All children (N=500) Subcohort B (N=233) Subcohort A (N=262) Spearman´s rho P-value Spearman´s rho P-value Spearman´s rho P-value Methylmercury   -0.061 0.174   -0.094 0.151 -0.013 0.838 HCB -0.064 0.151   -0.206** 0.002   0.077 0.214 b-HCH -0.020 0.651   -0.101 0.125   0.038 0.543 Musk xylene -0.019 0.664   -0.077 0.244   0.028 0.657 PCB 118 -0.033 0.457   -0.176** 0.007   0.104 0.094 PCB 153 -0.036 0.428   -0.150* 0.022   0.093 0.135 PCB 105 -0.079 0.077   -0.220** 0.001   0.064 0.303 PCB 138 -0.018 0.682   -0.143* 0.030   0.114 0.066 PCB 156 -0.006 0.894   -0.107 0.103   0.118 0.057 PCB 180 -0.030 0.497   -0.150* 0.022   0.109 0.078 SPCB -0.028 0.535   -0.151* 0.022   0.107 0.083 Sum of MO- PCB^& -0.035 0.432   -0.173** 0.008   0.106 0.088 4,4'-DDE -0.027 0.545   -0.158* 0.016   0.099 0.111 4,4'-DDT -0.082 0.066   -0.210** 0.001   0.061 0.323 Trans- nonachlor -0.023 0.603   -0.170** 0.010   0.124* 0.046 *   : Significant correlation (2-tailed significance) ** : Highly significant correlation (2-tailed significance) &  : Sum of three mono-ortho PCBs (105+118+156)