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Prevalence of Seasonal Influenza Vaccination in Chronic Obstructive Pulmonary Disease (COPD) Patients in the Balearic Islands (Spain) and Its Effect on COPD Exacerbations: A Population-Based Retrospective Cohort Study

Abstract: To determine the prevalence of influenza vaccination in chronic obstructive pulmonary disease (COPD) patients and its effect on COPD exacerbations, we conducted a retrospective population-based cohort study analyzing real-life data. We included all registered COPD patients ?40 years old using respiratory medication during the study period (2012?2013). Influenza vaccination during the 2012/2013 campaign was the parameter studied. Moderate and severe exacerbations during 2013 were the dependent outcome variables. Logistic regression adjusting for age, gender, concomitant asthma diagnosis, COPD severity, smoking status, number of moderate and severe exacerbations the previous year, and comorbidities was performed, and 59.6% of the patients received seasonal influenza vaccination. The percentage of patients with exacerbations was higher among those vaccinated. Influenza vaccination had a statistically significantly negative (non-protective) crude effect favoring the risk of severe exacerbations: OR: 1.20 (95% CI; 1.05?1.37). This association diminished and lost statistical significance after adjustment: aOR: 0.93 (95% CI; 0.74?1.18). The protective effect in the analysis restricted to the epidemic period was not significant: aOR: 0.82 (95% CI; 0.58?1.16). We concluded that prevalence of influenza vaccination was suboptimal. In contrast with most of the available evidence, our results did not support a protective effect of influenza vaccination on the risk of admission for COPD exacerbation.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Int. J. Environ. Res. Public Health 2020, 17(11), 4027

Editorial: MDPI

 Fecha de publicación: 05/06/2020

Nº de páginas: 12

Tipo de publicación: Artículo de Revista

DOI: 10.3390/ijerph17114027

ISSN: 1661-7827,1660-4601

Url de la publicación: https://www.mdpi.com/1660-4601/17/11/4027/htm

Autores/as

ROMAN RODRIGUEZ, MIGUEL

LLORT BOVE, MONTSERRAT

BOVEN, JOB F.M. VAN