Blood Donation
Conditions
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.
Interventions
OTHERGain-framed SMS message
Emergency recruitment cell phone short messages that emphasizing donating blood can save patients' lives were sent to donors in this group.
OTHERLoss-framed SMS message
Emergency recruitment cell phone short messages emphasizing that donating blood can prevent patients from death were sent to donors in this group.
OTHERInformation SMS message
Emergency recruitment cell phone short messages that only mentioning the low Rh-negative blood stockpile were sent to donors in this group.
Sponsors
Guangzhou Blood Center
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Subject)
Masking description
Participant did not know the difference between the three message.
Eligibility
Sex/Gender
ALL
Age
18 Years to 60 Years
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Re-donation rate | 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. |
Countries
China
Contacts
Primary ContactJian OU-YANG
Outcome results
None listed