Role of HLA-B Alleles and Clinical Presentation of B27 Negative Spondyloarthritis Patients from Mumbai, Western India

Table 1

Distribution of HLA-B alleles among B27 negative SpA patients and controls from Western India (patients (𝑛=100); controls (𝑛=100)).

Serial number	HLA-B	%PF	%P.F	OR	95% CI	𝜒^2Y	𝑃 value
1	B*51	10	13	0.743	0.309–1.785	0.196	0.506
2	B*52	7	8	0.865	0.301–2.485	0.072	0.788
3	B*07	54	18	5.348	2.808–10.186	26.584	1.14E  − 07
4	B*15	19	12	1.720	0.785–3.765	1.374	0.171
5	B*08	12	14	0.837	0.366–1.914	0.044	0.674
6	B*18	6	9	0.645	0.220–1.887	0.288	0.420
7	B*13	4	3	1.347	0.293–6.183	0.148	0.700
8	B*40	17	32	0.435	0.222–0.850	5.298	0.013
9	B*35	33	44	0.626	0.353–1.113	2.112	0.109
10	B*57	9	7	1.314	0.469–3.678	0.067	0.602
11	B*58	8	4	2.080	0.607–7.169	0.797	0.233
12	B*44	9	15	0.560	0.232–1.348	1.184	0.191
13	B*47	3	6	0.484	0.117–1.995	0.465	0.306
14	B*48	2	0	5.102	0.241–107.70	0.505	0.155
15	B*53	1	1	1.000	0.061–16.224	0.000	1.000
16	B*49	1	3	0.326	0.033–3.196	0.255	0.312
17	B*38	0	1	0.330	0.013–8.205	1.005	0.316
18	B*78	0	2	0.196	0.009–4.138	0.505	0.155
19	B*81	1	3	0.326	0.333–3.196	0.255	0.312
20	B*37	1	3	0.326	0.333–3.196	0.255	0.312
21	B*42	0	1	0.330	0.013–8.205	1.005	0.316
22	B*56	3	1	3.062	0.312–29.965	0.255	0.312

N+: number positive, PF: phenotype frequency, OR: odds ratio, 𝜒²Y: chi-square with Yates’ correction.