Child blood lead level at 30 months and measures of balance at 7 and 10 years of age in ALSPAC
| Age (years) | OR of balance dysfunction (95% CI) | p Value | n | ||
|---|---|---|---|---|---|
| Heel-to-toe test | 7 | Unadjusted | 0.98 (0.92 to 1.04) | 0.618 | 428 |
| Adjusted* | 0.98 (0.92 to 1.05) | 0.778 | 354 | ||
| Dynamic balance | 10 | Unadjusted | 1.03 (0.96 to 1.11) | 0.422 | 410 |
| Adjusted† | 1.01 (0.93 to 1.09) | 0.814 | 363 | ||
| Static balance | 10 | Unadjusted | 1.04 (0.96 to 1.12) | 0.345 | 402 |
| Adjusted† | 1.03 (0.94 to 1.12) | 0.540 | 357 | ||
Logistic regression analysis comparing results for children with blood lead level ≥5 vs <5 µg/dL.
*Adjusted for: sex, passive smoking at 77 months old (weekdays and weekends), and Ca and Fe intakes at 7 years.
†Adjusted for: sex, passive smoking at 103 months old (weekdays and weekends), and Ca and Fe intakes at 10 years.
ALSPAC, Avon Longitudinal Study of Parents and Children.