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Maternal health

Maternal Mortality: Preventable Risk, Unequal Burden and System Accountability

12 min readEvidence synthesis
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The question in focus

A global evidence review of maternal mortality, preventable causes, disparities and the health-system actions needed before, during and after birth.

Evidence at a glance

260,000

estimated maternal deaths worldwide in 2023

WHO and partner agencies estimate that more than 700 women died each day, about one every two minutes, and just over 90% of deaths occurred in low- and lower-middle-income countries. [1][2]

Trends in maternal mortality 2000 to 2023

The global burden remains unacceptable

WHO estimates that about 260,000 women died during or following pregnancy and childbirth in 2023, more than 700 each day. The global maternal mortality ratio fell by about 40% between 2000 and 2023, yet progress slowed and just over 90% of deaths occurred in low- and lower-middle-income countries. [1][2]

A maternal death is commonly defined for international measurement as death during pregnancy or within 42 days of its end from causes related to or aggravated by pregnancy or its management, excluding accidental or incidental causes. Pregnancy-related surveillance in some countries extends to one year and includes a broader set of deaths. Measures should not be compared without checking definitions and data quality. [1][3]

  • Use the correct numerator, time window and definition.
  • Report uncertainty around modeled estimates.
  • Avoid rankings that ignore differences in registration and case ascertainment.

Clinical causes meet health-system failures

Major direct causes include hemorrhage, hypertensive disorders, infection, complications of delivery and unsafe abortion, while indirect conditions such as cardiovascular disease can be aggravated by pregnancy. WHO emphasizes that most maternal deaths are preventable with timely care by skilled professionals before, during and after childbirth. [1]

Clinical knowledge is necessary but insufficient when transport is unavailable, blood products are delayed, warning signs are dismissed, referral is slow, records do not travel or cost blocks care. Prevention therefore combines contraception and preconception care, quality antenatal services, skilled birth attendance, emergency obstetric care and continued postpartum follow-up.

  • Maintain reliable supplies, blood systems and emergency transport.
  • Use standardized pathways for hemorrhage, hypertension, sepsis and thromboembolism.
  • Escalate deterioration through trained teams with clear authority.

Preventability review turns tragedy into action

US maternal mortality review committees examine clinical and nonclinical records to determine pregnancy relation, cause, preventability, contributing factors and recommendations. CDC reported that more than 80% of pregnancy-related deaths reviewed from 2017 to 2019 were preventable. [3][4] This percentage is specific to those jurisdictions and methods, not a global estimate.

Review should be multidisciplinary, protected from blame and connected to implementation. Recommendations need an owner, deadline, resources and measurement. Reviewing deaths without reviewing severe maternal morbidity and near misses misses more frequent signals of system weakness. Patient and family narratives can reveal dismissal, racism, communication gaps and barriers that the medical record does not capture.

  • Review deaths and severe morbidity with standardized methods.
  • Track recommendations to completion.
  • Include community and patient perspectives safely.
  • Share de-identified learning across facilities.

Inequity is not a patient characteristic

Maternal mortality differs sharply by income, geography, race, ethnicity, migration status and access to quality care. WHO estimates that around 87% of maternal deaths in 2023 occurred in sub-Saharan Africa and southern Asia. [1] These patterns reflect resources, conflict, transport, coverage, quality and structural conditions rather than an inherent biological hierarchy.

Equity work should analyze where the pathway fails: late or absent antenatal access, facility quality, respectful care, referral delay, postpartum coverage and response to symptoms. Stratified data need enough detail to guide action but should be interpreted with community context and privacy safeguards. Training on bias alone will not repair unsafe staffing or inaccessible services.

  • Measure time to assessment and treatment by relevant population group.
  • Provide language access and respectful maternity care.
  • Invest in the facilities and referral networks serving highest-risk communities.
  • Avoid adjusting away structural factors that are targets for improvement.

Safety continues through the postpartum year

WHO antenatal recommendations center a positive pregnancy experience and include evidence-based assessment, prevention and contact. [5] WHO postnatal guidance extends support to maternal and newborn recovery, with repeated contacts in the first days and weeks. [6] National systems may use a broader one-year surveillance window because cardiovascular and mental health risks continue after the traditional postnatal period.

A high-reliability pathway records recent pregnancy in acute care, gives clear warning-sign instructions, follows hypertension and diabetes, screens mental health with treatment access and transfers complications into long-term primary care. Progress should be reported through mortality, severe morbidity, case fatality, treatment timeliness, patient experience and equity rather than a single annual rate.

  • Identify recent pregnancy at every emergency encounter.
  • Connect maternity, emergency, mental health and primary care records.
  • Give families a clear route for urgent symptoms.
  • Publish improvement measures with transparent definitions.

What the evidence cannot yet answer

  • Maternal death definitions and surveillance windows differ across datasets.
  • Modeled global estimates carry uncertainty where civil registration is incomplete.
  • Preventability judgments depend on available records and review methods.
  • National averages can conceal large local and population disparities.

Questions worth taking into care

  1. Which definition and time window does this maternal mortality measure use?
  2. Are major emergency pathways staffed, supplied and audited?
  3. Does every death and severe near miss lead to accountable action?
  4. Where do disparities emerge along the care pathway?
  5. Does postpartum follow-up connect acute risk with long-term prevention?

Source record

Evidence used in this review

Sources were selected for clinical authority, methodological relevance and traceability. Links open the original guidance, public-health record or research publication.

  1. [1]
    Maternal mortality

    World Health Organization · 2025

  2. [2]
    Trends in maternal mortality 2000 to 2023

    WHO, UNICEF, UNFPA, World Bank Group and UNDESA · 2025

  3. [3]
    Pregnancy-Related Deaths: Data from Maternal Mortality Review Committees

    US Centers for Disease Control and Prevention · 2026

  4. [4]
    About Maternal Mortality Review Committees

    US Centers for Disease Control and Prevention · 2024

  5. [5]
  6. [6]
Editorial standard

This evidence synthesis is for general information. It does not diagnose a condition or replace care from a qualified health professional. Treatment choices depend on individual history, examination, local guidance and informed preference. Emergency or rapidly worsening symptoms need urgent local medical assessment.