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Table 4 Regression coefficients (β, mean ± standard error) for associations between maternal body burdens of PBDEs and third trimester concentrations of thyroid hormones

From: Maternal body burdens of PCDD/Fs and PBDEs are associated with maternal serum levels of thyroid hormones in early pregnancy: a cross-sectional study

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

  1. aLn-transformed mother’s milk concentrations of tetra-pentaPBDE (sum of BDE-47, BDE-99 and BDE-100) and BDE-153 (N = 166)
  2. bAssociations adjusted for maternal age, pre-pregnancy BMI, smoking during pregnancy, season of sampling and weight gain during pregnancy. *p ≤ 0.05