HLA-DR Antigenic Frequencies of ITP Patients and Controls
| HLA Antigen . | Controls (n = 71) . | ITP Patients (n = 111) . | Relative Risk . | ||
|---|---|---|---|---|---|
| No. . | % . | No. . | % . | ||
| DR1 | 10 | 14.1 | 8 | 7.2 | 0.47 |
| DR2 | 29 | 40.8 | 43 | 38.7 | 0.92 |
| DR3 | 1 | 1.4 | 1 | 0.9 | 0.64 |
| DR4 | 34 | 47.9 | 57 | 51.3 | 1.15 |
| DR5 | 9 | 12.7 | 15 | 13.5 | 1.08 |
| DR6 | 27 | 38.0 | 22 | 19.8 | 0.36 |
| DR7 | 0 | 0.0 | 0 | 0.0 | 0.64 |
| DR8 | 13 | 18.3 | 31 | 27.9 | 1.73 |
| DR9 | 17 | 23.9 | 36 | 32.4 | 1.52 |
| DR10 | 1 | 1.4 | 1 | 0.9 | 0.70 |
| DR52 | 35 | 49.3 | 36 | 32.4 | 0.49 |
| DR53 | 42 | 59.2 | 81 | 73.0 | 1.86 |
| HLA Antigen . | Controls (n = 71) . | ITP Patients (n = 111) . | Relative Risk . | ||
|---|---|---|---|---|---|
| No. . | % . | No. . | % . | ||
| DR1 | 10 | 14.1 | 8 | 7.2 | 0.47 |
| DR2 | 29 | 40.8 | 43 | 38.7 | 0.92 |
| DR3 | 1 | 1.4 | 1 | 0.9 | 0.64 |
| DR4 | 34 | 47.9 | 57 | 51.3 | 1.15 |
| DR5 | 9 | 12.7 | 15 | 13.5 | 1.08 |
| DR6 | 27 | 38.0 | 22 | 19.8 | 0.36 |
| DR7 | 0 | 0.0 | 0 | 0.0 | 0.64 |
| DR8 | 13 | 18.3 | 31 | 27.9 | 1.73 |
| DR9 | 17 | 23.9 | 36 | 32.4 | 1.52 |
| DR10 | 1 | 1.4 | 1 | 0.9 | 0.70 |
| DR52 | 35 | 49.3 | 36 | 32.4 | 0.49 |
| DR53 | 42 | 59.2 | 81 | 73.0 | 1.86 |