately affects Black, American Indian, and Alaska Native women predominantly due to higher CVD risk factor prevalence, but biological factors (genetic variants specific to Black women) may additionally increase preeclampsia susceptibility sources/ht-pregnancy-aha-2022 (rating: high)
Black women with preeclampsia: higher preeclampsia-related severe morbidity and mortality than other racial groups
Hispanic women: pregnancy outcomes tend to be better than Black or White women of similar risk ("Hispanic paradox"), though Puerto Rican women face disproportionate adverse social determinants
Prepregnancy CVH declined 2011–2019 in all subgroups but the gap for non-Hispanic Black individuals vs. others persists
American Indian and Alaska Native individuals experience high maternal morbidity and mortality; data are particularly sparse for these populations
Asian Indian pregnant individuals have higher gestational diabetes risk vs White individuals; disaggregated Asian subgroup data are sparse

Race and ethnicity are social constructs; racial/ethnic CVH differences are attributable to upstream social factors: education, income, housing, built environment, and access to health care sources/prepregnancy-aha-2023 (rating: high)
Structural racism drives disproportionate psychosocial stress burden: repeated discrimination, adverse life experiences, and weathering (cumulative biological stress/"allostatic load")
"Superwoman schema" — cultural coping among Black women requiring strength display in face of adversity — may negatively affect maternal health outcomes
Insurance "churn" (transitions in coverage before/after childbirth) limits preconception and postpartum care access disproportionately in lower-income and underrepresented groups
Unintended pregnancies account for ~50% of all US pregnancies, disproportionately in low-income and underrepresented racial/ethnic groups — limiting reach of individual prepregnancy CVH interventions

Healthcare System Failures

~17% of women with hypertension and ~30% with diabetes were unaware of their diagnoses; awareness gaps are greater in non-Hispanic Black and lower-income women sources/prepregnancy-aha-2023 (rating: high)
Implicit racial bias within the US health care system — management of severe maternal morbidity is consistently worse for Black and AIAN women even after accounting for clinical factors sources/ht-pregnancy-aha-2022 (rating: high)
Fragmented health care before, between (interpregnancy), and after pregnancies is common; reproductive-age individuals often lack continuity of care
Lack of diversity in perinatal health care workforce compounds inequitable care delivery
Federally qualified health centers, Indian Health Service clinics, and community health networks are the proposed settings for equitable trial delivery

Interventions to Address Disparities

Individual: culturally responsive stress reduction and mindfulness-based interventions; conversational digital tools (e.g., Gabby app for high-risk Black individuals); culturally sensitive prepregnancy counseling
Community: civic engagement models; peer leader programs (promotoras, community health workers); place-based programs at hair salons, churches, public housing, college campuses; community advisory boards with key stakeholders
Policy: dismantle structural racism and discriminatory policies; fair housing; equitable employment and education access; continuous uninterrupted health insurance; Black Maternal Health Momnibus legislation framework
Disaggregation of data by race/ethnicity subgroup is essential — "Asian" and "Hispanic" categories mask heterogeneity across national-origin subgroups

Contradictions / Open Questions

Whether addressing individual-level CVH metrics can overcome structural and systemic disparities in APO rates without policy-level change is contested — individual interventions are insufficient without upstream action sources/prepregnancy-aha-2023 (rating: high)
Culturally responsive interventions have limited large RCT evidence; most data from observational or small studies
Optimal strategies for equitable recruitment of individuals without routine health care access (particularly pre-pregnancy) are unknown

Connections

Related to concepts/Prepregnancy-Cardiovascular-Health — disparities manifest in prepregnancy CVH metrics
Related to concepts/Adverse-Pregnancy-Outcomes — APO burden disproportionately affects non-Hispanic Black and other underrepresented women
Related to concepts/Hypertensive-Disorders-of-Pregnancy — HDP most severely affects Black and AIAN women
Related to concepts/Preeclampsia — Black race aHR 1.6 for preeclampsia; higher severity and mortality in Black women
Related to concepts/Lifes-Essential-8 — racial/ethnic disparities visible across all LE8 metrics
Related to concepts/ASCVD-Risk-Assessment — PREVENT equations intended to improve equity (replaced Pooled Cohort Equations)