title: HL-A frequencies in Crohn's disease and ulcerative colitis.
abstract: Sixty-two patients with Crohn's disease and 51 with ulcerative colitis were HL-A typed. Phenotype frequencies were calculated and compared with those of a control group of 335 individuals. A higher frequency of HL-A17 was found among the Crohn's disease patient but this was not significant. However, HL-A17 has been included in two studies on Crohn's disease and the combined relative risk is 3.24 which significantly deviates from 1 unity. No statistically significant differences in the HL-A antigen distribution were found among the patients with ulcerative colitis.
mesh_terms: D000328:Adult; D003093:Colitis, Ulcerative / Q000235:genetics / Q000276:immunology*; D003424:Crohn Disease / Q000235:genetics / Q000276:immunology*; D005260:Female; D005787:Gene Frequency; D006680:HLA Antigens / Q000032:analysis; D006649:Histocompatibility Antigens / Q000032:analysis; D006801:Humans; D008297:Male; D010641:Phenotype
chemical_list: D006680:HLA Antigens; D006649:Histocompatibility Antigens