title: Evaluating influenza vaccination campaigns beyond coverage: a before-after study among health care workers.
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).
  
  
  CONCLUSIONS
  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.
authors.affiliation: Preventive Medicine and Epidemiology Unit, Hospital Clínic-Universitat de Barcelona-Barcelona Centre for International Health Research, Barcelona, Catalonia, Spain. allupia@clinic.ub.es
authors.forename: Anna
authors.initials: A
authors.lastname: Llupià
authors.forename: Guillermo
authors.initials: G
authors.lastname: Mena
authors.forename: Victòria
authors.initials: V
authors.lastname: Olivé
authors.forename: Sebastiana
authors.initials: S
authors.lastname: Quesada
authors.forename: Marta
authors.initials: M
authors.lastname: Aldea
authors.forename: Víctor G
authors.initials: VG
authors.lastname: Sequera
authors.forename: José
authors.initials: J
authors.lastname: Ríos
authors.forename: Alberto L
authors.initials: AL
authors.lastname: García-Basteiro
authors.forename: Pilar
authors.initials: P
authors.lastname: Varela
authors.forename: José M
authors.initials: JM
authors.lastname: Bayas
authors.forename: Antoni
authors.initials: A
authors.lastname: Trilla
mesh_terms: D000328:Adult; D001291:Attitude of Health Personnel; D005260:Female; D006282:Health Personnel / Q000523:psychology / Q000706:statistics & numerical data*; D006293:Health Promotion / Q000379:methods*; D006785:Hospitals, University; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D016272:Occupational Health; D010342:Patient Acceptance of Health Care; D015397:Program Evaluation; D013030:Spain; D014611:Vaccination / Q000706:statistics & numerical data*
chemical_list: D007252:Influenza Vaccines
keywords: Health promotion; Hospital; Occupational health; Risk acceptability; Risk perception