Table 3.
Maternal and newborn blood As metabolites and maternal urinary As metabolites for participants with total blood As > 10 μg/L (n = 30).
| Variable | Mean ± SD | Range |
|---|---|---|
| Cord blood As metabolites | ||
| %DMA | 43.1 ± 8.9 | 28.9–68.7 |
| %MMA | 31.1 ± 6.3 | 18.5–42.7 |
| %As+3 | 12.8 ± 2.7 | 4.3–16.8 |
| %As+5 | 12.9 ± 6.5 | 4.2–31.1 |
| Sum of As metabolites (μg/L) | 24.0 ± 15.3 | 5.4–83.5 |
| Total blood As (μg/L) | 23.1 ± 11.2 | 10.0–74.6 |
| Mother’s blood As metabolites | ||
| %DMA | 43.5 ± 8.0 | 32.7–66.9 |
| %MMA | 30.1 ± 5.7 | 18.4–39.2 |
| %As+3 | 13.0 ± 2.9 | 4.5–18.0 |
| %As+5 | 13.4 ± 6.3 | 2.4–34.5 |
| Sum of As metabolitesa (μg/L) | 20.9 ± 13.1 | 4.8–67.9 |
| Total blood As (μg/L) | 20.0 ± 12.1 | 10.9–76.6 |
| Mother’s urine As metabolites | ||
| %DMA | 86.6 ± 5.5 | 74.8–97.3 |
| %MMA | 7.6 ± 4.1 | 1.5–17.7 |
| %InAs | 5.9 ± 2.4 | 1.2–11.0 |
| Sum of urinary As metabolitesa (μg/g creatinine) | 717.5 ± 687.1 | 43.4–2934.6 |
| Total urinary As (μg/g creatinine) | 726.0 ± 715.7 | 39.4–3084.2 |
a
Reported sum values have been corrected for percent recovery, as described in “Methods.” Urine and blood As metabolites were measured by HPLC ICP-MS-DRC, whereas total urinary As and total blood As were measured by GFAA and ICP-MS-DRC, respectively.