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Effects of annual influenza vaccination on mortality in patients with heart failure.

Blaya-Nováková, Vendula; Prado-Galbarro, Francisco J; Sarría-Santamera, Antonio.
Eur J Public Health; 26(5): 890-892, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27615735
The objective was to evaluate the effect of influenza vaccine on all-cause mortality in a cohort of patients with heart failure followed up in primary care centres of the Community of Madrid, Spain, during the period 2006-10. Results of the Cox proportional-hazard model were adjusted for age and sex and, after 1:1 nearest neighbour matching, for propensity score. The analysis was further stratified by season. Having received annual influenza vaccine was associated with a decreased risk of death during the influenza season (hazard ratio = 0.59, 95% CI = 0.41-0.84), but no protective effect was observed before or after the influenza season.
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