Table 4

Concordance between anti-β2 glycoprotein 1 (anti-β2gp) and non-quantitative total anticardiolipin (ACL) assays by clinical group for pooled data

Patient group	Normal	Atheroma	Infection	Connective tissue disease no thrombosis	Total no APS	Primary APS	Secondary APS	Total APS
The infection column refers to infection with human immunodeficiency virus, syphilis, hepatitis C, rickettsial infection.APS, antiphospholipid syndrome.
ACL positive alone	0	38	74	59	171	16	21	37
ACL/anti-β2gp1 positive	0	2	11	33	49	67	50	117
Anti-β2gp1 positive alone	3	0	7	3	13	3	4	7
Total samples in group	100	109	239	213	661	139	145	284