Table 1. Distribution of the five SNPs studied in ERAP1 according to a recessive model of the minor allele.

SNP	MA	TEST	Patients	Controls	p	OR
rs27044	G	GG/CC+CG
		Whole group	46/316	51/409	0.5	1.2
		HLA-B Risk factor group	24/154	7/77	0.2	1.7
rs17482078	T	TT/CC+CT
		Whole group	17/344	12/446	0.1	1.8
		HLA-B Risk factor group	6/172	1/83	0.3	2.8
rs10050860	T	TT/CC+CT
		Whole group	17/344	12/446	0.1	1.8
		HLA-B Risk factor group	6/172	1/83	0.3	2.8
rs30187	T	TT/CC+CT
		Whole group	70/292	73/386	0.2	1.3
		HLA-B Risk factor group	39/137	13/71	0.2	1.5
rs2287987	C	CC/TT+CT
		Whole group	17/344	12/446	0.1	1.8
		HLA-B Risk factor group	6/172	1/83	0.3	2.8

Individuals with the HLA-B risk factors are subjects bearing HLA-B*51 and/or B*57.