TABLE 2—
Ward-Based Comparison of WLL Percentages, Pre- and Post-Switch EBLL Percentages, and Predicted Post BLL and Change in Predicted BLL by Ordinary Kriging Geostatistical Analysis: Flint, MI, 2013 and 2015
| Ward | WLL % > 15 ppb | Pre EBLL% | Post EBLL% | Predicted Post BLLa | Change in Predicted BLL From Pre to Post, µg/dL |
| 1 | 10 | 0.0 | 2.8 | 1.4 | −0.10 |
| 2 | 25 | 0.0 | 1.4 | 0.7 | 0.19 |
| 3 | 18 | 1.0 | 4.5 | 2.9 | 0.05 |
| 4 | 6 | 3.1 | 1.7 | 2.4 | −0.15 |
| 5b | 32 | 4.9 | 15.7 | 10.3 | 0.51 |
| 6b | 28 | 2.2 | 9.3 | 5.5 | 0.27 |
| 7b | 28 | 5.4 | 5.9 | 5.7 | -0.26 |
| 8 | 20 | 2.7 | 1.4 | 2.0 | 0.01 |
| 9 | 20 | 3.4 | 1.6 | 2.5 | −0.43 |
Note. BLL = blood lead level; EBLL = elevated blood lead level; WLL = water lead level.
a
Ordinary Kriging geostatistical analysis.
b
Indicates wards defined as high WLL risk in this study.