Saving a Life or Preventing a Death: the Effect of Message Framing on Blood Donation Among Rh Negative Donors
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Enrollment
- 2,074
- 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 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.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Health Services Research
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 60 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
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.
Arms & Interventions
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.
Intervention: Gain-frame SMS (Other)
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.
Intervention: Loss-frame SMS (Other)
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.
Intervention: Control SMS (Other)
Control group
Donors in this group were not received SMS reminders.
Outcomes
Primary Outcomes
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.
Secondary Outcomes
No secondary outcomes reported
Investigators
OUYANG Jian
MS
Guangzhou Blood Center