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OpenTrials
Completed

NCT Number: NCT04230343

Limits of the Social Benefit Motive Among High-risk Patients: a Field Experiment on Influenza Vaccination Behaviour

Influenza vaccine uptake remains low worldwide, inflicting substantial costs to public health and health systems. Messages promoting social welfare have been shown to increase vaccination intentions, and it has been recommended that health professionals communicate the socially beneficial aspects of vaccination. This study aims to provide the first test whether this prosocial vaccination hypothesis applies to the actual vaccination behaviour of high-risk patients by comparing the effects of two motivational messages for promoting vaccination at a tertiary care public hospital in Istanbul, Turkey.

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Key information

Age range

18 year–90 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

SB Istanbul Training and Research Hospital

Istanbul, 34098, Turkey (Türkiye)

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients hospitalized at medical departments of the hospital who are on the day of discharge

Exclusion criteria

  • Egg ellergy
  • Previous allergic reaction to influenza vaccine
  • Pregnancy
  • Cognitive disability

Treatment and study plan

Self-benefit message

Behavioral

A pamphlet consisting of a short text and an abstract figure. The top half of the pamphlet described the official criteria for qualifying to be in the risk group. Bottom half indicated that one can gain immunity against influenza by getting the vaccine and included a figure of one smiley face.

Other-benefit message

Behavioral

A pamphlet consisting of a short text and an abstract figure. The top half of the pamphlet described the official criteria for qualifying to be in the risk group. Bottom half indicated that one can gain immunity against influenza by getting the vaccine, and gaining immunity would lower the chances of transmitting the disease to others. The figure included one smiley face surrounded by three other smiley faces.

Primary outcomes

  1. Vaccine uptake following the introduction of the pamphlet

    Time frame: On the same day, upto 24 hours

    Difference in the number of patients in each arm who agree to receive influenza vaccine following the introduction of the pamphlet. The first half of the pamphlet contains information about the the influenza vaccine and the risk groups who are vulnerable to influenza-associated serious diseases. The second half introduces the self-benefit message. And the final part asks if the participant wants to receive the influenza vaccine now.

Secondary outcomes

  1. Vaccine uptake in high and low risk group patients following the introduction of the pamphlet

    Time frame: On the same day, upto 24 hours

    Vaccine uptake in high and low risk group patients. The first half of the pamphlet contains information about the the influenza vaccine and the risk groups who are vulnerable to influenza-associated serious diseases. The second half introduces the social-benefit message. And the final part asks if the participant wants to receive the influenza vaccine now.

Sponsors and collaborators

Lead sponsor

SB Istanbul Education and Research Hospital

Other

Collaborators

  • University of Nottingham

Registry information

Official study title

Limits of the Social Benefit Motive Among High-risk Patients: a Field Experiment on Influenza

Important dates

Study start
2016
Primary completion
2017
Study completion
2017
First posted
Jan 18, 2020
Registry last updated
Jan 18, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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