Table 4.
Regression coefficients (β, mean ± standard error) for associations between maternal body burdens of PBDEs and third trimester concentrations of thyroid hormones
| Body burdensa | Total T3 | Free T4 | TSH |
|---|---|---|---|
| Unadjusted model | |||
| tetra-pentaPBDE | 0.03 ± 0.05 | 0.22 ± 0.11 | −0.13 ± 0.09 |
| BDE-153 | −0.06 ± 0.06 | 0.08 ± 0.16 | 0.04 ± 0.12 |
| Multivariate model b | |||
| tetra-pentaPBDE | −0.005 ± 0.04 | 0.19 ± 0.11 | −0.06 ± 0.08 |
| BDE-153 | 0.03 ± 0.06 | −0.02 ± 0.16 | −0.03 ± 0.13 |
aLn-transformed mother’s milk concentrations of tetra-pentaPBDE (sum of BDE-47, BDE-99 and BDE-100) and BDE-153 (N = 166)
bAssociations adjusted for maternal age, pre-pregnancy BMI, smoking during pregnancy, season of sampling and weight gain during pregnancy. *p ≤ 0.05