Volume 58, Issue 12 pp. 3951-3959
Beheets Disease

Population-based prevalence study of Behçet's disease: Differences by ethnic origin and low variation by age at immigration

Alfred Mahr

Corresponding Author

Alfred Mahr

Université Paris 5–René Descartes, Hôpital Cochin, Assistance Publique Hôpitaux de Paris, Paris, France

Department of Internal Medicine, Hôpital Cochin, Assistance Publique Hôpitaux de Paris, 27 Rue du Faubourg St. Jacques, 75679 Paris Cedex 14, FranceSearch for more papers by this author
Linda Belarbi

Linda Belarbi

Université Paris 5–René Descartes, Hôpital Cochin, Assistance Publique Hôpitaux de Paris, Paris, France

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Bertrand Wechsler

Bertrand Wechsler

Hôpital de la Pitié–Salpêtrière, Paris, France

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Dominique Jeanneret

Dominique Jeanneret

Service Médical Assurance-Maladie Île-de-France (CNAMTS), Bobigny, France

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Robin Dhote

Robin Dhote

Hôpital Avicenne, Bobigny, France

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Olivier Fain

Olivier Fain

Hôpital Jean-Verdier, Bondy, France

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François Lhote

François Lhote

Hôpital Delafontaine, Saint-Denis, France

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Jacky Ramanoelina

Jacky Ramanoelina

Hôpital Robert-Ballanger, Aulnay-sous-Bois, France

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Joël Coste

Joël Coste

Université Paris 5–René Descartes, Hôpital Cochin, Assistance Publique Hôpitaux de Paris, Paris, France

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Loïc Guillevin

Loïc Guillevin

Université Paris 5–René Descartes, Hôpital Cochin, Assistance Publique Hôpitaux de Paris, Paris, France

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First published: 26 November 2008
Citations: 164

Abstract

Objective

To estimate the prevalence of Behçet's disease (BD) in a multiethnic population living in France, with particular focus on disease risk among immigrants.

Methods

The study was conducted in a county in the Paris metropolitan area that is home to 1,094,412 adults (ages ≥15 years), of whom 26% are of non-European ancestry. Patients with BD living in this area during 2003 were identified using 3 sources (hospitals, community physicians, and the National Health Insurance database), and diagnoses were verified using the International Study Group criteria. Standardized, year-2003 prevalence rates were computed for the overall population and for each ethnic group. Stratified prevalence rates according to age at immigration to France were calculated to investigate the relationship between age at immigration and BD risk.

Results

Seventy-nine subjects fulfilled our search criteria. The overall prevalence per 100,000 adults was 7.1 (95% confidence interval [95% CI] 3.5–14.4), and the prevalence for populations of European, North African, and Asian ancestry was 2.4 (95% CI 0.6–7.2), 34.6 (95% CI 24.4–47.5), and 17.5 (95% CI 10.7–27.2), respectively. Within the migrant population of either North African or Asian ancestry, BD prevalences were similar for residents born in France, residents <15 years old at immigration, and residents ≥15 years old at immigration.

Conclusion

Our findings indicate that the prevalence of BD among immigrants of North African or Asian ancestry is significantly higher than that in the European-origin population, and comparable with rates reported from North Africa and Asia. Moreover, our results suggest that BD risk is not related to age at immigration. These findings support the hypothesis that BD has a primarily hereditary basis.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.

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