title: Long-term prognosis of monoarthritis. A follow-up study.
abstract: During 1973-75, a total of 446 patients with recent arthritis were examined. The diagnosis in 32 cases was non-classified monoarthritis. After the 3-9 years' follow-up of these 32 patients, two seropositive, definite rheumatoid arthritis cases (6%), and one ankylosing spondylitis case were noted. In the remaining patients the diagnosis was still non-specific arthritis. Of the 31 patients tested, 39% were HLA-B27-positive. The difference between this and the HLA-B27-positivity in the normal Finnish population (14%) is statistically significant (p less than 0.005). At the end of the follow-up the good prognosis of monoarthritis was confirmed: only one erosion developed in one patient's hands or feet.
mesh_terms: D000328:Adult; D001168:Arthritis / Q000175:diagnosis* / Q000276:immunology; D001172:Arthritis, Rheumatoid / Q000175:diagnosis; D005260:Female; D005500:Follow-Up Studies; D006680:HLA Antigens / Q000032:analysis; D015796:HLA-B27 Antigen; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011446:Prospective Studies; D013167:Spondylitis, Ankylosing / Q000175:diagnosis
chemical_list: D006680:HLA Antigens; D015796:HLA-B27 Antigen