Table 6. Mean (SD) Level of sICAM-1 (µmol/L) According to Predicted ABO Alleles.

		First Allele
		A1	A2	O	B
Second Allele	A1	326 (71) N = 268	332 (71) N = 185	338 (77) N = 1656	352 (89) N = 182
	A2	-	346 (55) N = 33	352 (80) N = 537	366 (91) N = 56
	O	-	-	358 (81) N = 2859	356 (80) N = 592
	B	-	-	-	342 (79) N = 51

WGHS-1 and WGHS-2 were combined for this analysis. Mean (SD) values were derived from unadjusted sICAM-1 concentrations.