Table 1 Study cohort demographic information
Characteristic | Mean (SD) | Number (%) | Median (interquartile range) |
|---|---|---|---|
Number of pregnant women | 133 | - | |
Gestational age (wks) | 39.5 (1.6) | - | - |
Maternal age at enrollment (yrs) | 31.1 (4.6) | - | - |
Parity | 1.1 (1.1) | - | - |
Pre-pregnancy BMI (kg/m2) | 24.9 (4.7) | - | - |
Smoking status during pregnancy: | |||
Never | - | 97 (72.9) | - |
Former | - | 13 (9.8) | - |
Current | - | 5 (3.8) | - |
Unknown | - | 18 (13.5) | - |
Number of infants | - | 133 | - |
Infant birth weight (kg) | 3.4 (0.4) | - | - |
Infant sex: | |||
Male | - | 65 (48.9) | - |
Female | - | 68 (51.1) | - |
Household water arsenic (μg/L) | - | - | 0.36 (0.02 - 3.55) |
Total urinary arsenic (U-As, μg/L) | - | - | 4.4 (1.8 - 11.9) |