TITLE:
The Quality and Reliability of Short Videos about Totally Implantable Venous Access Port on Douyin and Bilibili: A Cross-Sectional Study
AUTHORS:
Junhao Huang, Handong Wan, Guohao Liu, Sihan Chen, Yuanyuan Zhang, Yanling Liu, Yanling Lai
KEYWORDS:
Bilibili, Digital Health Literacy, DISCERN, Douyin, Global Quality Score, Short Video, Totally Implantable Venous Access Port (TIVAP)
JOURNAL NAME:
Health,
Vol.18 No.5,
April
29,
2026
ABSTRACT: Objective: Short-video platforms have become major sources of totally implantable venous access port (TIVAP) information for the public. However, the quality and reliability of such content remain uncertain. Methods: We conducted a cross-sectional study. Using the Chinese keyword “Totally Implantable Venous Access Port” (输液港), we screened top-ranked videos on Douyin (TikTok China) and Bilibili. Two trained raters assessed overall quality using the Global Quality Score (GQS), reliability using a modified DISCERN (mDIS) instrument, source transparency using the JAMA benchmark criteria, and a synthesized SUM score. Uploaders were classified as Professionals and Non-Professionals. Independent t-tests and Mann-Whitney U tests were used for group comparisons, and Spearman’s test was utilized for correlation analysis. Results: A total of 178 videos were included (Bilibili n = 86, 48.31%; Douyin n = 92, 51.69%). Between the two platforms, significant differences were observed in JAMA score, Likes, Comments, Favorites, and Duration (all p 0.05). Correlation analysis revealed that engagement metrics (Likes and Comments) had no significant correlation with quality scores (SUM, GQS, JAMA, mDIS; p > 0.05), while Favorites and Duration showed weak to moderate positive correlations with quality. Conclusion: The quality of TIVAP short videos is highly dependent on the author’s professional background. While Professionals provide significantly higher quality and reliability, Non-Professional videos attract substantially more user engagement (Likes and Favorites). Popularity metrics are not valid proxies for health information quality, highlighting the urgent need to promote digital health literacy and optimize platform recommendation algorithms.