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Incentives for Influenza Vaccination

University of Southern California logo

University of Southern California

Status

Completed

Conditions

Influenza Vaccination

Treatments

Behavioral: Financial Incentive
Behavioral: Reminders
Other: Placebo

Study type

Interventional

Funder types

Other

Identifiers

NCT06300242
UP-23-00859

Details and patient eligibility

About

In this work, we are assessing the impact of messaging with or without a $50 financial incentive on influenza vaccination rates in a county health system. Our main hypothesis is that a message with a $50 financial incentive will increase vaccination rates relative to a control/"treatment as usual" group. We further hypothesize that the financial incentive will increase vaccination rates relative to the message only arm.

Enrollment

69,972 patients

Sex

All

Ages

18+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Ages 18 and over
  • Empaneled patients or non-empaneled patients with a primary care visit in past 18 months with valid insurance
  • Due for an annual flu shot according to the electronic medical record
  • Active phone number or email
  • Do not have "Do not contact" flag

Exclusion criteria

  • Under age 18
  • Received an annual flu shot based on medical record

Trial design

Primary purpose

Health Services Research

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

69,972 participants in 3 patient groups

Message Only
Experimental group
Description:
Patients sent an email or SMS reminding them to get vaccinated against the flu.
Treatment:
Behavioral: Reminders
Message + Financial Incentive
Experimental group
Description:
Patients sent an email or SMS reminding them to get vaccinated against the flu and offering them a $50 financial incentive if they are vaccinated within 1-week.
Treatment:
Behavioral: Financial Incentive
Behavioral: Reminders
Active Control
Active Comparator group
Description:
Patients not sent any reminder message.
Treatment:
Other: Placebo

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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