{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T03:30:27Z","timestamp":1790998227588,"version":"4.1.0"},"reference-count":25,"publisher":"American Medical Association (AMA)","issue":"12","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Netw Open"],"abstract":"Importance<\/jats:title>With disparate Black maternal health outcomes in the US and a steadily expanding non\u2013US-born Black population, it is beneficial to investigate Black maternal health outcomes by country of origin.<\/jats:p><\/jats:sec>Objective<\/jats:title>To compare the prevalence of maternal morbidity and infant birth outcomes between US-born and non\u2013US-born Black populations in the US.<\/jats:p><\/jats:sec>Design, Setting, and Participants<\/jats:title>This cross-sectional study included all registered hospital births in the US from the 2021 National Vital Statistics Systems (NVSS) Natality Data. Eligible patients identified as Black, excluding those who were younger than 15 years, gave birth to twins or multiple infants, gave birth outside of a hospital, or were missing data for maternal morbidity, nativity, or study covariates.<\/jats:p><\/jats:sec>Exposures<\/jats:title>Maternal birthplace, characterized as born within the US or born outside of the US.<\/jats:p><\/jats:sec>Main Outcomes and Measures<\/jats:title>Five maternal morbidities (ie, maternal transfusion, perineal laceration, ruptured uterus, unplanned hysterectomy, admission to intensive care unit) and two birth outcomes (low birthweight, preterm birth). Logistic regression analyses were utilized to calculate the associations of maternal morbidity and adverse birth outcome with maternal birthplace.<\/jats:p><\/jats:sec>Results<\/jats:title>Of a total 3\u202f669\u202f928 registered births in the US in 2021, 499\u202f409 births to mothers who identified as Black were included in analysis; the majority of individuals were aged 20 to 24 years (117\u202f173 [23.5%]), 25 to 29 years (142\u202f890 [28.6%]), or 30 to 34 years (123\u202f485 [24.7%]). Maternal birthplace in the US was associated with a decreased odds of experiencing any maternal morbidity (4411 of 403\u202f822 births [1.1%]) compared with Black people born outside of the US (1593 of 95\u202f587 births [1.7%]) (aOR, 0.67; 95% CI, 0.62-0.71). US-born Black people were significantly less likely to experience 3 of 5 maternal morbidities compared with non\u2013US-born Black people: maternal transfusion (aOR, 0.87; 95% CI, 0.78-0.97), perineal laceration (aOR, 0.43; 95% CI, 0.39-0.48), and ruptured uterus (aOR, 0.63; 95% CI, 0.45-0.89). US-born Black people also had a nonsignificant decrease in odds for unplanned hysterectomy (aOR, 0.77; 95% CI, 0.56-1.05) and admission to intensive care unit (aOR, 0.92; 95% CI, 0.79-1.07). However, they were at increased odds of experiencing key adverse infant health outcomes, including low birthweight (aOR, 1.62; 95% CI, 1.58-1.67) and preterm birth (aOR, 1.51; 95% CI, 1.47-1.55).<\/jats:p><\/jats:sec>Conclusions and Relevance<\/jats:title>In this cross-sectional study, significant differences were observed in odds of maternal morbidity and birth outcomes by maternal birthplace within the Black pregnant population in the US. This suggests the need for increased assessment of nativity in Black maternal health research and specific strategies to reduce morbidity for non\u2013US-born populations.<\/jats:p><\/jats:sec>","DOI":"10.1001\/jamanetworkopen.2024.51693","type":"journal-article","created":{"date-parts":[[2024,12,26]],"date-time":"2024-12-26T16:32:02Z","timestamp":1735230722000},"page":"e2451693","source":"Crossref","is-referenced-by-count":6,"title":["Maternal and Infant Health Outcomes in US-Born and Non\u2013US-Born Black Pregnant People in the US"],"prefix":"10.1001","volume":"7","author":[{"given":"Mariah","family":"Jiles","sequence":"first","affiliation":[{"name":"Center of Excellence in Maternal, Child and Adolescent Health, University of California, Berkeley"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ndola","family":"Prata","sequence":"additional","affiliation":[{"name":"Center of Excellence in Maternal, Child and Adolescent Health, University of California, 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Working Together to Reduce Black Maternal Mortality. CDC Women\u2019s Health webpage. April 8, 2024. Accessed September 18, 2024. https:\/\/www.cdc.gov\/womens-health\/features\/maternal-mortality.html?CDC_AAref_Val"},{"key":"zoi241434r2","unstructured":"US Centers for Disease Control and Prevention. Severe Maternal Morbidity. CDC Maternal Infant Health webpage. May 15, 2024. Accessed September 18, 2024. https:\/\/www.cdc.gov\/maternal-infant-health\/php\/severe-maternal-morbidity\/index.html"},{"key":"zoi241434r3","doi-asserted-by":"crossref","unstructured":"Hoyert? DL. Maternal Mortality Rates in the United States, 2019. National Center for Health Statistics Health E-Stats. April 2021. Accessed September 18, 2024. https:\/\/www.cdc.gov\/nchs\/data\/hestat\/maternal-mortality-2021\/E-Stat-Maternal-Mortality-Rates-H.pdf","DOI":"10.15620\/cdc:103855"},{"key":"zoi241434r4","unstructured":"Declercq? E, Zephyrin? LC. Severe Maternal Morbidity in the United States: A Primer. 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