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dc.contributor.authorDomínguez, Angela
dc.contributor.authorSoldevila, Núria
dc.contributor.authorToledo, Diana
dc.contributor.authorGodoy i García, Pere
dc.contributor.authorEspejo, Elena
dc.contributor.authorFernandez, Maria Amelia
dc.contributor.authorMayoral, José María
dc.contributor.authorCastilla, Jesús
dc.contributor.authorEgurrola, Mikel
dc.contributor.authorTamames, Sonia
dc.contributor.authorAstray, Jenaro
dc.contributor.authorMorales, María
dc.description.abstractInfluenza vaccination may limit the impact of influenza in the community. The aim of this study was to assess the effectiveness of influenza vaccination in preventing hospitalisation in individuals aged ≥ 65 years in Spain. A multicentre case–control study was conducted in 20 Spanish hospitals during 2013/14 and 2014/15. Patients aged ≥ 65 years who were hospitalised with laboratory-confirmed influenza were matched with controls according to sex, age and date of hospitalisation. Adjusted vaccine effectiveness (VE) was calculated by multivariate conditional logistic regression. A total of 728 cases and 1,826 matched controls were included in the study. Overall VE was 36% (95% confidence interval (CI): 22–47). VE was 51% (95% CI: 15–71) in patients without high-risk medical conditions and 30% (95% CI: 14–44) in patients with them. VE was 39% (95% CI: 20–53) in patients aged 65–79 years and 34% (95% CI: 11–51) in patients aged ≥ 80 years, and was greater against the influenza A(H1N1)pdm09 subtype than the A(H3N2) subtype. Influenza vaccination was effective in preventing hospitalisations of elderly individuals.ca_ES
dc.description.sponsorshipThis work was supported by the National Plan of I+D+I 2008–2011 and ISCIII-Subdirección General de Evaluación y Fomento de la Investigación (Project PI12/02079), and cofunded by Fondo Europeo de Desarrollo Regional (FEDER) and the Catalan Agency for the Management of Grants for University Research (AGAUR grant number 2014/ SGR 1403).ca_ES
dc.publisherEuropean Centre for Disease Prevention and Controlca_ES
dc.relation.isformatofReproducció del document publicat a
dc.relation.ispartofEurosurveillance, 2017, vol. 22, núm. 34, p. 1-8ca_ES
dc.rightscc-by (c) Domínguez et al., 2017ca_ES
dc.subjectPreventing hospitalisationsca_ES
dc.subjectElderly individualsca_ES
dc.subjectInfluenza vaccinationca_ES
dc.titleThe effectiveness of influenza vaccination in preventing hospitalisations of elderly individuals in two influenza seasons: a multicentre case–control study, Spain, 2013/14 and 2014/15ca_ES

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cc-by (c) Domínguez et al., 2017
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