Table 3. Optical Densities for IgG... | American Society of Hematology

Table 3.

Optical Densities for IgG Subclass Assays for Control, HIT, and HITT Patients

	IgG₁	IgG₂	IgG₃	IgG₄
Controls (n = 8)	−0.002 ± 0.005	0.040 ± 0.057	−0.006 ± 0.006	0.005 ± 0.006
HIT (n = 12)	0.706 ± 0.611	0.714 ± 0.735	0.455 ± 0.624	0.008 ± 0.013
HITT (n = 22)	0.685 ± 0.608	0.494 ± 0.805	0.05 ± 0.244	0.004 ± 0.008

	IgG₁	IgG₂	IgG₃	IgG₄
Controls (n = 8)	−0.002 ± 0.005	0.040 ± 0.057	−0.006 ± 0.006	0.005 ± 0.006
HIT (n = 12)	0.706 ± 0.611	0.714 ± 0.735	0.455 ± 0.624	0.008 ± 0.013
HITT (n = 22)	0.685 ± 0.608	0.494 ± 0.805	0.05 ± 0.244	0.004 ± 0.008

The mean optical densities at 405 nm (OD₄₀₅) and SD are shown for each subclass assay. OD₄₀₅ values greater than mean + 3 SD are considered positive.