Table 2.
Geometric mean 3-PBA concentrations (μg/L) based on outcomes for study participants (n = 1,861).
| Neurodevelopmental outcome | n (%) | 3-PBA concentration (μg/L) [GM (95% CI)] | p-Valuea |
|---|---|---|---|
| LD | |||
| Yes | 223 (12.7) | 0.42 (0.31, 0.57) | 0.007 |
| No | 1,636 (87.3) | 0.30 (0.25, 0.37) | |
| ADHD | |||
| Yes | 148 (10.0) | 0.35 (0.25, 0.49) | 0.38 |
| No | 1,708 (90.0) | 0.31 (0.26, 0.38) | |
| LD + ADHD | |||
| Yes | 78 (5.4) | 0.52 (0.32, 0.83) | 0.02 |
| No | 1,776 (94.6) | 0.31 (0.25, 0.38) | |
| Sample includes children with 3-PBA and creatinine data. Percentages, GMs, and 95% CIs are weighted to reflect survey sampling. Study participants with missing data: for LD (n = 2), ADHD (n = 5), and LD + ADHD (n = 7). ap-Value comparing GMs between groups. | |||