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Scand J Rheumatol. 2008 Jan-Feb;37(1):30-4. doi: 10.1080/03009740701678712.

Estimation of the prevalence of primary Sjögren's syndrome in two age-different community-based populations using two sets of classification criteria: the Hordaland Health Study.

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1
Department of Rheumatology, Østfold County Hospital, Norway.

Abstract

OBJECTIVE:

To estimate the point prevalence of primary Sjögren's syndrome (pSS) in two populations, aged 40-44 and 71-74 years, using two sets of classification criteria.

METHODS:

The participating individuals were recruited from the Hordaland Health Study (HUSK) conducted during 1997-99. A total of 18 592 individuals born 1953-57 and 3346 individuals born 1925-27 were sent a questionnaire covering various health-related questions, including four questions about sicca symptoms. Among those answering positive to at least one of the four questions, 99 and 90 individuals born 1953-57 and 1925-27, respectively, were examined further. For diagnosis of pSS two classifications were used, the preliminary European criteria from 1993, and the revised European criteria from 1996.

RESULTS:

By using the two classification criteria from 1993 and 1996, the point prevalences were 0.44% [95% confidence interval (CI) 0.34-0.57] and 0.22% (95% CI 0.15-0.32), respectively, for the population group born 1953-57. The corresponding estimates were 3.39% (95% CI 2.77-4.14) and 1.40% (95% CI 1.02-1.92) for the population born 1925-27.

CONCLUSION:

The point prevalence of pSS was approximately seven times higher in the elderly population aged 71-74 years compared to individuals aged 40-44 years, regardless of the classification criteria used.

PMID:
18189192
DOI:
10.1080/03009740701678712
[Indexed for MEDLINE]
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