There are noted birth defects prevalence differences between race/ethnicity groups. For instance, non‐Hispanic (NH) Black mothers are more likely to have an infant with encephalocele, although less likely to have an infant with anotia/microtia compared to NH Whites. When stratifying by nativity and years lived within the United States, additional variations become apparent.

中文翻译：

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基于人群的病例对照研究中非西班牙裔黑人的文化适应和选择性出生缺陷

种族/族裔群体之间存在明显的出生缺陷患病率差异。例如，非西班牙裔 (NH) 黑人母亲更有可能生出患有脑膨出的婴儿，尽管与 NH 白人相比，生出无脑畸形/小耳畸形的婴儿的可能性较小。当按出生和在美国居住的年数进行分层时，额外的变化变得明显。