Research Article
Do US Ambient Air Lead Levels Have a Significant Impact on Childhood Blood Lead Levels: Results of a National Study
Table 3
Results of univariate negative binomial regressions predicting number of children with BLL ≥ 10 μg/dL by county.
| Univariate negative binomial regression | | Coef. | 95% CI |
| NATA02 | 66.897* | (35.0818, 98.7209) | NATA05 | 99.736* | (56.7037, 142.768) | % pre50 housing | | (0.0320, 0.0385) | Urban (ref) | — | | Suburban | −0.689* | (−1.0317, −0.3466) | Rural | −0.803* | (−1.1508, −0.4551) | % Black | −0.003 | (−0.0063, 0.00029) | Targeted/mandatory | 0.033 | (−0.1035, 0.1697) | % below poverty | −0.019* | (−0.0268, −0.0098) |
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