Abstract / Summary
Abstract Background Cirrhosis is a major global public health burden, with a high prevalence in China. Short video platforms such as TikTok and Bilibili have become key channels for disseminating cirrhosis-related health information, but concerns remain regarding the quality and reliability of such content. Objective This study aimed to systematically evaluate the quality, reliability, and user engagement of cirrhosis-related short videos on TikTok and Bilibili, providing insights for optimizing health communication. Methods A cross-sectional study was conducted. Using "cirrhosis" as the keyword, 157 eligible videos (74 from TikTok, 83 from Bilibili) were selected. Video quality and reliability were assessed using the Global Quality Score (GQS), modified DISCERN (mDISCERN), and JAMA scoring tools. Demographic characteristics, content categories, and user engagement metrics were analyzed with nonparametric tests and correlation analysis. Results The median GQS, mDISCERN, and JAMA scores were 3 (IQR 3–4), 2 (IQR 2–2), and 3 (IQR 3–3), respectively. TikTok videos had higher user engagement (median likes: 1987 vs. 51) but shorter duration (57s vs. 328s) and lower GQS (3 vs. 4) than Bilibili. Videos by hepatologists and other specialists showed significantly higher quality scores than those by TCM practitioners and non-professionals. No significant correlation was found between user engagement and video quality. Conclusions Cirrhosis-related short videos on TikTok and Bilibili have suboptimal scientific quality. Bilibili provides more in-depth content, while TikTok has higher popularity. Professional background of uploaders is a key determinant of content quality. Platforms should strengthen qualification review and content supervision to improve health information equity.