Web-Based Short Video Intervention and Short Message Comparison of Repeat Blood Donation Behavior Based on an Extended Theory of Planned Behavior: Prospective Randomized Controlled Trial Study

Although blood is an indispensable and important resource for clinical treatment, an imbalance between supply and demand may occur as the population ages and diversifies. Studies indicate that repeat blood donors are safe blood sources because of their voluntary blood donation education and frequent...

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Bibliographic Details
Published in:Journal of medical Internet research 2022-12, Vol.24 (12), p.e37467-e37467
Main Authors: Hu, Qiuyue, Hu, Wei, Han, Wenjuan, Pan, Lingling
Format: Article
Language:English
Subjects:
Analysis
Anxiety
Behavior
Blood & organ donations
Blood banks
Blood Donation
Blood donors
Chi-square test
Clinical trials
Cognition
Donations
Donors
Humans
Identity
Imbalance
Intention
Internet
Internet videos
Intervention
Male
Medical screening
Medical treatment
Original Paper
Perceived control
Prospective Studies
Supply & demand
Text messaging
Theory of Planned Behavior
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Summary:Although blood is an indispensable and important resource for clinical treatment, an imbalance between supply and demand may occur as the population ages and diversifies. Studies indicate that repeat blood donors are safe blood sources because of their voluntary blood donation education and frequent blood screening. However, the high rate of reduction in the number of first-time voluntary blood donors and low rate of repeated blood donation are common problems worldwide. This study aimed to evaluate the effect of an intervention in nonregular blood donors using web-based videos and SMS text messages, in which the former was guided by the extended theory of planned behavior, to discover effective intervention methods to improve repeat blood donation rates among nonregular blood donors. A total of 692 nonregular blood donors in Zhejiang province were randomly divided into intervention and control groups. The control group received regular, short reminder messages for a 6-month period, whereas the intervention group received web-based videos on the WeChat platform. The intervention group was guided by an extended theory of planned behavior, which included 9 factors: the respondents' attitude, subjective behavioral norms, perceived behavioral control, the willingness to donate blood, outcome expectations, self-identity, blood donation-related anxiety, cognition of the blood donation environment, and previous blood donation experience. The intervention group was divided into 2 stages: those with an intervention at 3 months and those with a follow-up 3 months later. After 6 months, the redonation rate was evaluated for the 2 groups, and the scale in the intervention group was determined both before and after the intervention. A t test, chi-square test, logistic stepwise regression, and ANOVA were performed. The intervention group's redonation rate was 16.14%, which was significantly higher than the control group's redonation rate of 5.16%; P
ISSN:1438-8871
1439-4456
1438-8871
DOI:10.2196/37467