Table 1. Most significant polymorphic positions (omnibus test) and imputed classical alleles associated with ankylosing spondylitis susceptibility (P-value<1 × 10⁻²⁰⁰⁰).

Position	rs	AA position	Classical allele	χ2	DF	P-value
31,432,180	—	97	—	14,857	5	<10−3,221
31,432,180	rs1071652	—	—	14,841	3	<10−3,221
31,430,829	rs41558317	—	—	14,823	1	<10−3,221
31,432,179	rs1140412	—	—	14,823	2	<10−3,219
—	—	—	HLA-B*27	14,820	1	<10−3,221
31,432,506	—	70	—	14,812	3	<10−3,215
31,432,129	—	114	—	14,402	2	<10−3,128
31,432,130	rs709055	—	—	14,401	2	<10−3,128
31,432,131	rs1050628	—	—	14,389	1	<10−3,127
—	—	—	HLA-B*27:05	14,220	1	<10−3,090
31,430,834	rs3819282	—	—	13,798	1	<10−2,999
31,430,345	rs3819299	—	—	13,757	1	<10−2,990
31,430,346	rs3819299	—	—	13,757	1	<10−2,990
31,451,646	rs4463302	—	—	12,898	1	<10−2,803
31,432,485	—	77	—	12,871	2	<10−2,795
31,432,486	rs1131217	—	—	12,849	1	<10−2,793
31,377,108	rs2394967	—	—	11,613	1	<10−2,524
31,381,125	rs6905036	—	—	11,552	1	<10−2,511
31,432,208	rs41556113	—	—	10,929	1	<10−2,376
31,432,843	rs41553720	—	—	10,299	2	<10−2,237
31,432,515	—	67	—	9,741	4	<10−2,112
31,432,515	rs1071816	—	—	9,725	3	<10−2,110
31,518,387	rs2844510	—	—	9,525	1	<10−2,071

AA, amino acid; DF, degrees of freedom.