HLA genotypes frequencies in the study population with CD as determined by the traditional Human leukocyte antigen (HLA) testing
| Group | HLA genotype | Number (%) |
| DQ2− | 9/63 (14%) | |
| 2 (CD+ve DM1-ve) | DQ2+ | 54/63 (85%) |
| DQ2+, DQX | 20/54 (37%) | |
| DQ2+, DQ7+ | 17/54 (31.5%) | |
| DQ2 +DQ2 | 17/54 (31.5%) | |
| DQ2− | 3/25 (12%) | |
| 1 (DM1+ve CD+ve) | DQ2+ | 22/25 (88%) |
| DQ2+, DQX | 8/22 (36%) | |
| DQ2+, DQ7+ | 1/22 (4.55%) | |
| DQ2 +DQ2+ | 11/22 (50%) | |
| DQ2− | 0/2 (0%) | |
| 4 (Control CD+ve) | DQ2+ | 2/2 (100%) |
| DQ2+, DQX | 1/2 (50%) | |
| DQ2+, DQ2+ | 1/2 (50%) |