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Scand J Rheumatol. 2010 Aug;39(4):310-7. doi: 10.3109/03009740903544212.

Incidence and prevalence of psoriatic arthritis, ankylosing spondylitis, and reactive arthritis in the first descriptive population-based study in the Czech Republic.

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Institute of Rheumatology, 1st Faculty of Medicine, Charles University in Prague, Czech Republic.



To estimate the annual incidence and prevalence of psoriatic arthritis (PsA), ankylosing spondylitis (AS), and reactive arthritis (ReA) in a sample of the Czech population.


The population-based study was conducted in two regions of the Czech Republic (with a total population of 186000 inhabitants) in 2002-2003. Incident cases were registered on condition of confirming a definite diagnosis according to existing classification criteria during the study period (1 March 2002 to 1 March 2003). Prevalence was studied on the basis of identification of established diagnoses (before 1 March 2002) from registers of living patients of participating rheumatologists and other specialists. The age-standardized estimates of incidence and prevalence were calculated using the European standard population.


The total annual incidence of PsA in adults aged >or= 16 years was 3.6/100000 [95% confidence interval (CI) 1.4-7.6/100000] and the prevalence of PsA was 49.1/100000 (95% CI 39.5-60.4/100000). The annual incidence of AS in adults was 6.4/100000 (95% CI 3.3-11.3/100000) and the prevalence of AS was 94.2/100000 (95% CI 80.8-109.2/100 000). The annual incidence of ReA in adults was 9.3/100000 (95% CI 5.5-14.8/100000) and the prevalence of ReA was 91.3/100000 (95% CI 78.1-106.2/100000).


The annual incidence and prevalence rates of PsA, AS, and ReA in the first population-based survey in the Czech Republic compared well with data reported from other countries.

[Indexed for MEDLINE]

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