Effects of Message Framing on Recruiting Rh-D Negative Blood Donors in an Emergency Situation
Trial Snapshot
- Phase
- Not Applicable
- Sponsor
- Enrollment
- 1,082
- Locations
- 1
- Primary Endpoint
- Re-donation rate
Study Overview
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.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Other
- Masking
- Single (Participant)
Masking Description
Participant did not know the difference between the three message.
Eligibility Criteria
- Ages
- 18 Years to 60 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •- O and A Rh- negative blood donors Last donations were between January 1, 2018 and December 31, 2019
Exclusion Criteria
- •- With an obviously invalid phone number Serological results of the last donation were positive
Arms & Interventions
Control group
Donors in this group were not received SMS reminders.
Gain-frame Message
Short 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.
Intervention: Gain-framed SMS message (Other)
Loss-frame Message
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 prevent the loss of life. Thank you for your support.
Please bring your ID card and show this message to our staff. Thank you.
Intervention: Loss-framed SMS message (Other)
Information Message
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, 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.
Intervention: Information SMS message (Other)
Outcomes
Primary Outcomes
Re-donation rate
Time Frame: 7 days
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.
Secondary Outcomes
No secondary outcomes reported