Table 2.
Urinary arsenic metabolites of study participants in Sirajdikhan and Pabna at visits 1 and 2
| Sirajdikhan | Pabna | All mothers | ||||
|---|---|---|---|---|---|---|
| Visit 1 | Visit 2 | Visit 1 | Visit 2 | Visit 1 | Visit 2 | |
| N | 879 | 783 | 727 | 662 | 1606 | 1445 |
| iAsIII%a | 0 (0, 12.6) | 0 (0, 9.9) | 3.1 (0, 17.8) | 0 (0, 11.5) | 0 (0, 15.9) | 0 (0, 10.6) |
| iAsV% | 1.1 (0, 20.9) | 1.8 (0, 26.2) | 3.8 (0, 18.6) | 4 (0, 20) | 2.1 (0, 19.6) | 2.6 (0, 23.6) |
| iAs% | 5.7 (0, 24.1) | 5.3 (0, 27.7) | 11.2 (1.4, 24) | 8 (0, 22.1) | 8.5 (0, 24) | 6.6 (0, 25.4) |
| MMA% | 3.5 (0, 13.4) | 4.3 (0, 11.8) | 6 (0.6, 13.1) | 5.6 (0.1, 11.3) | 4.9 (0, 13.2) | 4.8 (0, 11.6) |
| DMA% | 89.5 (66.9, 100) | 89.6 (66, 99.9) | 82 (66.2, 95.6) | 85.8 (68.9, 98) | 85.7 (66.6, 100) | 87.9 (67.3, 99.5) |
| iAsIII, μg/L | 0 (0, 8.8) | 0 (0, 7.7) | 1.7 (0, 57.9) | 0 (0, 27.8) | 0 (0, 28.9) | 0 (0, 16.7) |
| iAsV, μg/L | 0.2 (0, 8.8) | 0.5 (0, 12) | 2.5 (0, 36) | 2.1 (0, 51.9) | 0.6 (0, 21.8) | 0.9 (0, 22.5) |
| iAs, μg/L | 0.7 (0, 17.8) | 1.1 (0, 17.9) | 7.5 (0.2, 81.8) | 4.9 (0, 75.9) | 2.5 (0, 52.2) | 2.4 (0, 39.1) |
| MMA, μg/L | 0.5 (0, 10.6) | 1.1 (0, 11) | 4.1 (0.1, 42.5) | 3.4 (0, 35.1) | 1.3 (0, 30.3) | 1.7 (0, 21.5) |
| DMA, μg/L | 10.9 (1.9, 121) | 20.5 (3.6, 128) | 54.2 (8.8, 431) | 50.2 (7.4, 371) | 22.5 (2.6, 297) | 30 (4.5, 259) |
| U-As | 12.2 (2, 147) | 23.7 (4.3, 151) | 69.9 (9.7, 531) | 63.2 (8, 480) | 26.5 (2.9, 376) | 35.2 (5.1, 325) |
| U-creatinine, mg/dL | 23.1 (6, 113) | 34.6 (8.7, 126) | 41.4 (11.6, 181) | 35 (9.7, 117) | 30.3 (7.5, 159) | 34.9 (9.1, 123) |
| Adjusted iAsIII b | 0 (0, 14.9) | 0 (0, 10.9) | 3.5 (0, 67.6) | 0 (0, 50.5) | 0 (0, 48.3) | 0 (0, 27.7) |
| Adjusted iAsV | 0.6 (0, 33.4) | 1.3 (0, 36.5) | 5.5 (0, 98.1) | 6.1 (0, 123) | 1.8 (0, 67.5) | 2.5 (0, 77.4) |
| Adjusted iAs | 2.7 (0, 51.6) | 3.1 (0, 48.9) | 15.2 (0.8, 142) | 12.6 (0, 156) | 6.5 (0, 98.9) | 5.7 (0, 104) |
| Adjusted MMA | 1.7 (0, 36) | 2.6 (0, 24.4) | 8.2 (0.4, 76.6) | 8.3 (0.1, 72.5) | 3.8 (0, 57.9) | 4.3 (0, 52.5) |
| Adjusted DMA | 43.2 (13.8, 369) | 52.8 (21.2, 276) | 114 (30.1, 577) | 126 (39, 776) | 65.1 (17.5, 530) | 76.4 (24.8, 605) |
| Adjusted U-As | 48.6 (16.2, 470) | 61.6 (24.6, 338) | 139 (37.4, 784) | 154 (43.6, 972) | 77.5 (19.6, 677) | 90.4 (28.8, 770) |
a Proportions of urinary arsenic metabolites are presented as median and 5th–95th percentiles
b Concentrations of urinary arsenic metabolites are creatinine-adjusted (μg/g-creatinine) and presented as median and 5th–95th percentiles