title: Family studies in Bechterew's syndrome (ankylosing spondylitis). II. Prevalences of symptoms and signs in relatives of HLAB27 negative probands.
abstract: All available adult first-degree relatives of 9 probands with HLAB27 negative ankylosing spondylitis were examined. Completion rate was 90%. Prevalences of symptoms and signs and distributions of chest and spinal mobility are presented. No secondary case of Bechterew's syndrome was found among the relatives, compared with 10% among the relatives of HLAB27 positive probands (p = 0.05). We conclude from this study and that of relatives of HLAB27 positive probands, that a HLAB27 negative relative runs a low risk of contracting Bechterew's syndrome, irrespective of the HLAB27 status of the proband.
mesh_terms: D000328:Adult; D000368:Aged; D001416:Back Pain / Q000000981:diagnostic imaging; D005260:Female; D006680:HLA Antigens / Q000032:analysis*; D015796:HLA-B27 Antigen; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012446:Sacroiliac Joint / Q000000981:diagnostic imaging; D013167:Spondylitis, Ankylosing / Q000000981:diagnostic imaging / Q000235:genetics*
chemical_list: D006680:HLA Antigens; D015796:HLA-B27 Antigen