Table 4 Characteristics of fathers and their children by paternal serum PCB quintile.
| Â | Quintile of serum PCB | ||||
|---|---|---|---|---|---|
| Â | 1 | 2 | 3 | 4 | 5 |
Fathers, n | 16 | 27 | 22 | 22 | 21 |
Children analyzed, n | 30 | 45 | 42 | 47 | 44 |
Serum PCB (ng/mL)- nondetects imputed, geometric mean (range) | 1.0 (0.5–1.3) | 1.4 (1.3–1.8) | 2.4 (1.9–2.9) | 4.4 (2.9–6.1) | 10.7 (6.2–29.1) |
Serum PCB (ng/mL)- nondetects assigned 0, geometric mean (range) | 0.9 (0–1.2) | 1.3 (1.0–1.8) | 2.3 (1.7–2.7) | 4.4 (2.9–6.1) | 10.7 (6.2–29.1) |
Crude sex ratio | 0.500 | 0.467 | 0.548 | 0.532 | 0.524 |
Year of child's birth, mean ± sd | 1987 ± 6 | 1980 ± 6 | 1980 ± 6 | 1980 ± 4 | 1982 ± 6 |
Yrs between delivery and blood analysis, mean ± sd | 4.9 ± 4.9 | 12.2 ± 6.4 | 11.2 ± 5.4 | 11.0 ± 3.7 | 9.6 ± 5.1 |
Father's age (yrs) at delivery, mean ± sd | 31.6 ± 4.0 | 31.4 ± 4.0 | 31.6 ± 5.6 | 33.5 ± 6.4 | 35.9 ± 7.8 |
Mother's age (yrs) at delivery, mean ± sd | 30.2 ± 4.6 | 28.7 ± 3.3 | 29.7 ± 4.7 | 30.6 ± 4.9 | 31.1 ± 4.6 |
Captains cohort, n (%) | 11 (36.7) | 42 (93.3) | 36 (85.7) | 41 (87.2) | 42 (95.5) |
Previous male child, n (%) | 9 (30.0) | 8 (17.8) | 7 (16.7) | 13 (27.7) | 11 (25.0) |
Parity of mother, n (%) | Â | Â | Â | Â | Â |
   1 | 16 (53.3) | 26 (57.8) | 20 (47.6) | 21 (44.7) | 21 (47.7) |
   2 | 10 (33.3) | 16 (35.6) | 14 (33.3) | 16 (34.0) | 18 (40.9) |
   >2 | 4 (13.3) | 3 (6.7) | 8 (19.1) | 10 (21.3) | 5 (11.4) |