Massachusetts witnessed significant racial and ethnic disparities in severe maternal morbidity (SMM) between 2012 and 2021, particularly in the context of birth methods following a prior cesarean delivery. This comprehensive study examined data from over 72,000 individuals, shedding light on how different racial and ethnic groups experience varying maternal health outcomes based on their chosen birth mode.
Study Design and Demographics
Utilizing linked birth certificates and hospital discharge records, researchers focused on individuals with one previous cesarean delivery. The cohort comprised 72,836 persons, with 56.8% identifying as White, 20.1% as Latinx, and 11.0% as Black. Additionally, 34.5% of the participants were born outside the United States. The study categorized birth modes into vaginal birth after cesarean (VBAC), planned repeat cesarean, and unplanned repeat cesarean deliveries.
Impact of Birth Mode on Maternal Morbidity
Black individuals faced a 60% higher likelihood of experiencing SMM compared to their White counterparts. Unplanned repeat cesareans were associated with a threefold increase in SMM risk, while planned repeat cesareans also elevated the risk by 57% compared to VBAC. Notably, planned repeat cesareans increased the probability of SMM by 0.56 percentage points among Black birthing people and by 0.46 percentage points among Latinx individuals, with no significant difference observed in White individuals.
Inference Insights:
- Black and Latinx populations are at heightened risk of SMM when opting for cesarean birth modes.
- Planned repeat cesareans particularly increase SMM likelihood in marginalized groups.
- Being born outside the US may contribute to disparities in maternal health outcomes.
- Birth mode decisions have differential impacts based on racial and ethnic backgrounds.
The analysis underscores that the mode of birth post-cesarean significantly influences the rates of severe maternal morbidity, with marked disparities across racial and ethnic lines. These findings highlight the urgent need for targeted healthcare strategies to address and mitigate these risks.
Enhancing maternal health equity requires implementing interventions that prioritize quality care for marginalized racial and ethnic groups. Healthcare providers should advocate for informed decision-making regarding birth modes, taking into account both medical histories and sociodemographic factors. By fostering personalized and equitable care practices, it is possible to reduce the incidence of SMM and promote better health outcomes for all birthing individuals.

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