The Effect of Fact Versus Myth Messages on Receipt of Influenza Vaccination

Not Applicable

Completed

• Conditions: Influenza Vaccination
• Interventions: Behavioral: Fact and Myth Educational Message; Behavioral: Fact, Myth, Why Educational Message; Behavioral: Fact Only Education Message; Behavioral: Control Educational Message

• Registration Number: NCT01009645
• Lead Sponsor: Northwestern University

Brief Summary

The purpose of this study is to evaluate whether message design of educational materials increases vaccination rates among participants.

Detailed Description

Not available

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2009-09
• Study First Submitted: 2009-11-06
• Study First Submitted QC: 2009-11-06
• Study First Posted: 2009-11-09
• Primary Completion: 2010-04
• Study Completion: 2010-04
• Results First Submitted: 2012-04-25
• Results First Submitted QC: 2012-08-20
• Results First Posted: 2012-09-18
• Status Verified: 2023-10
• Last Update Submitted: 2023-10-25
• Last Update Posted: 2023-10-30

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 125

Inclusion Criteria

• Participant must have a scheduled appointment at least 6 weeks in advance in either the GIM or Geriatrics clinics at NMFF.
• Participant must be a patient of Northwestern Medical Faculty Foundation.
• Participant does not intend to receive the influenza vaccine.

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Exclusion Criteria

• Participant has a diagnosis of Alzheimer's Disease or Dementia
• Participant has received an influenza vaccination during either the last influenza season or the current.
• The scheduled visit is the participant's first time being seen by this doctor (appointment is to establish care in the clinic).

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Fact and Myth	Fact and Myth Educational Message	The educational material seen by this arm will contain facts and myths only.
Fact, Myth, Why	Fact, Myth, Why Educational Message	The educational material seen by this arm will contain myths, facts, and refutations of the myths.
Fact Only	Fact Only Education Message	The educational message used will contain facts only.
Control	Control Educational Message	This arm will receive fact/myth educational materials originally developed and used by the CDC.

Primary Outcome Measures

Name	Time	Method
Influenza Vaccination	1 week following randomization	The primary outcome is receipt of influenza vaccination at appointment directly following the post-test. A pre-test was completed by participants during a telephone interview that occurred approximately two weeks prior to a scheduled clinic appointment. The post-test was completed via an in-person interview by participants immediately prior to their scheduled appointment. That is, the participants met with the Research Assistant, completed the post-test, and then proceeded to see their physician for a previously scheduled office visit.

Secondary Outcome Measures

Name	Time	Method
Recall Accuracy	1 week following receipt of message	Participants were given 8 statements about the flu/flu shot and asked to recall if they had seen the statement on the message they received via FedEx. Participants responded that statement had been "presented as a fact," "presented as a myth," "presented, but I don't recall if it was a fact or a myth," or "not presented." Participants scored 1 for each correct answer; 0 for each incorrect answer or for response "I don't recall." Recall accuracy was calculated among each message format, range for recall accuracy was 0 - 8 with 0 indicating no correct answers and 8 representing 100% accuracy. Thus units of measurement are "units on a scale" to represent participant scores out of 8 on the recall items.

Trial Locations

Locations (1)

Northwestern Medical Faculty Foundation General Internal Medicine and Geriatric Clinics; 🇺🇸 Chicago, Illinois, United States