African immigrants' favorable preterm birth rates challenge genetic etiology of the Black-White disparity in preterm birth

被引:1
作者
Braveman, Paula [1 ]
Heck, Katherine [1 ]
Dominguez, Tyan Parker [2 ]
Marchi, Kristen [1 ]
Burke, Wylie [3 ]
Holm, Nicole [1 ]
机构
[1] Univ Calif San Francisco, Dept Family & Community Med, San Francisco, CA 94110 USA
[2] Univ Southern Calif, Suzanne Dworak Peck Sch Social Work, Los Angeles, CA USA
[3] Univ Washington, Dept Bioeth & Humanities, Washington, DC USA
关键词
preterm birth; Black-White disparity in preterm birth; African immigrant; immigrant health; health disparities; US-BORN BLACK; SOCIOECONOMIC-STATUS; RACE; HEALTH; WEIGHT; RACISM; RISK; PREGNANCY; AMERICAN; OUTCOMES;
D O I
10.3389/fpubh.2023.1321331
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
BackgroundWe examined over a million California birth records for 2010 through 2021 to investigate whether disparities in preterm birth (PTB) by nativity and race support the widely held but hitherto unsubstantiated belief that genetic differences explain the persistent Black-White disparity in PTB.MethodsWe examined PTB rates and risk ratios among African-, Caribbean-, and U.S.-born Black women compared to U.S.-born White women. Multivariate analyses adjusted for maternal age, education, number of live births, delivery payer, trimester of prenatal care initiation, pre-pregnancy BMI, smoking, and prevalence of poverty in a woman's residence census tract; and for paternal education.ResultsIn adjusted analyses, African-born Black women's PTB rates were no different from those of U.S.-born White women.DiscussionThe results add to prior evidence making a genetic etiology for the racial disparity in PTB unlikely. If genetic differences tied to "race" explained the Black-White disparity in PTB among U.S.-born women, the African immigrants in this study would have had higher rates of PTB, not the lower rates observed. Multiple explanations for the observed patterns and their implications are discussed. Failure to distinguish causes of PTB from causes of the racial disparity in PTB have likely contributed to erroneous attribution of the racial disparity to genetic differences. Based on the literature, unmeasured experiences of racism, including racism-related stress and adverse environmental exposures, are plausible explanations for the PTB disparity between Black and White U.S.-born women. The favorable birth outcomes of African-born Black immigrants may reflect less exposure to racism during sensitive life periods, e.g., childhood, when they were in African countries, where Black people are in the racial majority.
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页数:8
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