Table 2 Maternal serum contaminant levels. Serum levels of HCB and PCBs were normalized to total lipid content and reported in ng/g lipids.
Pollutant | LOQ | N (%> LOQ) | Total (N = 161) | LRA (N = 76) | NPCS (N = 85) | Median (IQR) | p value* | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean (SD) | Geom. mean (Min–Max) | Median (IQR) | Mean (SD) | Geom. Mean (Min–Max) | Median (IQR) | Mean (SD) | Geom. Mean (Min–Max) | |||||
Hg (µg/L) | 0.40 | 111 (68.9%) | 0.84 (0.75) | 0.59 (0.2–4.56) | 0.59 (0.2–1.21) | 0.80 (0.75) | 0.55 (0.2–4.56) | 0.57 (0.2–1.17) | 0.88 (0.76) | 0.62 (0.2–3.56) | 0.67 (0.2–1.22) | 0.402 |
HCB (ng/g) | 10.00 (ng/L) | 161 (100%) | 8.47 (6.19) | 7.39 (2.24–57.43) | 7.13 (5.55–9.79) | 7.89 (6.53) | 6.80 (2.24–57.43) | 6.78 (5.07–9.07) | 8.99 (5.85) | 7.97 (2.77–43.03) | 7.18 (6.05–10.43) | 0.041 |
PCB138 (ng/g) | 5.00 (ng/L) | 161 (100%) | 9.88 (8.64) | 8.02 (1.59–84.03) | 7.78 (5.18–11.62) | 8.60 (6.78) | 7.07 (1.59–51.76) | 7.09 (4.76–10.77) | 11.02 (9.93) | 8.97 (2.55–84.03) | 8.97 (6.30–12.64) | 0.022 |
PCB153 (ng/g) | 5.00 (ng/L) | 161 (100%) | 17.48 (15.67) | 13.97 (2.18–140.38) | 13.75 (9.17–21.41) | 15.23 (13.25) | 12.19 (2.18–103.45) | 11.80 (7.89–19.22) | 19.50 (17.39) | 15.77 (4.38–140.38) | 15.28 (10.58–22.53) | 0.016 |
PCB180 (ng/g) | 5.00 (ng/L) | 161 (100%) | 12.90 (12.10) | 9.84 (1.07–91.27) | 9.89 (6.11–16.09) | 11.20 (10.73) | 8.45 (1.07–80.56) | 8.08 (5.08–13.79) | 14.42 (13.08) | 11.28 (2.96–91.27) | 11.33 (7.04–16.98) | 0.021 |
ΣPCBa (ng/g) | – | – | 40.26 (35.98) | 32.02 (4.84–315.67) | 31.52 (23.89–51.92) | 35.03 (30.52) | 27.88 (4.84–235.78) | 26.58 (17.62–44.10) | 44.93 (39.84) | 36.24 (9.88–315.67) | 34.69 (23.89–51.92) | 0.017 |
