Table 4.
Prenatal blood lead |
Prenatal blood cadmium |
Prenatal blood mercury |
||||||
---|---|---|---|---|---|---|---|---|
OR (95% CI) | p | OR (95% CI) | p | OR (95% CI) | p | |||
Balance | Heel to toe: ref. 15 steps (vs 1–14) | Q4a | 0.98 (0.73, 1.31) | 0.870 | 0.80 (0.58, 1.11) | 0.181 | 0.97 (0.72, 1.30) | 0.823 |
Ball skills | Beanbag: ref. 7–10 throws (vs 1–3) | Q4a | 1.07 (0.71, 1.63) | 0.669 | 1.19 (0.73, 1.93) | 0.486 | 0.86 (0.56, 1.31) | 0.481 |
Manual dexterity | Threading lace: ref. 9–21 s (vs 22–105) | Q4a | 1.01 (0.75, 1.35) | 0.744 | 0.89 (0.65, 1.22) | 0.478 | 1.24 (0.92, 1.67) | 0.160 |
Peg board | ||||||||
Preferred hand: ref. 15–22 s (vs 23–46) | Q4a | 1.23 (0.92, 1.66) | 0.169 | 0.90 (0.65, 1.25) | 0.520 | 1.16 (0.86, 1.57) | 0.333 | |
Non-preferred hand: ref. 15–25 (vs 25–62 s) | Q4a | 0.99 (0.73, 1.32) | 0.917 | 1.05 (0.76, 1.44) | 0.786 | 0.84 (0.63, 1.13) | 0.256 |
Reference category lead <5.00 μg/dl, cadmium <0.25 μg/l, mercury <2.00 μg/l.
Participants with poor attention excluded.
Adjusted for: sex, maternal education, smoking in pregnancy, alcohol in pregnancy, maternal age and parity.
Reference category: Q1.