Table 2.
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) | ||||||
Unadjusted | 1.01 (0.94, 1.07) | 0.849 | 0.81 (0.67, 0.97) | 0.025 | 1.04 (0.95, 1.14) | 0.345 | |
Adjusted | 0.98 (0.92, 1.05) | 0.609 | 0.70 (0.52, 0.94) | 0.019 | 1.00 (0.91, 1.10) | 0.966 | |
Ball skills | Beanbag: ref 7–10 throws (vs 1–3) | ||||||
Unadjusted | 0.98 (0.89, 1.07) | 0.577 | 0.99 (0.76, 1.29) | 0.926 | 0.93 (0.82, 1.04) | 0.209 | |
Adjusted | 0.98 (0.90, 1.08) | 0.743 | 0.88 (0.60, 1.31) | 0.536 | 0.93 (0.82, 1.06) | 0.830 | |
Manual dexterity | Threading lace: ref 9–21 s (vs 22–105) | ||||||
Unadjusted | 1.01 (0.95, 1.08) | 0.762 | 0.97 (0.80, 1.16) | 0.714 | 0.99 (0.91, 1.09) | 0.892 | |
Adjusted | 1.01 (0.96, 1.10) | 0.496 | 0.94 (0.70, 1.25) | 0.646 | 1.01 (0.92, 1.11) | 0.894 | |
Peg board | |||||||
Preferred hand: ref 15–22 s (vs 23–46) | |||||||
Unadjusted | 1.03 (0.97, 1.10) | 0.377 | 1.07 (0.89, 1.28) | 0.493 | 1.03 (0.94, 1.12) | 0.585 | |
Adjusted | 1.04 (0.97, 1.12) | 0.248 | 1.00 (0.75, 1.33) | 0.972 | 1.05 (0.95, 1.15) | 0.349 | |
Non-preferred hand: ref 15–25 s (vs 25–62) | |||||||
Unadjusted | 1.02 (0.95, 1.09) | 0.589 | 1.03 (0.86, 1.24) | 0.761 | 0.93 (0.85, 1.02) | 0.101 | |
Adjusted | 1.04 (0.97, 1.11) | 0.276 | 0.98 (0.74, 1.31) | 0.911 | 0.94 (0.86, 1.03) | 0.195 |
Participants with poor attention to task excluded.
Adjusted for: sex, maternal education, smoking in pregnancy, alcohol in pregnancy, maternal age and parity.