title: HLA-DR antigen frequencies in a North Indian type I diabetic population.
abstract: Eighty-eight North Indian patients with type I, insulin-dependent diabetes mellitus (IDDM) and 113 unaffected individuals were typed for HLA-DR antigens from DR1 to DR7. The frequency of HLA-DR3 was significantly increased in the patients as compared with the controls (78.4% versus 25.7%, corrected P = 1.68 X 10(-12], the relative risk (RR) of 10.52 being much higher than that reported in the Western IDDM population. HLA-DR2 showed a significant negative association (RR = 0.18, corrected P = 1.03 X 10(-5], but DR4 had no relationship with IDDM in the present study (RR = 1.12, P = 0.12). These results emphasize the differences in HLA-IDDM associations among different ethnic groups.
mesh_terms: D000328:Adult; D000906:Antibodies / Q000032:analysis; D003922:Diabetes Mellitus, Type 1 / Q000235:genetics* / Q000276:immunology; D005787:Gene Frequency; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000235:genetics*; D006801:Humans; D007194:India; D007515:Islets of Langerhans / Q000276:immunology; D008875:Middle Aged
chemical_list: D000906:Antibodies; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II