Maternal BMI-Increasing Genetic Risk Score and Fetal Weights among Diverse US Ethnic Groups

Objective Associations between maternal genetic risk for obesity and fetal weight were examined at the end of the first (13 weeks 6 days), second (27 weeks 6 days), and third (40 weeks 0 days) trimesters of pregnancy among four race/ethnic groups in the US. Methods For 603 white, 591 black, 535 Hispanic, and 216 Asian women, maternal genetic risk score (GRS) was calculated as the sum of 189 BMI‐increasing alleles and was categorized into high or...