Comparative Tests of Flu Vaccination Phone Messages

Study Overview
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Brief Summary
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This project is a partnership between Emmi Solutions, a private company that delivers health promotion messages to employees of client organizations, and the University of Michigan and affiliated academic investigators. In particular, Emmi sends out pre-recorded and interactive telephone calls on behalf of their healthcare clients to promote influenza vaccination each Fall. The collaboration will design various scripts (based on established risk communication, behavior change, and behavioral economic principles) to be pre-recorded and sent out on these calls on a randomized basis (with approval by client organizations), with the number of arms to vary based on the size of each client's participant list (to ensure sufficient statistical power within each client's sample). Emmi will deliver the calls and track individual responses to questions posed during the call. Emmi will then provide a de-identified dataset to the academic research team for analysis to determine whether any scripts provided greater or lesser effects to people's their motivations to get a flu vaccination.

Official Title
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Comparative Tests of Flu Vaccination Phone Messages

Conditions
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Influenza, Human

Intervention / Treatment
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* Behavioral: Viral changes
* Behavioral: Protect others
* Behavioral: General intentions
* Behavioral: Behavioral intentions
* Behavioral: Accountability


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient of client organizations of Emmi Solutions Provided a phone number to their care team Exclusion Criteria: -

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Health Services Research
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Viral changes + General intentions<br>Script language discusses a) that previous years' shots do not protect against current year influenza (viral changes) and b) poses a general question asking whether the respondent intends to get a flu shot (general intentions). | Behavioral: Viral changes<br>* Telephone script language provided pre-questions regarding the fact that influenza viruses change each year<br>Behavioral: General intentions<br>* Question language asking about general interest in getting influenza vaccination<br>|
| Experimental: Viral changes + Behavioral intentions<br>Script language discusses a) that previous years' shots do not protect against current year influenza (viral changes) and b) poses a question asking when / where the respondent will get a flu shot (behavioral intention). | Behavioral: Viral changes<br>* Telephone script language provided pre-questions regarding the fact that influenza viruses change each year<br>Behavioral: Behavioral intentions<br>* Question language asking individual to make specific plans to be vaccinated<br>|
| Experimental: Viral changes + Accountability<br>Script language discusses a) that previous years' shots do not protect against current year influenza (viral changes) and b) poses a question that implies the patient's care team will be notified of intent to vaccinate (accountability to providers). | Behavioral: Viral changes<br>* Telephone script language provided pre-questions regarding the fact that influenza viruses change each year<br>Behavioral: Accountability<br>* Question language asking individual whether their care team can learn about their vaccination intentions<br>|
| Experimental: Protect others + General intentions<br>Script language discusses a) that getting the flu shot protects others who can get particularly sick (protect others) and b) poses a general question asking whether the respondent intends to get a flu shot (general intentions). | Behavioral: Protect others<br>* Telephone script language provided pre-questions emphasizing the need to protect vulnerable others<br>Behavioral: General intentions<br>* Question language asking about general interest in getting influenza vaccination<br>|
| Experimental: Protect others + Behavioral intentions<br>Script language discusses a) that getting the flu shot protects others who can get particularly sick (protect others) and b) poses a question asking when / where the respondent will get a flu shot (behavioral intention). | Behavioral: Protect others<br>* Telephone script language provided pre-questions emphasizing the need to protect vulnerable others<br>Behavioral: Behavioral intentions<br>* Question language asking individual to make specific plans to be vaccinated<br>|
| Experimental: Protect others + Accountability<br>Script language discusses a) that getting the flu shot protects others who can get particularly sick (protect others) and b) poses a question that implies the patient's care team will be notified of intent to vaccinate (accountability to providers). | Behavioral: Protect others<br>* Telephone script language provided pre-questions emphasizing the need to protect vulnerable others<br>Behavioral: Accountability<br>* Question language asking individual whether their care team can learn about their vaccination intentions<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Vaccination intentions (Time 1) | Question (language being manipulated) asking whether respondent intends to vaccinate | Day 1 (Assessed during the intervention telephone call) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Documented influenza vaccination | Documentation (when available from Emmi Solutions' clients) via clients' employee records that influenza vaccination occurred | Within 6 months / during 2017-2018 influenza season |