NCT06300242CompletedNot Applicable
Financial Incentives for Influenza Vaccination
University of Southern California2 sites in 1 country69,972 target enrollmentStarted: January 17, 2024Last updated:
Conditions
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Enrollment
- 69,972
- Locations
- 2
- Primary Endpoint
- Vaccination status at 1 week
Study Overview
Brief Summary
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.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Health Services Research
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
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
Outcomes
Primary Outcomes
Vaccination status at 1 week
Time Frame: 1 week
influenza vaccination status as documented in the EMR and from the California Immunization Registry (CAIRS)
Secondary Outcomes
- Vaccination status at 1 month(1 month)
- Vaccination status at 2 weeks(2 weeks)
Investigators
Mireille Jacobson
Associate Professor
University of Southern California
Study Sites (2)
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