TABLE 3.

Percent of the Population Within Each Variable That Falls Within Each of the 4 Blood Lead Group Categories, NHANES III, 1988–1994

VariableBlood Lead Groupings (μg/dL)
<55–1010–20≥20
Race/ethnicity
 Non-Hispanic black5332122.5
 Mexican-American722350.5
 Non-Hispanic white811540.3
Age
 1–2 y682471
 3–5 y781650.5
Housing
 Pre-19465830111.7
 1946–1973742060.6
 1974 to present86113<0.1
Health insurance
 Medicaid5830112
 Private insurance801540.5
Poverty
 At or below PIR5830111.5
 Above PIR821430.3
Total family income
 <$10 000/y5334121.4
 $10 $10 000–<$130 000/y722260.7
 $30 000–<$50 000/y831430.4
 ≥$50 000/y90820.3
Region
 Northeast5730111.3
 Midwest692181.4
 South781840.2
 West861220.2
  • Totals may not exactly match totals in Table 2 because of rounding.