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) |