Objective: To determine the clinical and immunological characteristics of primary Sjögren' syndrome (SS) in men from a large series of unselected patients with this condition.
Methods: We studied 223 consecutive patients (204 women and 19 men; mean age at onset 53 y, range 15-87 y, mean disease duration 77 months) with primary SS visited in our units. All these patients fulfilled 4 or more of the diagnostic criteria for SS proposed by the European Community Study Group in 1993.
Results: Nineteen (9%) patients were men and they represent the male group described in this paper. Extraglandular manifestations during the course of their disease were present in 10 (53%) of our male patients with primary SS: articular involvement in 4 (21%) patients, interstitial pneumopathy in 3 (16%) and peripheral neuropathy in 2 (11%). ANA were positive in 13 (68%) patients, RF in 5 (31%), anti-Ro/SS-A in 3 (16%) and cryoglobulins in 1/14 (7%). When compared with women, men with primary SS presented a lower prevalence of articular involvement (21% vs 46%, P=0.03, OR 0.32, CI 0.07-0.97).
Conclusion: Although primary SS is typically a disease of middle-aged women, clinicians should note that it may be diagnosed in male patients. Except for a lower prevalence of articular involvement, we could no find any notable differences in clinical and immunological characteristics between male and female patients with primary SS.
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