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Distribution of HLA ligand alleles and their associations with RA.
| HLA ligand | Frequency in cases | Frequency in controls | Odds ratio | 95% CI | p value 1 |
|---|---|---|---|---|---|
| HLA-C1 | 41 (82%) | 75 (75%) | 1.518 | 0.768-3.000 | 0.4482 |
| HLA-C2 | 33 (66%) | 71 (71%) | 0.793 | 0.436-1.1440 | 0.6612 |
| HLA-BW4 | 39 (78%) | 73 (73%) | 1.311 | 0.682-2.504 | 0.6422 |
| HLA-BW4 T | 8 (16%) | 9 (9%) | 1.926 | 0.808-4.592 | 0.3165 |
| HLA-BW4 I | 25 (50%) | 51 (51%) | 0.961 | 0.552-1.673 | 0.9081 |
| HLA-A-BW4 | 18 (36%) | 33 (33%) | 1.142 | 0.637-2.047 | 0.9665 |
Chi-square with Yate's correction.
