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Evaluating influenza vaccination campaigns beyond coverage: A before-after study among health care workers

Authors
Journal
American Journal of Infection Control
0196-6553
Publisher
Elsevier
Volume
41
Issue
8
Identifiers
DOI: 10.1016/j.ajic.2013.04.006
Keywords
  • Hospital
  • Risk Perception
  • Health Promotion
  • Occupational Health
  • Risk Acceptability
Disciplines
  • Education

Abstract

Background Influenza vaccination campaigns based on educational interventions do not seem to increase coverage in the hospital setting, and their impact on educational goals is not usually evaluated. This study describes the campaign implemented in a university hospital and assesses the achievement of the strategic objectives, which were to increase health care workers (HCW) perceptions of the risk of influenza and of their role as promoters of influenza vaccination among their colleagues and to increase knowledge about influenza. Methods A before-after study was conducted using a self-administered survey in a randomized sample of HCW during the 2010-2011 influenza vaccination campaign. The Wilcoxon paired measures test was used to assess attainment of the strategic objectives. Results The campaign had a positive impact on the strategic objectives (Wilcoxon test, P value <.05 in all cases). The reach of the campaign was high (91.9%), and HCW rated it as positive (7.19 [standard deviation, 2.3] out of 10) but did not achieve increased coverage (34%; 95% confidence interval: 33.8-36.4). Conclusion Evaluation of the campaign shows that its effect responded to the strategic objectives. However, it seems that increasing the information provided to HCW and heightening their risk perception do not necessarily lead to greater acceptance of influenza vaccination.

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