Incidence of primary Sjögren’s syndrome in Slovenia

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Abstract

Objective:

To determine the annual incidence of primary Sjögren’s syndrome (pSS) in Slovenia.

Methods:

All patients admitted to our department of rheumatology or referred to our outpatient clinic between 1 January 2000 and 31 December 2002 owing to sicca symptoms or because of a suspicion of SS were examined. Our rheumatological department is the only tertiary referral centre for the Ljubljana region, which has a population of 599 895 Caucasian people. All patients were evaluated by the validated European criteria for SS. The exact 95% confidence interval (CI) based on binomial distribution was created for the incidence estimate.

Results:

248 patients were examined; 71 of them (28.6%; 65 women, 6 men) were diagnosed as having pSS. Their mean (SD) age was 51.3 (14.5) years (range 19–78). The average annual incidence for pSS in our study population was calculated as 3.9 cases per 100 000 inhabitants (95% CI 1.1 to 10.2).

Conclusion:

The estimated annual incidence of pSS in Slovenia is 3.9/100 000.

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