Sample Characteristics | PCBtotal | PCBmono | PCBdi | PCBtri | PCB1b | PCB2b | PCB3 |
---|---|---|---|---|---|---|---|
Total sample | 3.30 ± 1.53 | 0.81 ± 0.52 | 2.23 ± 1.05 | 0.27 ± 0.15 | 0.17 ± 0.09 | 0.82 ± 0.44 | 1.51 ± 0.66 |
Maternal race | Â | Â | Â | Â | Â | Â | Â |
 White§ | 3.21 ± 1.34 | 0.80 ± 0.46 | 2.15 ± 0.90 | 0.26 ± 0.14 | 0.16 ± 0.08 | 0.78 ± 0.37 | 1.47 ± 0.58 |
 Black | 3.32 ± 1.79 | 0.74 ± 0.41 | 2.31 ± 1.35 | 0.30 ± 0.17 | 0.18 ± 0.11 | 0.89 ± 0.57 | 1.51 ± 0.82 |
 Other | 4.02 ± 2.07* | 1.06 ± 0.92* | 2.64 ± 1.30* | 0.27 ± 0.16 | 0.21 ± 0.11* | 0.99 ± 0.53* | 1.76 ± 0.81 |
Sex of infant | Â | Â | Â | Â | Â | Â | Â |
 Male§ | 3.26 ± 1.58 | 0.79 ± 0.58 | 2.21 ± 1.03 | 0.26 ± 0.17 | 0.16 ± 0.09 | 0.82 ± 0.42 | 1.49 ± 0.65 |
 Female | 3.35 ± 1.49 | 0.83 ± 0.45* | 2.24 ± 1.07 | 0.27 ± 0.13 | 0.17 ± 0.09 | 0.82 ± 0.45 | 1.52 ± 0.66 |
Maternal smoking status | Â | Â | Â | Â | Â | Â | Â |
 Never§ | 3.33 ± 1.57 | 0.82 ± 0.45 | 2.25 ± 1.13 | 0.27 ± 0.13 | 0.17 ± 0.09 | 0.84 ± 0.48 | 1.51 ± 0.70 |
 Current | 3.28 ± 1.29 | 0.79 ± 0.48 | 2.22 ± 0.82 | 0.27 ± 0.13 | 0.16 ± 0.08 | 0.80 ± 0.33 | 1.53 ± 0.55 |
 Former | 3.26 ± 1.85 | 0.83 ± 0.75 | 2.17 ± 1.17 | 0.27 ± 0.22 | 0.16 ± 0.10 | 0.80 ± 0.49 | 1.47 ± 0.74 |
Maternal occupation | Â | Â | Â | Â | Â | Â | Â |
 Employed | 3.25 ± 1.43 | 0.79 ± 0.46 | 2.20 ± 0.96 | 0.26 ± 0.13 | 0.16 ± 0.09 | 0.81 ± 0.39 | 1.49 ± 0.62 |
 Housewife/Part-time§ | 3.32 ± 1.59 | 0.82 ± 0.55 | 2.23 ± 1.10 | 0.27 ± 0.16 | 0.17 ± 0.09 | 0.83 ± 0.47 | 1.51 ± 0.68 |
Maternal education†|  |  |  |  |  |  |  |
 No HS diploma | 3.16 ± 1.47 | 0.76 ± 0.40 | 2.14 ± 1.03 | 0.26 ± 0.16 | 0.17 ± 0.10 | 0.80 ± 0.42 | 1.43 ± 0.67 |
 HS diploma only§ | 3.10 ± 1.26 | 0.76 ± 0.37 | 2.10 ± 0.91 | 0.25 ± 0.13 | 0.15 ± 0.09 | 0.77 ± 0.37 | 1.42 ± 0.57 |
 HS + some college | 3.34 ± 1.62 | 0.79 ± 0.45 | 2.28 ± 1.17 | 0.28 ± 0.17 | 0.17 ± 0.09 | 0.85 ± 0.50 | 1.54 ± 0.72 |
 College graduate | 3.64 ± 1.77 | 0.96 ± 0.80* | 2.39 ± 1.05* | 0.29 ± 0.13 | 0.17 ± 0.08 | 0.88 ± 0.44 | 1.63 ± 0.66* |
Maternal age categories | Â | Â | Â | Â | Â | Â | Â |
 15-24 | 3.03 ± 1.32 | 0.74 ± 0.38 | 2.07 ± 0.97 | 0.23 ± 0.12 | 0.14 ± 0.09 | 0.76 ± 0.42 | 1.39 ± 0.59 |
 25-29§ | 3.34 ± 1.56 | 0.79 ± 0.44 | 2.28 ± 1.09 | 0.27 ± 0.14 | 0.17 ± 0.09 | 0.84 ± 0.45 | 1.54 ± 0.70 |
 30-34 | 3.42 ± 1.65 | 0.84 ± 0.50 | 2.31 ± 1.18 | 0.27 ± 0.12 | 0.17 ± 0.08 | 0.86 ± 0.51 | 1.55 ± 0.72 |
 ≥35 | 3.48 ± 1.59 | 0.90 ± 0.75 | 2.26 ± 0.91* | 0.32 ± 0.20 | 0.19 ± 0.10 | 0.82 ± 0.35 | 1.56 ± 0.60 |
Maternal BMI categories | Â | Â | Â | Â | Â | Â | Â |
 Underweight | 3.17 ± 1.24 | 0.68 ± 0.32 | 2.21 ± 0.88 | 0.28 ± 0.15 | 0.17 ± 0.09 | 0.78 ± 0.34 | 1.54 ± 0.56 |
 Normal§ | 3.42 ± 1.62 | 0.84 ± 0.57 | 2.30 ± 1.10 | 0.28 ± 0.16 | 0.17 ± 0.09 | 0.85 ± 0.46 | 1.56 ± 0.69 |
 Over-weight | 3.02 ± 1.35 | 0.73 ± 0.36 | 2.05 ± 0.99 | 0.24 ± 0.12 | 0.15 ± 0.08 | 0.76 ± 0.41 | 1.38 ± 0.62 |
 Obese | 3.01 ± 1.42 | 0.85 ± 0.45 | 1.93 ± 0.91 | 0.23 ± 0.14 | 0.15 ± 0.09 | 0.72 ± 0.39 | 1.29 ± 0.59* |
Parity | Â | Â | Â | Â | Â | Â | Â |
 0§ | 3.21 ± 1.49 | 0.76 ± 0.41 | 2.20 ± 1.06 | 0.25 ± 0.14 | 0.16 ± 0.09 | 0.81 ± 0.45 | 1.48 ± 0.65 |
 1 | 3.22 ± 1.58 | 0.83 ± 0.69 | 2.13 ± 0.96 | 0.25 ± 0.11 | 0.16 ± 0.07 | 0.77 ± 0.39 | 1.45 ± 0.61 |
 2 | 3.46 ± 1.33 | 0.83 ± 0.43 | 2.34 ± 0.89* | 0.30 ± 0.13* | 0.18 ± 0.09 | 0.86 ± 0.36 | 1.59 ± 0.58 |
 ≥3 | 3.36 ± 1.66 | 0.83 ± 0.47 | 2.26 ± 1.21 | 0.28 ± 0.19 | 0.17 ± 0.10 | 0.85 ± 0.51 | 1.52 ± 0.76 |