Message Framing on Recruiting Rh-D Negative Blood Donors
Effects of Message Framing on Recruiting Rh-D Negative Blood Donors in an Emergency Situation
1 other identifier
interventional
1,082
1 country
1
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 22, 2020 blood stockpile of O-negative and A-negative in Guangzhou Blood Center reached the warning line, and we took measures for emergency recruitment. O-negative and A-negative blood donors whose last donation dates were between January 1, 2018 and December 31, 2019 were identified and randomly assigned to four groups. Three different recruitment text messages were send three groups. We observed the re-donation rates among four groups within one week.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jul 2020
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 21, 2020
CompletedStudy Start
First participant enrolled
July 22, 2020
CompletedFirst Posted
Study publicly available on registry
July 24, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 29, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
July 30, 2020
CompletedJuly 28, 2020
July 1, 2020
7 days
July 21, 2020
July 24, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Re-donation rate
Intention-to-treat were applied. Re-donation rate was defined as the number of donors in each group divided by donors who re-donated within 7 days.
7 days
Study Arms (4)
Gain-frame Message
EXPERIMENTALShort messaging service (SMS) message: Dear group O/A Rh-D negative blood donor: Hello! The inventory of group O/A Rh-D negative blood product is low at present, but patients with such blood group are in urgent need of blood. If you can, please consider donating blood again to save lives. Thank you for your support. Please bring your identification (ID) card and show this message to our staff. Thank you.
Loss-frame Message
EXPERIMENTALSMS message: Dear group O/A Rh-D negative blood donor: Hello! The inventory of group O/A Rh-D negative blood product is low at present, but patients with such blood group are in urgent need of blood. If you can, please consider donating blood again to prevent the loss of life. Thank you for your support. Please bring your ID card and show this message to our staff. Thank you.
Information Message
EXPERIMENTALSMS message: Dear group O/A Rh-D negative blood donor: Hello! The inventory of group O/A Rh-D negative blood product is low at present, if you can, please consider donating blood again. Thank you for your support. Please bring your ID card and show this message to our staff. Thank you.
Control group
NO INTERVENTIONDonors in this group were not received SMS reminders.
Interventions
Emergency recruitment cell phone short messages that emphasizing donating blood can save patients' lives were sent to donors in this group.
Emergency recruitment cell phone short messages emphasizing that donating blood can prevent patients from death were sent to donors in this group.
Emergency recruitment cell phone short messages that only mentioning the low Rh-negative blood stockpile were sent to donors in this group.
Eligibility Criteria
You may qualify if:
- \- O and A Rh- negative blood donors Last donations were between January 1, 2018 and December 31, 2019
You may not qualify if:
- \- With an obviously invalid phone number Serological results of the last donation were positive
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Guangzhou Blood Center
Guangzhou, Guangdong, 510095, China
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Masking Details
- Participant did not know the difference between the three message.
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 21, 2020
First Posted
July 24, 2020
Study Start
July 22, 2020
Primary Completion
July 29, 2020
Study Completion
July 30, 2020
Last Updated
July 28, 2020
Record last verified: 2020-07