Quality assessment of spinal cord injury-related health information on short-form video platforms: Cross-sectional content analysis of TikTok, Kwai, and BiliBili.
Yujie Zhang, Ze-Ning Huang, Tong Ye, Yilin Teng, Baicheng Wan, Jianhua Huang, Gaofeng Zeng, Shaohui Zong
Abstract
Background: Spinal cord injury (SCI) severely affects patients' quality of life. With the rise of short video platforms, they have become important sources of health information, yet few studies have assessed the quality of SCI-related content on these platforms. Objective: This study aimed to analyze the content and quality of SCI-related videos on three major short video platforms. Material and Methods: This study collected SCI-related short videos published between 28 March and 10 April 2025 on three platforms: BiliBili, Kwai, and TikTok. After strict screening (removing advertisements, duplicates, and irrelevant content), 251 valid samples were finally included. To minimize the influence of platform recommendation algorithms, the study used newly registered accounts to conduct standardized searches with "spinal cord injury" as the uniform search term. Video quality was assessed using four methods: Journal of the American Medical Association (JAMA), global quality scale (GQS), modified DISCERN, and patient education materials assessment tool. Two staff members (Z-SH and Z-GF) independently scored all videos. When their ratings differed by more than 15%, an expert (TY) made the final decision. Results: = 0.49). Conclusion: This cross-platform comparative study reveals significant disparities in content quality among SCI-related videos on three leading short video platforms. Despite diverse video formats, the overall quality and reliability remain suboptimal.