Severe hospitalised 2009 pandemic influenza A(H1N1) cases in France, 1 July-15 November 2009

C Fuhrman; I Bonmarin; A C Paty; N Duport; E Chiron; E Lucas; D Bitar; A Mailles; M Herida; S Vaux; D Lévy-Bruhl

doi:10.2807/ese.15.02.19463-en

Surveillance and outbreak reports Open Access

Like 0

This item has no PDF Download

Severe hospitalised 2009 pandemic influenza A(H1N1) cases in France, 1 July-15 November 2009
C Fuhrman¹ , I Bonmarin¹ , A C Paty¹ , N Duport¹ , E Chiron¹ , E Lucas¹ , D Bitar¹ , A Mailles¹ , M Herida¹ , S Vaux¹ , D Lévy-Bruhl¹
View Affiliations Hide Affiliations

Affiliations: ¹ Institut de Veille Sanitaire, Saint-Maurice, France

Correspondence:
C Fuhrman
c.fuhrman invs.sante.fr
View Citation Hide Citation

Citation style for this article: Fuhrman C, Bonmarin I, Paty A C, Duport N, Chiron E, Lucas E, Bitar D, Mailles A, Herida M, Vaux S, Lévy-Bruhl D. Severe hospitalised 2009 pandemic influenza A(H1N1) cases in France, 1 July-15 November 2009. Euro Surveill. 2010;15(2):pii=19463. https://doi.org/10.2807/ese.15.02.19463-en Received: 14 Dec 2009

Abstract

From 1 July 2009 to 15 November 2009, 244 patients with 2009 pandemic influenza A(H1N1) were admitted to intensive care unit (ICU) and were compared with 514 cases hospitalised in medical wards in France until 2 November 2009. Detailed case-based epidemiological information and outcomes were gathered for all hospitalised cases. Infants and pregnant women are overrepresented among cases admitted to ICU with seven per cent for both groups respectively, and twenty per cent of ICU cases did not belong to a risk group. Chronic respiratory disease was the most common risk factor among cases but obesity (body mass index ≥ 30 Kg/m2), chronic cardiac disease and immunosuppression were risk factors associated with severe illness after adjustment for age and for other co-morbidities.