Tiktok与Bilibili上血管性痴呆的短视频质量和可靠性：横断面内容分析研究

Quality and Reliability of Vascular Dementia-Related Short Videos on TikTok and Bilibili: A Cross-Sectional Content Analysis

摘要: 目的：我们的研究主要评估TikTok与Bilibili平台发布的血管性痴呆相关的视频的内容特征、质量及可靠性。方法：以“血管性痴呆”为关键词进行视频检索并进行筛选。采用GQS、mDISCERN、JAMA及VIQI评价视频质量与可靠性，记录视频时长及互动指标，并进行组间比较及相关性分析。结果：共纳入157个视频(TikTok 80个，Bilibili 77个)。TikTok视频点赞及评论数更高(P < 0.001)，Bilibili视频时长更长(P < 0.001)，且GQS、mDISCERN及VIQI评分更高(P < 0.05)。专业型医护人员视频质量最高(P < 0.05)。质量评价指标间呈显著正相关(r = 0.79~0.90)，互动指标与质量评分无显著相关性。结论：我们的研究表明，短视频平台健康信息传播存在平台及来源差异。TikTok传播效果更强，而Bilibili内容质量更高。

Abstract: Objective: Our study mainly evaluated the content characteristics, quality and reliability of videos related to vascular dementia posted on TikTok and Bilibili platforms. Methods: Videos were retrieved and screened using the keyword “vascular dementia”. The quality and reliability of the videos were evaluated using GQS, mDISCERN, JAMA and VIQI. Video duration and interaction indicators were recorded and compared between groups, and also correlation analysis was conducted. Results: A total of 157 videos were included (80 on TikTok and 77 on Bilibili). Videos on TikTok received more likes and comments (P < 0.001), while videos on Bilibili were longer (P < 0.001) and had higher GQS, mDISCERN and VIQI scores (P < 0.05). Videos by professional medical staff had the highest quality (P < 0.05). There was a significant positive correlation between quality evaluation indicators (r = 0.79~0.90), while interaction indicators were not significantly correlated with quality scores. Conclusion: Our study shows that there are differences in the dissemination of health information on short video platforms in terms of platform and source. TikTok has a stronger dissemination effect, while Bilibili has higher content quality.