Low and stable prevalence of rheumatoid arthritis in northern France - 21/10/09
, Véronique Beague b, David Verloop b, Dominique Mollet b, Dominique Lajugie b, Guy Baudens c, Patrick Neirinck b, René Marc Flipo a
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Abstract |
Objectives |
Few data are available on the prevalence of rheumatoid arthritis (RA) in France. Results of the Épidémiologie des rhumatismes inflammatoires (EPIRHUM-2) study suggest a lower prevalence in northern France (0.13%) than nationwide (0.31%) or in southern France (0.66%). Here, our objective was to confirm the lower prevalence of RA in northern France than in the rest of the country or in Europe.
Methods |
We used the universal health insurance database to identify patients with RA in northern France (Nord-Pas de Calais region) in 2005.
Results |
Seven thousand one hundred and twenty-eight patients of the 3,617,224 individuals receiving health insurance under the plan for salaried workers in the Nord-Pas de Calais region (89.3% of the population in the region) were listed as receiving free care for RA, yielding a prevalence of 197.1/100,000 population (female-to-male ratio, 2.99:1; mean age, 60.8 years).
Discussion |
The prevalence of RA in northern France (0.197% in 2005) is lower than in southern France and northern Europe; thus, the prevalence gradient in France is in the opposite direction to the decreasing north-to-south gradient previously described in Europe. Although environmental and genetic factors involved in the pathogenesis of RA may be involved, the main explanation to the low prevalence in northern France may be the young age of the population.
Le texte complet de cet article est disponible en PDF.Keywords : Rheumatoid arthritis, Epidemiology, Prevalence, Northern France, Health insurance
Plan
Vol 76 - N° 5
P. 497-500 - octobre 2009 Retour au numéro
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