Table 3.
Descriptive statistics of prenatal and postnatal BPA concentrationsa among 87 boys and 111 girls included in the analyses.
| Percentile | Geometric mean | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Time of BPA collection | Minimum | 5th | 25th | 50th | 75th | 95th | Maximum | Mean | ||
| Prenatal BPA | ||||||||||
| No specific gravity adjustment (μg/L) | ||||||||||
| All children | < LOD | 0.40 | 1.10 | 1.80 | 3.10 | 8.50 | 30.00 | 2.68 | 1.80 | |
| Girls | < LOD | < LOD | 1.00 | 1.90 | 3.20 | 9.20 | 30.00 | 3.01 | 1.84 | |
| Boys | < LOD | 0.40 | 1.20 | 1.75 | 3.00 | 5.80 | 8.50 | 2.24 | 1.75 | |
| Specific gravity adjusted (μg/L) | ||||||||||
| All children | 0.24 | 0.66 | 1.23 | 1.96 | 3.04 | 7.16 | 38.53 | 2.76 | 1.96 | |
| Girls | 0.24 | 0.24 | 1.17 | 2.02 | 3.20 | 7.65 | 31.87 | 2.87 | 2.03 | |
| Boys | 0.28 | 0.72 | 1.23 | 1.82 | 2.73 | 5.67 | 38.53 | 2.61 | 1.88 | |
| 3-year BPA | ||||||||||
| No specific gravity adjustment (μg/L) | ||||||||||
| All children | < LOD | 0.60 | 1.70 | 3.55 | 6.40 | 27.60 | 90.80 | 6.86 | 3.56 | |
| Girls | < LOD | < LOD | 1.40 | 3.10 | 8.00 | 31.20 | 62.80 | 6.97 | 3.45 | |
| Boys | < LOD | 0.70 | 2.35 | 3.95 | 6.15 | 19.80 | 90.80 | 6.80 | 3.71 | |
| Specific gravity adjusted (μg/L) | ||||||||||
| All children | 0.42 | 1.11 | 2.24 | 3.19 | 7.08 | 20.10 | 73.50 | 6.17 | 3.94 | |
| Girls | 0.42 | 0.42 | 2.21 | 3.22 | 7.77 | 20.74 | 42.65 | 6.31 | 4.01 | |
| Boys | 0.68 | 1.08 | 2.30 | 3.19 | 6.37 | 14.96 | 73.50 | 6.05 | 3.86 | |
| aPrenatal BPA concentrations were analyzed in maternal urine samples taken during the third trimester. Postnatal BPA concentrations were analyzed in child urine samples taken when the child was 3 years of age. | ||||||||||