Table 2.
Distribution of HLA-DRB1 alleles in the study population
| RA (n = 235) |
Non-RA (n = 173) |
Controls (n = 269) |
||
|---|---|---|---|---|
| SE | *0101 | 49 (10.4%) | 15 (4.3%) | 32 (5.9%) |
| *0102 | 17 (3.6%) | 13 (3.7) | 16 (3.0%) | |
| *0401 | 27 (5.7%) | 10 (2.9%) | 23 (4.3%) | |
| *0404 | 19 (4%) | 7 (2.0%) | 10 (1.8%) | |
| *0405 | 27 (5.7%) | 9 (2.6%) | 17 (3.1%) | |
| *0408 | 4 (0.8%) | 5 (1.4%) | 8 (1.5%) | |
| *1001 | 18 (3.8%) | 7 (2.0%) | 18 (3.3%) | |
| *1402 | 4 (0.8%) | 2 (0.6%) | 3 (0.5%) | |
| DR3 | *03 | 43 (9.1%) | 54 (15.6%) | 55 (10.2%) |
| DERAA | *0103 | 4 (0.8%) | 9 (2.6%) | 14 (2.6%) |
| *0402 | 7 (1.5%) | 6 (1.7%) | 10 (1.8%) | |
| *1102 | 6 (1.3%) | 5 (1.4%) | 11 (2.0%) | |
| *1103 | 7 (1.5%) | 7 (2.0%) | 12 (2.3%) | |
| *1301 | 25 (5.3%) | 20 (5.8%) | 27 (5.0%) | |
| *1302 | 11 (2.3%) | 1 (0.3%) | 5 (0.9%) | |
| *1304 | - | - | - |
Percentages relate to number of total alleles.
Data are presented as number and percentage of patients in each group. DERAA, HLA with DERAA-encoding alleles; DR3, HLA-DR3; Non-RA, other arthropathies; RA, rheumatoid arthritis; SE, shared epitope alleles.