Table 3.

Diagnostic sensitivity (D-SN) and specificity (D-SP) of blood lead at a cut point of 3 μg/dL as modeled using clotted erythrocyte fraction with whole blood lead measurements designated as the gold standard for comparison.

		Measured
Modeled	Test Result	≥3 μg/dL	<3 μg/dL	D-SN	D-SP
Acid digestion	≥3 μg/dL	7	0	88%	100%
	<3 μg/dL	1	76
Alkaline dilution	≥3 μg/dL	4	2	89%	97%
	<3 μg/dL	2	74