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The Effect of Message Framing on Blood Donation-Study 1

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ClinicalTrials.gov Identifier: NCT03741413
Recruitment Status : Completed
First Posted : November 14, 2018
Last Update Posted : November 14, 2018
Sponsor:
Information provided by (Responsible Party):
OUYANG Jian, Guangzhou Blood Center

Brief Summary:
Rh negative blood group is a rare blood group in China, as it only accounts for 0.3-0.4 percent of the Han population. Therefore, low inventory is often found in blood collection and supply agencies in many regions in China. On July 18, 2018 blood stockpile of O-negative and B-negative in Guangzhou Blood Center reached the warning line, and we took measures for emergency recruitment. O-negative and B-negative blood donors whose last donation dates were between January 1, 2015 and December 31, 2017 were identified and randomly assigned to three groups. Three different recruitment text messages were send to these groups respectively. At the same time, A-negative and AB-negative blood donors were marked as control group. We observed the re-donation rates among four groups within three months.

Condition or disease Intervention/treatment Phase
Rh Negative Blood Donor Other: Gain-frame SMS Other: Loss-frame SMS Other: Control SMS Not Applicable

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 2067 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Health Services Research
Official Title: Saving a Life or Preventing a Death: the Effect of Message Framing on Blood Donation Among Rh Negative Donors
Actual Study Start Date : July 18, 2018
Actual Primary Completion Date : October 18, 2018
Actual Study Completion Date : October 18, 2018

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Experimental: Gain-frame SMS
SMS messages "Dear Rh negative blood donors: Hello! As the Rh negative O/B blood stockpile is low now, but patients who are this blood type are in urgent need. If you are available, we hope that you can offer a helping hand to save their lives. Thank you for your support." were send to donors in this group.
Other: Gain-frame SMS
Emergency recruitment cell phone short messages that emphasizing donating blood can save patients' lives were sent to donors in this group.

Experimental: Loss-frame SMS
SMS messages "Dear Rh negative blood donors: Hello! As the Rh negative O/B blood stockpile is low now, but patients who are this blood type are in urgent need. If you are available, we hope that you can offer a helping hand to prevent them from death. Thank you for your support." were send to donors in this group.
Other: Loss-frame SMS
Emergency recruitment cell phone short messages emphasizing that donating blood can prevent patients from death were sent to donors in this group.

Experimental: Control SMS
SMS messages "Dear Rh negative blood donors: Hello! As the Rh negative O/B blood stockpile is low now, but patients who are this blood type are in urgent need. If you are available, we hope that you can donate blood again. Thank you for your support." were send to donors in this group.
Other: Control SMS
Emergency recruitment cell phone short messages that only mentioning the low Rh-negative blood stockpile were sent to donors in this group.

No Intervention: Control group
Donors in this group were not received SMS reminders.



Primary Outcome Measures :
  1. Re-donation rate [ Time Frame: 3 months ]
    Intention-to-treat were applied. Re-donation rate was defined as the number of donors in each group devided by donors who re-donated within 3 months.



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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Rh- negative blood donors whose last donations were between January 1, 2015 and December 31, 2017.

Exclusion Criteria:

  • Donors with an obviously invalid phone number. Donors whose serological results of the last donation were positive.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03741413


Locations
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China, Guangdong
Guangzhou Blood Center
Guangzhou, Guangdong, China, 510095
Sponsors and Collaborators
Guangzhou Blood Center

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Responsible Party: OUYANG Jian, MS, Guangzhou Blood Center
ClinicalTrials.gov Identifier: NCT03741413     History of Changes
Other Study ID Numbers: Message framing effect
First Posted: November 14, 2018    Key Record Dates
Last Update Posted: November 14, 2018
Last Verified: November 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No