Race-ethnic disparities in birth outcomes are well established, and new research suggests that there may also be important sexual identity disparities in birth weight and preterm birth. This study uses the National Longitudinal Study of Adolescent to Adult Health and is the first to examine disparities in birth outcomes at the intersection of race-ethnicity and sexual identity. We use ordinary least sqaures and logistic regression models with live births (n = 10,318) as the unit of analysis clustered on mother ID (n = 5,105), allowing us to adjust for preconception and pregnancy-specific perinatal risk factors as well as neighborhood characteristics. Results show a striking reversal in the effect of lesbian or bisexual identity on birth outcomes across race-ethnicities: For white women, a bisexual or lesbian identity is associated with better birth outcomes than their white heterosexual counterparts, but for Black and Latina women, it is associated with worse birth outcomes than their heterosexual peers.

出生结果方面的种族差异是众所周知的，新的研究表明，出生体重和早产方面也可能存在重要的性别认同差异。这项研究利用了国家青少年至成人健康纵向研究，首次研究了种族、族裔和性别认同交叉点上出生结果的差异。我们使用普通最小二乘法和逻辑回归模型，以活产 (n = 10,318) 作为分析单位，以母亲 ID (n = 5,105) 为聚类依据，从而使我们能够针对孕前和妊娠特定的围产期风险因素以及邻里特征进行调整。结果显示，女同性恋或双性恋身份对不同种族的出生结果的影响发生了惊人的逆转：对于白人女性来说，双性恋或女同性恋身份与白人异性恋女性相比，与更好的出生结果相关，但对于黑人和拉丁裔女性来说，它与更好的出生结果相关。与异性恋同龄人相比，出生结果更差。