Mail Outreach To Increase Vaccination Acceptance Through Engagement
NCT ID: NCT02243774
Last Updated: 2017-07-12
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
228000 participants
INTERVENTIONAL
2014-09-30
2015-09-30
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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No letter
Individuals randomized to the control group who will not receive any of the four letters
No interventions assigned to this group
Core letter signed by Surgeon General
Individuals randomized to receive only a core letter signed by the Surgeon General
Core letter signed by Surgeon General
The core letter provides information about influenza and the risks associated with it, incorporating a number of behavioral insights. All four letters evaluated in this study will contain the same tops and bodies that are included in the core letter, but the signature and P.S. tag region will differ among the various intervention groups. In this intervention, the core letter is signed by and includes a picture of the Surgeon General. The letter ends after the signature line and the space beneath the signature line is left blank where a P.S. tag region could be appended.
Core letter signed by Director of the National Vaccine Program
Individuals randomized to receive only a core letter signed by the Director of the National Vaccine Program
Core letter signed by the Director of the National Vaccine Program
The core letter is signed by and includes a picture of the Director of the National Vaccine Program. The letter ends after the signature line and the space beneath the signature line is left blank where a P.S. tag region could be appended.
Core letter signed by Surgeon General + implementation prompt
Individuals randomized to receive a core letter signed by the Surgeon General with an implementation intention prompt added in an appended P.S. tag region below the signature line
Core letter signed by Surgeon General + implementation prompt
The core letter is signed by and includes a picture of the Surgeon General. Below the signature line of the core letter, an implementation intention prompt is provided in the P.S. tag region that invites the recipient to write in the day of week, month, day, and time at which he or she plans to get vaccinated.
Core letter signed by SG + enhanced implementation prompt
Individuals randomized to receive a core letter signed by the Surgeon General (SG) with an enhanced implementation intention prompt added in an appended P.S. tag region below the signature line
Core letter signed by SG + enhanced implementation prompt
The core letter is signed by and includes a picture of the Surgeon General (SG). Below the signature line of the core letter, an enhanced implementation intention prompt is provided in the P.S. tag region that prompts recipients to "decide now" - by checking one of two boxes - indicating they will or will not get vaccinated. The options use language that highlights the losses incumbent in refusing to vaccinate. In addition, an implementation intention prompt is embedded into the checkbox for indicating a choice to be vaccinated.
Interventions
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Core letter signed by Surgeon General
The core letter provides information about influenza and the risks associated with it, incorporating a number of behavioral insights. All four letters evaluated in this study will contain the same tops and bodies that are included in the core letter, but the signature and P.S. tag region will differ among the various intervention groups. In this intervention, the core letter is signed by and includes a picture of the Surgeon General. The letter ends after the signature line and the space beneath the signature line is left blank where a P.S. tag region could be appended.
Core letter signed by the Director of the National Vaccine Program
The core letter is signed by and includes a picture of the Director of the National Vaccine Program. The letter ends after the signature line and the space beneath the signature line is left blank where a P.S. tag region could be appended.
Core letter signed by Surgeon General + implementation prompt
The core letter is signed by and includes a picture of the Surgeon General. Below the signature line of the core letter, an implementation intention prompt is provided in the P.S. tag region that invites the recipient to write in the day of week, month, day, and time at which he or she plans to get vaccinated.
Core letter signed by SG + enhanced implementation prompt
The core letter is signed by and includes a picture of the Surgeon General (SG). Below the signature line of the core letter, an enhanced implementation intention prompt is provided in the P.S. tag region that prompts recipients to "decide now" - by checking one of two boxes - indicating they will or will not get vaccinated. The options use language that highlights the losses incumbent in refusing to vaccinate. In addition, an implementation intention prompt is embedded into the checkbox for indicating a choice to be vaccinated.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
66 Years
ALL
Yes
Sponsors
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Department of Health and Human Services
FED
Centers for Medicare and Medicaid Services
FED
United States Social and Behavioral Sciences Team
UNKNOWN
Brigham and Women's Hospital
OTHER
Responsible Party
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Niteesh K. Choudhry, MD, PhD
Associate Professor, Harvard Medical School
Principal Investigators
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Niteesh K Choudhry, MD, PhD
Role: PRINCIPAL_INVESTIGATOR
Brigham and Women's Hospital/Harvard Medical School
Locations
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Centers for Medicare & Medicaid Services
Baltimore, Maryland, United States
Countries
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Other Identifiers
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2014-P-001821
Identifier Type: -
Identifier Source: org_study_id
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