| 252 Male newborns | 237 Female newborns | Total newborns | |||
---|---|---|---|---|---|---|
Standardized regression coefficient, β | p value | Standardized regression coefficient, β | p value | Standardized regression coefficient, β | p value | |
Total PCBs in cord blood | −0.171 | 0.004 | −0.166 | 0.009 | −0.161 | < 0.001 |
Total mercury in cord blood | −0.120 | 0.042 | −0.042 | 0.499 | −0.078 | 0.061 |
Lead in cord blood | 0.023 | 0.692 | −0.039 | 0.513 | −0.011 | 0.784 |
Possible confounders | ||||||
 Gestational age | 0.397 | < 0.001 | 0.373 | < 0.001 | 0.383 | < 0.001 |
 Parity | 0.075 | 0.201 | 0.102 | 0.116 | 0.093 | 0.030 |
 Body mass index before pregnancy | 0.143 | 0.012 | 0.227 | < 0.001 | 0.180 | < 0.001 |
 Smoking during pregnancy | −0.066 | 0.237 | 0.080 | 0.185 | 0.006 | 0.889 |
 Drinking during pregnancy | 0.001 | 0.986 | 0.019 | 0.756 | 0.010 | 0.812 |
 Fish/seafood intake | 0.080 | 0.168 | 0.067 | 0.288 | 0.069 | 0.099 |
 Child sex | - | - | - | - | 0.159 | < 0.001 |
Contribution rate, R 2 | 0.229 | < 0.001 | 0.204 | < 0.001 | 0.239 | < 0.001 |