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Randomized controlled trial on promoting influenza vaccination in general practice waiting rooms

Abstract : Background: Most of general practitioners (GPs) use advertising in their waiting rooms for patient's education purposes. Patients vaccinated against seasonal influenza have been gradually lessening. The objective of this trial was to assess the effect of an advertising campaign for influenza vaccination using posters and pamphlets in GPs' waiting rooms. Methods and findings: Registry based 2/1 cluster randomized controlled trial, a cluster gathering the enlisted patients of 75 GPs aged over 16 years. The trial, run during the 2014-2015 influenza vaccination campaign, compared patient's awareness from being in 50 GPs' standard waiting rooms (control group) versus that of waiting in 25 rooms from GPs who had received and exposed pamphlets and one poster on influenza vaccine (intervention group), in addition to standard mandatory information. The main outcome was the number of vaccination units delivered in pharmacies. Data were extracted from the SIAM-ERASME claim database of the Health Insurance Fund of Lille-Douai (France). The association between the intervention (yes/no) and the main outcome was assessed through a generalized estimating equation. Seventy-five GPs enrolled 10,597 patients over 65 years or suffering from long lasting diseases (intervention/control as of 3781/6816 patients) from October 15, 2014 to February 28, 2015. No difference was found regarding the number of influenza vaccination units delivered (Relative Risk (RR) = 1.01; 95% Confidence interval: 0.97 to 1.05; p = 0.561). Conclusion: Effects of the monothematic campaign promoting vaccination against influenza using a poster and pamphlets exposed in GPs' waiting rooms could not be demonstrated.
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Submitted on : Monday, April 6, 2020 - 10:47:30 AM
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Christophe Berkhout, Amy Willefert-Bouche, Emmanuel Chazard, Suzanna Zgorska-Maynard-Moussa, Jonathan Favre, et al.. Randomized controlled trial on promoting influenza vaccination in general practice waiting rooms. PLoS ONE, Public Library of Science, 2018, 13, pp.e0192155. ⟨10.1371/journal.pone.0192155⟩. ⟨hal-02532986⟩

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