2022 年发表在《美国妇产科杂志》上的研究表明，美国孕产妇死亡率保持稳定，而不是上升，但种族差异依然存在。 2022 study published in American Journal of Obstetrics and Gynecology suggests stable, not rising, US maternal mortality rates with continued racial disparities.
《美国妇产科杂志》发表的一项新研究对疾病预防控制中心报告的美国孕产妇死亡率居高不下且不断上升提出了质疑，表明实际孕产妇死亡率可能比之前认为的更低、更稳定。 A new study published in the American Journal of Obstetrics and Gynecology challenges the high and rising US maternal mortality rates reported by the CDC, suggesting that the actual maternal death rate may be lower and more stable than previously thought. 该研究的作者采用了“基于定义的方法”，发现1999-2002年和2018-2021年间孕产妇死亡率保持稳定，而不是CDC报告的上升趋势。 The study's authors used a "definition-based approach" and found that maternal mortality rates between 1999-2002 and 2018-2021 were stable, rather than the upward trends reported by the CDC. 研究还发现，种族差异仍然存在，黑人孕妇的死亡可能性仍然是白人患者的三倍。 The study also found that racial disparities persist, with Black pregnant patients still three times more likely to die than White patients.