Table 4.

Associations between placental PBDEs concentrations (low vs. high) and SGA.

Congener	Girls and boys		Boys		Girls		P for interaction
	Adjusted OR (95% CI)	P	Adjusted OR (95% CI)	P	Adjusted OR (95% CI)	P	Sex *PBDEs
BDE-28	1.025 (0.585–1.796)	0.932	0.981 (0.368–2.620)	0.970	0.979 (0.450–2.127)	0.956	0.417
BDE-47	0.807 (0.448–1.456)	0.477	0.839 (0.311–2.264)	0.729	0.768 (0.351–1.678)	0.508	0.727
BDE-99	1.066 (0.588–1.934)	0.833	0.803 (0.309–2.089)	0.653	1.451 (0.651–3.234)	0.363	0.183
BDE-100	1.015 (0.587–1.754)	0.957	1.308 (0.509–3.362)	0.577	0.822 (0.387–1.748)	0.611	0.490
BDE-153	1.049 (0.637–1.727)	0.851	1.338 (0.635–2.818)	0.444	0.737 (0.347–1.565)	0.427	0.273
BDE-154	0.718 (0.420–1.228)	0.226	0.630 (0.273–1.454)	0.279	0.714 (0.338–1.509)	0.378	0.780
BDE-183	0.871 (0.531–1.427)	0.583	0.842 (0.379–1.871)	0.673	0.974 (0.470–2.021)	0.945	0.071
BDE-209	1.236 (0.807–1.892)	0.329	1.509 (0.782–2.911)	0.220	1.106 (0.596–2.052)	0.749	0.613
ΣPBDEs	2.203 (1.453–3.340)	0.001	2.572 (1.337–4.947)	0.005	2.385 (1.315–4.325)	0.004	0.728

Significant values P ≤ 0.05 are given in bold.

Adjusted for maternal age, pre-gestational body mass index, gestational weight gain, parity, educational level, infant sex (as appropriate), and gestational age.

PBDEs, polybrominated diphenyl ethers. SGA, small for gestational age. OR, odds ratio; CI, confidence interval.