Table 1.
Comparison of the parent BHSS database with the subset of records selected for reanalysis (historical data).
| City | Parent data set | Selected subset | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Minimum | Maximum | Average | SD | Geometric mean | Geometric SD | Minimum | Maximum | Average | SD | Geometric mean | Geometric SD | |
| Kellogg | Parent data set n = 3,054 | Selected subset n = 118 | ||||||||||
| Age (years) | 0 | 9 | 5.1 | 2.7 | — | — | 1 | 9 | 5.5 | 2.6 | — | — |
| Blood lead (μg/dL) | 1 | 54 | 6.4 | 4.7 | 5.1 | 2.0 | 2 | 41 | 7.6 | 5.7 | 6.3 | 1.8 |
| Soil lead (mg/kg) | 100 | 13,400 | 954 | 1,625 | 274 | 4.4 | 100 | 6,930 | 1,407 | 1,849 | 435 | 5.2 |
| Dust lead (mg/kg) | 32 | 52,700 | 1,213 | 2,839 | 733 | 2.4 | 88 | 5,530 | 1,373 | 1,093 | 985 | 2.3 |
| Page | Parent data set n = 161 | Selected subset n = 15 | ||||||||||
| Age (years) | 0 | 9 | 5.1 | 2.6 | — | — | 1 | 9 | 4.3 | 2.8 | — | — |
| Blood lead (μg/dL) | 1 | 26 | 7.0 | 4.7 | 5.7 | 1.9 | 3 | 12 | 5.6 | 2.4 | 5.2 | 1.5 |
| Soil lead (mg/kg) | 53 | 3,480 | 557 | 668 | 287 | 3.2 | 100 | 1,670 | 541 | 420 | 387 | 2.5 |
| Dust lead (mg/kg) | 69 | 2,070 | 678 | 496 | 478 | 2.6 | 86 | 1,680 | 706 | 567 | 467 | 2.9 |
| Pinehurst | Parent data set n = 1,369 | Selected subset n = 117 | ||||||||||
| Age (years) | 0 | 9 | 5.1 | 2.6 | — | — | 1 | 9 | 5.2 | 2.4 | — | — |
| Blood lead (μg/dL) | 1 | 26 | 4.6 | 3.1 | 3.8 | 1.9 | 1 | 17 | 4.3 | 2.6 | 3.7 | 1.7 |
| Soil lead (mg/kg) | 31 | 3,060 | 438 | 424 | 312 | 2.3 | 37 | 1,700 | 469 | 356 | 369 | 2.0 |
| Dust lead (mg/kg) | 22 | 15,000 | 639 | 1,053 | 417 | 2.4 | 45 | 15,000 | 625 | 1,427 | 383 | 2.3 |
| Smelterville | Parent data set n = 642 | Selected subset n = 57 | ||||||||||
| Age (years) | 0 | 9 | 4.9 | 2.7 | — | — | 1 | 9 | 4.5 | 2.6 | — | — |
| Blood lead (μg/dL) | 1 | 55 | 7.0 | 5.4 | 5.6 | 2.0 | 2 | 30 | 7.5 | 4.9 | 6.4 | 1.7 |
| Soil lead (mg/kg) | 100 | 10,700 | 953 | 1,921 | 245 | 4.3 | 100 | 8,170 | 1,037 | 1,821 | 242 | 4.8 |
| Dust lead (mg/kg) | 54 | 11,300 | 1,127 | 1,257 | 757 | 2.5 | 393 | 4,210 | 1,387 | 807 | 1,190 | 1.8 |
| Wardner | Parent data set n = 173 | Selected subset n = 5 | ||||||||||
| Age (years) | 0 | 9 | 5.2 | 2.7 | — | — | 1 | 8 | 4.8 | 3.1 | — | — |
| Blood lead (μg/dL) | 1 | 20 | 6.6 | 3.8 | 5.5 | 1.9 | 2 | 8 | 4.6 | 2.2 | 4.2 | 1.6 |
| Soil lead (mg/kg) | 100 | 34,800 | 759 | 2,925 | 224 | 3.5 | 100 | 13,200 | 3,104 | 5,705 | 484 | 9.6 |
| Dust lead (mg/kg) | 130 | 6,000 | 1,005 | 1,112 | 700 | 2.3 | 307 | 2,220 | 1,147 | 697 | 959 | 2.1 |