Table 5.
Relationships between newborn head circumference and the PCDD/DF isomers and TEQ levels in breast milk after adjustment for confounding factors by multiple linear regression analysis
| PCDDs/DFs in milk | Beta coefficient (SE) | Standardized coefficient | P value |
|---|---|---|---|
| 2,3,7,8-TCDD | −0.891 (0.352) | −0.220 | 0.014 |
| 1,2,3,7,8-PeCDD | −0.736 (0.520) | −0.128 | 0.161 |
| 1,2,3,4,7,8-HxCDD | −0.115 (0.442) | −0.024 | 0.796 |
| 1,2,3,6,7,8-HxCDD | −0.606 (0.505) | −0.112 | 0.235 |
| 1,2,3,7,8,9-HxCDD | −0.144 (0.379) | −0.380 | 0.705 |
| 1,2,3,4,6,7,8-HpCDD | −0.773 (0.466) | −0.148 | 0.102 |
| OCDD | −0.325 (0.544) | −0.055 | 0.552 |
| 2,3,7,8-TCDF | −0.061 (0.480) | −0.011 | 0.899 |
| 1,2,3,7,8-PeCDF | −1.149 (1.467) | −0.071 | 0.436 |
| 2,3,4,7,8-PeCDF | −0.754 (0.519) | −0.101 | 0.273 |
| 1,2,3,4,7,8-HxCDF | −0.606 (0.486) | −0.112 | 0.216 |
| 1,2,3,6,7,8-HxCDF | −0.393 (0.510) | −0.071 | 0.444 |
| 2,3,4,6,7,8-HxCDF | −0.166 (0.392) | −0.039 | 0.673 |
| 1,2,3,7,8,9-HxCDF | 2.128 (3.307) | 0.065 | 0.486 |
| 1,2,3,4,6,7,8-HpCDF | −0.234 (0.273) | −0.079 | 0.393 |
| 1,2,3,4,7,8,9-HpCDF | 0.892 (2.141) | 0.039 | 0.678 |
| OCDF | −0.002 (0.096) | −0.002 | 0.983 |
| PCDDs-TEQ | −0.861 (0.520) | −0.150 | 0.102 |
| PCDFs-TEQ | −0.623 (0.534) | −0.106 | 0.247 |
| PCDDs/DFs-TEQ | −0.812 (0.538) | −0.136 | 0.136 |
Covariates in multiple regression analysis included mother’s age and height, newborn gender and weight, and gestational weeks