Table 1

HLA antigen frequencies in 24 Irish patients with Behçet’s disease

Antigen		Antigen frequency			χ²		Relative risk		Exact p value
		Patients (%)		Controls (%)
		(A,B: n=24, DR: n=21)		(A,B: n=96 DR: n=84)
A1	58.33		45.83		0.8	1.5	0.386
A2	62.50		59.38		0.0	1.1	0.963
A3	16.67		35.42		2.3	0.4	0.128
A9	4.17		3.13		0.2	1.3	1.000
A10	8.33		4.17		0.1	1.7	0.345
A11	20.83		8.33		2.0	2.2	0.133
A19	4.17		6.25		0.0	0.7	1.000
A24	0.00		14.58		2.7	0.0	0.070
A25	0.00		3.13		0.0	0.0	1.000
A26	0.00		2.08		0.0	0.0	1.000
A28	4.17		3.13		0.2	1.3	1.000
A29	8.33		7.29		0.1	1.1	1.000
A31	4.17		1.04		0.0	2.6	0.361
A32	4.17		6.25		0.0	0.7	1.000
A33	4.17		0.00		0.6	5.2	0.200
B5	0.00		3.13		0.0	0.0	1.000
B7	20.83		37.50		7.0	3.7	0.008
B8	37.50		52.08		1.1	0.6	0.294
B12	4.17		0.00		0.6	5.2	0.200
B13	0.00		1.04		0.6	0.0	1.000
B14	16.67		10.42		0.1	1.3	0.517
B15	0.00		2.08		0.0	0.0	1.000
B17	8.33		1.04		1.7	3.5	0.105
B18	0.00		2.08		0.0	0.0	1.000
B22	0.00		1.04		0.6	0.0	1.000
B27	4.17		6.25		0.0	1.3	0.660
B35	4.17		4.17		0.3	1.0	1.000
B37	0.00		5.21		0.3	0.0	0.582
B39	4.17		3.13		0.2	1.3	1.000
B40	8.33		4.17		0.1	1.7	0.345
B44	50.00		34.38		1.4	1.7	0.239
B45	0.00		1.04		0.6	0.0	1.000
B49	0.00		1.04		0.6	0.0	1.000
B50	0.00		1.04		0.6	0.0	1.000
B51	25.00		0.00		20.3	6.3	0.00004
B53	0.00		1.04		0.6	0.0	1.000
B55	0.00		1.04		0.6	0.0	1.000
B57	12.50		5.21		0.7	2.0	0.197
B60	4.17		7.29		0.0	0.6	1.000
B62	0.00		10.42		1.5	0.0	0.209
DR1	23.81		13.10		0.8	1.7	0.305
DR2	33.33		11.90		4.2	2.6	0.041
DR3	38.10		47.62		0.3	0.7	0.590
DR4	19.05		40.48		2.5	0.4	0.116
DR6	14.29		0.00		7.7	5.7	0.007
DR7	28.57		32.14		0.0	0.9	0.958
DR8	0.00		1.19		0.6	0.0	1.000
DR9	0.00		1.19		0.6	0.0	1.000
DR10	0.00		2.38		0.0	0.0	1.000
DR11	4.76		8.33		0.0	0.6	1.000
DR13	19.05		13.10		0.1	1.4	0.494
DR14	9.52		5.95		0.0	1.5	0.625
DR15	4.76		20.24		1.9	0.2	0.114