COVID-19 Vaccine Rollout: VEText Message Framing and Covid-19 Vaccine Uptake Among at Risk Veterans
Trial Snapshot
- Phase
- Not Applicable
- Enrollment
- 4,311
- Locations
- 1
- Primary Endpoint
- Vaccine appointments scheduled/completed
Study Overview
Brief Summary
This is a prospective, randomized controlled trial that will evaluate the effectiveness of two different targeted outreach interventions aimed at increasing Covid-19 vaccine uptake. Veterans who are eligible for COVID-19 vaccine receipt by priority status (based on institutional guidelines) will be identified. Veterans must be enrolled into Veterans Health Administration (VHA) care and meet age or illness institutional priority guidelines to be eligible. Veterans eligible for enrollment into the trial will be randomized in a 1:1:1 allocation at an individual level, using permuted block randomization (with random block sizes of 3 and 6) to the following interventions:
- Control arm - receives a text message with standard messaging
- Arm 2 - receives a text message with a message framed for scarcity
- Arm 3 - receives a text message with a message framed for improving the social good
Detailed Description
OBJECTIVE:
To compare the effectiveness of different text message reminders sent through an interactive mobile system (VEText) at increasing Covid-19 vaccine uptake among at risk Veterans.
OVERVIEW:
This is a prospective, randomized controlled trial that will evaluate the effectiveness of two different targeted outreach interventions at increasing Covid-19 vaccine uptake. Veterans who are eligible for Covid-19 vaccine receipt by priority status (based on institutional guidelines) will be identified. Veterans must be enrolled into VHA care and meet age or illness institutional priority guidelines to be eligible. Veterans eligible for enrollment into the trial will be randomized in a 1:1:1 allocation at an individual level, using permuted block randomization (with random block sizes of 3 and 6) to the following interventions:
- Control arm - receives a text message with standard messaging
- Arm 2 - receives a text message with a behavioral scarcity message
- Arm 3 - receives a text message with a behavioral social good message
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Health Services Research
- Masking
- Single (Participant)
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Eligible participants are automatically enrolled in this project. We are unable to enroll participants upon request.
- •Inclusion Criteria:
- •Veterans must be enrolled into VHA care
- •Veterans must meet age or illness institutional priority guidelines for eligibility for COVID-19 vaccine receipt
Exclusion Criteria
- Not provided
Arms & Interventions
Control
Will receive a text message with standard messaging used to alert veterans that they are eligible for COVID-19 vaccine and offer scheduling embedded within the text message.
Scarcity
Will receive a text message with a behavioral scarcity message used to alert veterans that they are eligible for COVID-19 vaccine and offer scheduling embedded within the text message.
Intervention: Behavioral economics (Behavioral)
Social good
Will receive a text message with a behavioral social good message used to alert veterans that they are eligible for COVID-19 vaccine and offer scheduling embedded within the text message.
Intervention: Behavioral economics (Behavioral)
Outcomes
Primary Outcomes
Vaccine appointments scheduled/completed
Time Frame: 7 days post randomization
% of first-dose vaccine appointments scheduled/vaccines completed
Secondary Outcomes
No secondary outcomes reported
Investigators
Linnaea Schuttner
Staff Physician
VA Puget Sound Health Care System