Characteristic | Mean (SD) |
---|---|
Gestational age (wks) | 39.4 (1.5) |
Maternal age at enrollment (yrs) | 31.8 (4.8) |
Parity | 0.93 (1.1) |
Pre-pregnancy BMI (kg/m2) | 26.3 (5.9) |
Ever smoked during pregnancy | 18 (5.8) |
Infant birth weight (kg) | 3.4 (0.5) |
Infant sex: | |
Male | 163 (52.4)a |
Female | 148 (47.6)a |
Total urinary arsenic (U-As, μg/L) | 3.7 (2.2–6.3)b |