Table IV.
The Distributions of Heavy Metal in the Maternal and Cord Blood (ng/g)
| Heavy metal | LOD* | Mothers
|
Newborns
|
p Value | ||||
|---|---|---|---|---|---|---|---|---|
| Median | 25th | 75th | Median | 25th | 75th | |||
| Se | 1.0 | 140.8 | 114.8 | 157.6 | 131.1 | 113.9 | 157.9 | 0.171 |
| Pb | 0.3 | 23.1 | 14.8 | 33.2 | 22.0 | 14.7 | 33.7 | 0.428 |
| As | 0.5 | 11.0 | 9.4 | 13.7 | 10.4 | 8.1 | 12.6 | 0.006 |
| Cd | 0.03 | 0.9 | 0.7 | 1.2 | 0.6 | 0.4 | 1.0 | < 0.0001 |
| Tl | 0.02 | 0.2 | 0.07 | 0.2 | 0.04 | <LOD | 0.1 | < 0.0001 |
| Ni | 0.5 | 1.4 | <LOD | 2.1 | 0.9 | <LOD | 2.4 | 0.925 |
| V | 0.1 | <LOD | <LOD | 0.2 | 0.2 | <LOD | 0.4 | — |
| Co | 1.1 | <LOD | <LOD | 1.1 | <LOD | <LOD | 1.3 | — |
| Hg | 3.7 | <LOD | <LOD | <LOD | <LOD | <LOD | <LOD | — |
*
LOD = limit of detection.