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Blood or buzz? Decoding the quality of CBC-related short videos on Chinese platforms
Jianbo Xu1, Ying Gao2, Xinyi Xu2
1Clinical Laboratory, Jinhua Maternal and Child Health Care Hospital, Jinhua, China.
Insights
Short videos on complete cell count (CBC) in China show moderate quality and low reliability, with less than half meeting high-quality standards. Healthcare professionals
Area of Science:
- Medical Diagnostics
- Public Health Communication
- Digital Health Literacy
Background:
- The complete cell count (CBC) is a critical diagnostic test for various diseases, including anemia, infections, and blood disorders.
- China faces increasing demand for health information due to an aging population and rising chronic disease rates.
- Short videos are a prevalent medium for medical information dissemination in China.
Purpose of the Study:
- To evaluate the quality and credibility of short videos discussing complete cell count (CBC) on Chinese platforms.
- To assess the comprehensiveness and reliability of CBC information presented in Chinese short videos.
- To identify factors influencing the quality of medical information in short videos.
Main Methods:
- Searched Douyin, Bilibili, and Rednote for CBC popularization videos.
- Analyzed 242 retrieved videos for author information and content quality using Global Quality Score and Modified DISCERN tools.
- Conducted descriptive analysis of platforms and publishers, and Spearman's correlation for video information and quality.
Main Results:
- Nearly 50% of videos met high-quality criteria, with only 28.9% meeting reliability standards.
- Videos by healthcare professionals demonstrated superior content comprehensiveness, reliability, and overall quality compared to non-professionals.
- Video production length positively correlated with quality, while likes and comments did not show significant correlation.
Conclusions:
- Short videos on CBC in China exhibit significant deficiencies in quality and reliability.
- Viewers should exercise caution when consuming CBC information from short videos.
- Videos from medical professionals are more instructive, and strategies are needed to improve overall medical information quality on these platforms.
Background:
The complete cell count (CBC) is a fundamental diagnostic tool in clinical practice and is essential for screening and managing diseases such as anemia, infections, and malignant blood disorders. In China, a rapidly aging population and a growing burden of chronic diseases have increased the demand for accessible health knowledge resources. Short videos have now become a popular channel for medical information dissemination. Therefore, this study aimed to assess the overall quality and credibility of videos about CBC in China.
Objective:
The aim of this study was to assess the information quality of CBC-related videos on short video sharing platforms in China.
Methods:
We searched for short videos that popularize the main knowledge of CBC posted on three short video platforms in China that are currently accessed with a large amount of information: Douyin, Bilibili, and Rednote. A total of 242 relevant videos were retrieved, and we collected, processed, and analyzed the authors and basic information of all videos. The quality and reliability of their contents were assessed by using the Global Quality Score scale, the Modified DISCERN Medical Video Quality Evaluation Tool. Subsequently, short video platforms as well as video publishers were analyzed and compared descriptively as a whole. Potential correlations between general video information and video quality and reliability were analyzed by Spearman's correlation coefficient.
Results:
The quality of online videos provided by short video platforms showed a moderate level of quality (just 49.5% met the high-quality level criterion), and the completeness of their content, as well as their reliability was average (only 28.9% of videos met the reliability criterion). Further results on group comparisons showed that videos from healthcare professionals were better than those from non-healthcare professionals in terms of content comprehensiveness, reliability, and quality. Additionally, we observed a positive correlation between the production length of the video and video quality; however, there was no significant correlation between video likes and comments, etc., and video quality.
Conclusion:
The results of this study suggest that the overall quality and reliability of short videos about CBC-related content in current short video platforms are still significantly deficient. It is recommended that viewers should treat this content with caution. Among them, videos posted from medical personnel are more instructive. Nevertheless, video-based popularization of medical knowledge still holds promise. The overall quality and reliability of medical information shared on short video platforms can be improved by implementing appropriate strategies.
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