Motivating Type O- Blood Donors to Return

Study Overview
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Brief Summary
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This study develops a motivational interview and implementation intention intervention for blood donor retention and tests the efficacy of this new approach among first-time, Group O donors.

Detailed Description
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In this study the investigators will recruit first-time Group O- and O+ donors four weeks after their donation using the donor databases of New York Blood Center and Hoxworth Blood Center. Eligible donors will be contacted via email and invited to participate in the study. Interested donors will be randomly assigned to either the Intervention condition where they will receive a motivational interview and implementation intention intervention phone call or to the Control condition where they will receive a standard donor recruitment phone call. Outcome measures will be assessed before and after the telephone contact using online questionnaires, and donation attempts will be tracked for one year. The investigators will use survival analysis to examine the effects of this intervention on retention during this one-year follow-up. Path analyses will also be used to examine potential mediators of the intervention effect. The investigators hypothesis is that donors who receive the motivational interview and implementation intention intervention will have larger increases in positive donation attitudes and perceived behavioral control which will contribute to enhanced intention and donation attempts.

Official Title
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Motivating Type O- Blood Donors to Return

Conditions
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Blood Donors

Intervention / Treatment
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* Behavioral: Motivational Interview and Implementation Intention


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: donor with New York Blood Center or Hoxworth Blood Center one previous donation O- or O+ blood eligible to donate again

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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No

Study Plan
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How is the study designed?
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Design Details

Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Intervention<br>Donors randomly assigned to this group will receive a motivational interview and implementation intention intervention telephone call. | Behavioral: Motivational Interview and Implementation Intention<br>* Telephone call that includes motivational interviewing techniques and develops an implementation intention plan.<br>|
| No Intervention: Control<br>Donors randomly assigned to this group will receive a standard donor recruitment telephone call. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Repeat donation | number and timing of repeat donation attempts in one year following eligibility of donor return | 1 year from the date of next donor eligibility (i.e., 13 months post-intervention) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Donation attitude | questionnaire | 1 week pre- and 1 week post-intervention | 
| Donation subjective norm | questionnaire | 1 week pre- and 1 week post-intervention | 
| Donation perceived behavioral control | questionnaire | 1 week pre- and 1 week post-intervention | 
| Donation intention | questionnaire | 1 week pre- and 1 week post-intervention | 
| Donation decisional balance | questionnaire | 1 week pre- and 1 week post-intervention | 
| Donor identity | questionnaire | 1 week pre- and 1 week post-intervention | 
| Donation moral norm | questionnaire | 1 week pre- and 1 week post-intervention | 
| Donation anticipated regret | questionnaire | 1 week pre- and 1 week post-intervention | 
| Donation anxiety | questionnaire | 1 week pre- and 1 week post-intervention | 
| Donor self-efficacy (action and coping) | questionnaire | 1 week pre- and 1 week post-intervention | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Retention, Blood Donor Motivation