Independence of HLA alleles in association with chronic thromboembolic pulmonary hypertension
| HLA-B*5201 | Patients | Controls | Odds ratio | p-value |
| Positives | ||||
| Subjects n | 32 | 161 | ||
| DRB1*1502 | 30 (94) | 144 (89) | 1.77 | 0.45 |
| DPB1*0901 | 24 (75) | 119 (74) | 1.16 | 0.90 |
| DPB1*0202 | 4 (13) | 3 (2) | 7.52 | 0.0033 |
| Negatives | ||||
| Subjects n | 48 | 517 | ||
| DRB1*1502 | 1 (2) | 12 (2) | 0.90 | 0.92 |
| DPB1*0901 | 1 (2) | 19 (4) | 0.56 | 0.57 |
| DPB1*0202 | 11 (23) | 40 (8) | 3.55 | 0.00045 |
Data are presented as n (%) unless otherwise stated.