Table 2.
Lipid adjusted concentrations and congener distributions of PBDE in maternal serum (n = 316)
| Congener | N | % > LOD | Median LOD ng/g serum lipid)a | Median (ng/g serum lipid)b | Range (ng/g serum lipid) | Congener distribution(median %)c |
|---|---|---|---|---|---|---|
| PBDE-17 |
298 |
6.7 |
0.50 |
0.35 |
ND-1.8 |
1.69 |
| PBDE-28 |
316 |
45.6 |
0.50 |
0.42 |
ND-63.7 |
2.03 |
| PBDE-47 |
316 |
99.1 |
1.20 |
7.90 |
ND-1600 |
38.15 |
| PBDE-66 |
316 |
3.2 |
0.50 |
0.35 |
ND-2.5 |
1.69 |
| PBDE-85 |
316 |
24.7 |
0.70 |
0.35 |
ND-38.3 |
1.69 |
| PBDE-99 |
316 |
83.5 |
0.50 |
1.60 |
ND-377 |
7.73 |
| PBDE-100 |
316 |
91.1 |
0.50 |
1.70 |
ND-301 |
8.21 |
| PBDE-153 |
315 |
98.4 |
0.50 |
2.95 |
ND-206 |
14.24 |
| PBDE-154 |
316 |
14.6 |
0.50 |
0.35 |
ND-34.1 |
1.69 |
| PBDE-183 |
316 |
15.5 |
0.50 |
0.35 |
ND-2.9 |
1.69 |
| PBDE-209 |
311 |
19.3 |
5.40 |
4.04 |
ND-38.2 |
19.51 |
| PBB-153 | 314 | 38.9 | 0.50 | 0.35 | ND-84.3 | 1.69 |
ND = non detect. The concentration of PBDE measured was less than the limit of detection (LOD).
aMedian LOD. LODs differed between individuals due to the amount of sample collected provided for analysis, sample quantity ranged from 0.374-2.002 g, mean ± se = 1.898 ± 0.009.
bFor samples with PBDE concentrations < LOD, the value of LOD/sqrt 2 was substituted.
cPBDE congener distribution (median %) calculated as the percent contribution of the sum of 12 congeners to the total sum of median congener concentrations (ΣPBDE).