Exposure | Study groups | Â | Â |
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Serumb
| Infections | White blood cells | Lymphocyte subsets |
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CB 28+52+101 | 4 (3–427) | 4 (3–427) | 4 (3–19) |
CB-153 | 60 (23–179) | 57 (23–158) | 59 (23–158) |
Di-ortho PCB | 131 (44–362) | 127 (44–342) | 129 (44–342) |
Mono-ortho PCB TEQ | 4 (1–20) | 4 (1–11) | 4 (1–9) |
p,p'-DDE | 88 (21–622) | 85 (24–622) | 83 (29–622) |
Mother's milk exposurec
| Â | Â | Â |
CB 28+52+101 | 8 (0–155) | 8 (0–76) | 9 (0–39) |
CB-153 | 187 (0–853) | 174 (0–396) | 186 (0–396) |
Di-ortho PCB | 364 (0–1666) | 351 (0–830) | 372 (0–830) |
Mono-ortho PCB TEQ | 11 (0–54) | 11 (0–26) | 11 (0–26) |
p,p'-DDE | 311 (0–2199) | 289 (0–2199) | 306 (0–2199) |
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aMedian (range). Di-ortho PCB = CB-138, CB-153, CB-180; Mono-ortho PCB TEQ = CB-105, CB-118, CB-156, CB-167 [32]. The study group "Infections" consists of all study participants (prenatal exposure N = 190; postnatal exposure N = 175), the "White blood cells" group is a subgroup of infants among the study participants which had their WBC counts analyzed (N = 86), and within this subgroup lymphocyte subsets were analyzed in the "Lymphocyte" group composed of infants with enough blood left after WBC count analysis (N = 52).
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bng/g lipid. Mono-ortho PCBs: pg TEQ/g lipid [32]. Serum sampled week 32–34.
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cng/g fresh weight*days. Mono-ortho PCBs: pg TEQ/g fresh weight*days. Calculated as organochlorine concentration in mother's milk on a fresh weight basis*days of nursing*(%of full nursing/100).