Candidate gene associations with percentages of different urinary arsenic subtypes in male and female placenta. The percentages of iAs, MMAV, and DMAV in maternal urine were computed by dividing their urinary levels by total U-As levels. Multivariable linear regression analyses were then performed to determine the association of the percentage of arsenic subtype with developmental/stemness gene expression, after cohort stratification by infant sex (females; sheet 1, males; sheet 2). Analyses were adjusted for maternal age only. *P < 0.05, **P < 0.01. (XLSX 61 kb
