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The impact of vaccination and patient characteristics on influenza vaccination uptake of elderly people: A discrete choice experiment

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  • The impact of vaccination and patient characteristics on influenza vaccination uptake of elderly people: A discrete choice experiment

    Vaccine. 2018 Feb 6. pii: S0264-410X(18)30103-8. doi: 10.1016/j.vaccine.2018.01.054. [Epub ahead of print]
    The impact of vaccination and patient characteristics on influenza vaccination uptake of elderly people: A discrete choice experiment.

    de Bekker-Grob EW1, Veldwijk J2, Jonker M3, Donkers B4, Huisman J5, Buis S6, Swait J7, Lancsar E8, Witteman CLM9, Bonsel G10, Bindels P11.
    Author information

    Abstract

    OBJECTIVES:

    To improve information for patients and to facilitate a vaccination coverage that is in line with the EU and World Health Organization goals, we aimed to quantify how vaccination and patient characteristics impact on influenza vaccination uptake of elderly people.
    METHODS:

    An online discrete choice experiment (DCE) was conducted among 1261 representatives of the Dutch general population aged 60 years or older. In the DCE, we used influenza vaccination scenarios based on five vaccination characteristics: effectiveness, risk of severe side effects, risk of mild side effects, protection duration, and absorption time. A heteroscedastic multinomial logit model was used, taking scale and preference heterogeneity (based on 19 patient characteristics) into account.
    RESULTS:

    Vaccination and patient characteristics both contributed to explain influenza vaccination uptake. Assuming a base case respondent and a realistic vaccination scenario, the predicted uptake was 58%. One-way changes in vaccination characteristics and patient characteristics changed this uptake from 46% up to 61% and from 37% up to 95%, respectively. The strongest impact on vaccination uptake was whether the patient had been vaccinated last year, whether s/he had experienced vaccination side effects, and the patient's general attitude towards vaccination.
    CONCLUSIONS:

    Although vaccination characteristics proved to influence influenza vaccination uptake, certain patient characteristics had an even higher impact on influenza vaccination uptake. Policy makers and general practitioners can use these insights to improve their communication plans and information regarding influenza vaccination for individuals aged 60 years or older. For instance, physicians should focus more on patients who had experienced side effects due to vaccination in the past, and policy makers should tailor the standard information folder to patients who had been vaccinated last year and to patient who had not.
    Copyright 2018 Elsevier Ltd. All rights reserved.


    KEYWORDS:

    Discrete choice experiment; Influenza vaccination; Patient characteristics; Vaccination characteristics; Vaccination uptake

    PMID: 29426662 DOI: 10.1016/j.vaccine.2018.01.054
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