Table 3.
Model derived concentrations of fresh weight and lipid adjusted concentrations of POPs in maternal and cord serum across age group.
| Compound | <20 years | 20–24 years | 25–29 years | ⩾30 years |
N person-trimester (<20, 20–24, 25–29, ⩾30 years)a |
|---|---|---|---|---|---|
| Fresh Weight POP (95% confidence limits) (pg g−1 serum) | |||||
| p′,p′-DDT* | 124 (64, 242) | 98 (55, 178) | 230 (128, 410) | 269 (134, 538) | 38, 70, 65, 38 |
| p′,p′-DDE | 2820 (1410, 5630) | 1730 (936, 3210) | 2430 (1330, 4450) | 4130 (2010, 8490) | 44, 81, 69, 46 |
| HCB* | 20 (15, 29) | 22 (16, 29) | 25 (18, 33) | 37 (26, 52) | 30, 59, 52, 33 |
| PCB-74* | 7.1 (4.7, 10) | 5.1 (3.6, 7.3) | 8.0 (5.7, 11) | 9.7 (6.4, 15) | 35, 65, 60, 37 |
| PCB-99 | 10 (6.9, 16) | 7.6 (5.3, 11) | 9.5 (6.7, 14) | 12 (8.1, 19) | 35, 65, 60, 37 |
| PCB-105 | 9.7 (6.7, 14) | 7.3 (5.3, 10) | 8.5 (6.1, 12) | 10 (7.1, 15) | 35, 65, 60, 37 |
| PCB-118 | 16 (11, 23) | 12 (9.2, 17) | 15 (11, 21) | 20 (14, 21) | 44, 81, 69, 46 |
| PCB-138–158** | 32 (23, 44) | 31 (23, 41) | 37 (28, 49) | 58 (42, 80) | 44, 81, 69, 46 |
| PCB-146* | 7.9 (5.3, 12) | 9.8 (6.9, 14) | 11 (7.4, 15) | 19 (13, 29) | 35, 65, 60, 37 |
| PCB-153** | 41 (28, 59) | 42 (30, 58) | 50 (36, 69) | 97 (66, 143) | 44, 81, 69, 46 |
| PCB-170** | 14 (9.3, 20) | 15 (11, 21) | 20 (14, 28) | 43 (29, 64) | 44, 81, 69, 46 |
| PCB-180** | 28 (20, 40) | 32 (24, 44) | 41 (30, 56) | 92 (64, 134) | 44, 81, 69, 46 |
| PCB-183** | 4.5 (2.9, 7.1) | 5.3 (3.5, 7.8) | 6.9 (4.7, 10) | 16 (10, 25) | 35, 65, 60, 37 |
| PCB-187** | 14 (8.7, 21) | 13 (8.8, 19) | 19 (14, 28) | 44 (28, 69) | 35, 65, 60, 37 |
| PCB-194** | 5.1 (3.5, 7.6) | 6.1 (4.3, 8.7) | 9.6 (6.8, 13) | 22 (15, 33) | 35, 65, 60, 37 |
| PCB-196–203** | 5.5 (3.7, 8.2) | 6.7 (4.7, 9.6) | 9.3 (6.6, 13) | 20 (13, 30) | 35, 65, 60, 37 |
| PCB-199** | 5.2 (3.5, 7.7) | 5.9 (4.1, 8.3) | 8.2 (5.8, 12) | 19 (12, 28) | 35, 65, 60, 37 |
| Lipid adjusted POPs (95% confidence limits) (ng g−1 lipid) | |||||
| p′,p′-DDT | 22 (11, 44) | 19 (10, 34) | 39 (22, 71) | 44 (22, 88) | 38, 70, 65, 38 |
| p′,p′-DDE | 487 (239, 994) | 319 (169, 601) | 413 (223, 769) | 702 (334, 1480) | 44, 81, 69, 46 |
| HCB* | 2.6 (1.9, 3.6) | 2.9 (2.2, 3.9) | 3.1 (2.3, 4.1) | 4.6 (3.3, 6.4) | 30, 59, 52, 33 |
| PCB-74 | 0.90 (0.61, 1.3) | 0.71 (0.50, 1.0) | 1.0 (0.72, 1.4) | 1.2 (0.79, 1.8) | 35, 65, 60, 37 |
| PCB-99 | 1.3 (0.88, 2.0) | 1.0 (0.72, 1.5) | 1.2 (0.85, 1.7) | 1.5 (1.0, 2.3) | 35, 65, 60, 37 |
| PCB-105 | 1.2 (0.84, 1.8) | 1.0 (0.72, 1.5) | 1.1 (0.79, 1.5) | 1.3 (0.88, 1.9) | 35, 65, 60, 37 |
| PCB-118 | 2.8 (2.0, 4.0) | 2.3 (1.7, 3.2) | 2.7 (1.9, 3.6) | 3.4 (2.3, 4.9) | 44, 81, 69, 46 |
| PCB-138–158* | 5.8 (4.0, 8.2) | 5.7 (4.2, 7.9) | 6.5 (4.8, 8.9) | 10 (7.1, 15) | 44, 81, 69, 46 |
| PCB-146* | 1.0 (0.69, 1.5) | 1.3 (0.95, 1.9) | 1.4 (0.97, 1.9) | 2.3 (1.6, 3.5) | 35, 65, 60, 37 |
| PCB-153* | 7.1 (4.9, 10) | 7.8 (5.6, 11) | 8.6 (6.3, 12) | 16 (11, 23) | 44, 81, 69, 46 |
| PCB-170** | 2.4 (1.7, 3.5) | 2.8 (2.0, 3.9) | 3.4 (2.5, 4.7) | 6.9 (4.7, 10) | 44, 81, 69, 46 |
| PCB-180** | 5.0 (3.5, 7.1) | 6.0 (4.4, 8.2) | 7.0 (5.2, 9.5) | 15 (11, 22) | 44, 81, 69, 46 |
| PCB-183** | 0.58 (0.37, 0.90) | 0.71 (0.48, 1.1) | 0.87 (0.59, 1.3) | 1.9 (1.2, 3.0) | 35, 65, 60, 37 |
| PCB-187** | 1.7 (1.2, 2.6) | 1.8 (1.2, 2.5) | 2.5 (1.7, 3.5) | 5.5 (3.6, 8.3) | 35, 65, 60, 37 |
| PCB-194** | 0.66 (0.45, 0.97) | 0.84 (0.59, 1.2) | 1.2 (0.87, 1.7) | 2.7 (1.8, 4.1) | 35, 65, 60, 37 |
| PCB-196–203** | 0.70 (0.47, 1.0) | 0.92 (0.65, 1.3) | 1.2 (0.84, 1.7) | 2.5 (1.6, 3.7) | 35, 65, 60, 37 |
| PCB-199** | 0.66 (0.45, 0.97) | 0.80 (0.57, 1.1) | 1.0 (0.75, 1.5) | 2.3 (1.6, 3.4) | 35, 65, 60, 37 |
*
Significant difference across age group and education status at p < 0.05.
**
Significant difference across age group and education status at p < 0.01.
a
N breaks down according to trimester for each age group as follows: 1st – 15, 25, 22, 14; 2nd – 11, 20, 19, 12; 3rd – 9, 20, 19, 11; and for those with cord blood – 9, 16, 9, 9 except for HCB: 1st – 11, 22, 14, 11; 2nd – 11, 20, 19, 12; 3rd – 8, 18, 19, 10; and p,p′-DDT: 1st – 15, 25, 22, 14; 2nd – 8, 14, 16, 8; 3rd – 6, 15, 14, 9; and cord blood: 9, 16, 13, 9.