Table 3.

Prevalence of Elevated Lead Levels by Age and Immunization Status

Age
Group
No. (%)PbB ≥10 μg/dLRR (95% CI)
UTDUnderimmunized
1 y61  (6.3)25  (9.1)1.35  (0.95–1.91)
2 y120  (15.4)84  (20.4)1.24  (1.03–1.50)
3 y111  (14.7)56  (16.7)1.10  (0.87–1.40)
4 y78  (12.6)37  (13.2)1.04  (0.78–1.38)