Table 3.
Distribution of HLA-DRB1 genotypes
| RA (n = 235) |
Non-RA (n = 173) |
Controls (n = 269) |
||||
|---|---|---|---|---|---|---|
| Number | Percentage | Number | Percentage | Number | Percentage | |
| SE/SE | 33 | 14.0 | 7 | 4.0 | 15 | 5.6 |
| SE/- | 70 | 29.8 | 31 | 17.9 | 67 | 24.9 |
| SE/DR3 | 15 | 6.4 | 12 | 6.9 | 16 | 5.9 |
| DR3/- | 21 | 8.9 | 25 | 14.4 | 23 | 8.6 |
| DR3/DR3 | - | - | 5 | 2.9 | 2 | 0.7 |
| SE/DERAA | 14 | 6.0 | 11 | 6.3 | 14 | 5.2 |
| DERAA/- | 29 | 12.3 | 26 | 15.0 | 39 | 14.5 |
| DERAA/DERAA | 5 | 2.1 | 2 | 1.1 | 7 | 2.6 |
| DR3/DERAA | 7 | 3.0 | 7 | 4.0 | 12 | 4.5 |
| No alleles (-/-) | 41 | 17.4 | 47 | 27.1 | 74 | 27.5 |
DERAA, HLA with DERAA-encoding alleles; DR3, HLA-DR3; Non-RA, other arthropathies; RA, rheumatoid arthritis; SE, shared epitope alleles.