NCT03741413

The Effect of Message Framing on Blood Donation-Study 1

Saving a Life or Preventing a Death: the Effect of Message Framing on Blood Donation Among Rh Negative Donors

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 2,074 (actual)
• Sponsor: Guangzhou Blood Center · Other Government
• Sex: All
• Age: 18 Years – 60 Years
• Healthy volunteers: Not accepted

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.

Conditions

• Rh Negative Blood Donor

Interventions

Type	Name	Description
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.
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.
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.

Timeline

• Start date: 2018-07-18
• Primary completion: 2018-10-18
• Completion: 2018-10-18
• First posted: 2018-11-14
• Last updated: 2020-05-05

Locations

1 site across 1 country: China