RESUMEN
OBJECTIVE: To determine the prevalence of Sjogren's syndrome (SS) in women with spondyloarthropathy (SpA). METHODS: Forty-one women with SpA manifesting as inflammatory back pain and/or peripheral arthritis were diagnosed as having ankylosing spondylitis, undifferentiated spondyloarthropathy, psoriatic arthritis, or enteropathic arthropathy based on accepted criteria. A validated questionnaire was used to look for sicca symptoms in the SpA group and in 102 controls with degenerative rheumatic diseases. Women with SpA and sicca symptoms and/or positive antinuclear antibodies (ANA) were investigated for SS by minor salivary gland biopsy. In the SpA group, the following tests were done: HLA B27; HLA DR, DQ; ENA; and serology for CMV, EBV, HIV, hepatitis B, and hepatitis C. RESULTS: Thirteen women (31.7%) met European criteria for SS, compared to three (2.9%) of the controls. Of the 41 women with SpA, 16 (39%) were ANA-positive. ANA were detected in eight of the 16 (50%) patients with SS. HLA B27 was present in 11 of the 13 (84.6%) SS patients. HLA DR 04.04 and DQ 03.03 seemed more common in SS patients, but the difference was not statistically significant. CONCLUSION: SS was far more common in the women with SpA (31.7%) than in the controls (2.9%), suggesting that the SpA-SS association may not be coincidental.