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. 1995 Apr;22(4):659-61.

Prevalence of primary Sjögren's syndrome in China

N Z Zhang  1 , C S Shi, Q P Yao, G X Pan, L L Wang, Z X Wen, X C Li, Y Dong
Affiliations
  • PMID: 7791159

Prevalence of primary Sjögren's syndrome in China

N Z Zhang et al. J Rheumatol. 1995 Apr.

Abstract

Objective: To determine the prevalence rate of primary Sjögren's syndrome (SS) in a community population of 2066 adults in a Beijing suburban village, and 100 inpatients, who were not necessarily admitted for rheumatic diseases.

Methods: Questionnaire and serological studies of antinuclear antibodies, rheumatoid factor, and anti-SSA, anti-SSB antibodies were done. Possible positive subjects were given eye and oral examinations for objective evidence of xerostomia and keratoconjunctivitis sicca.

Results: According to the Copenhagen criteria, the prevalence rate of primary Sjögren's syndrome in China was 0.77%, and it was 0.33% by modified San Diego criteria. In 100 inpatients, we found 4 cases of primary Sjögren's syndrome by Copenhagen criteria, and one case by modified San Diego criteria.

Conclusion: Primary Sjögren's syndrome is not a rare disease in China, but most cases are overlooked or misdiagnosed.

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