@文章{info:doi/10.2196/15551，作者=“郑，琪金和吕，Carrie和叶，Flora Wai Lam和叶宝荣，Paul Siu Fai”，标题=“针对学生自杀危机发布的YouTube视频的类型和影响:社交媒体度量和内容分析”，期刊=“JMIR Ment Health”，年=“2021”，月=“Jun”，日=“18”，卷=“8”，数=“6”，页=“e15551”，关键词=“自杀;预防自杀;社交媒体;infodemiology;互联网;数字健康;YouTube;影响评价;背景:YouTube上有与自杀有关的视频，但它们的特点和影响很少被研究。目的:本研究旨在研究2015-2016学年期间，针对香港学生突然大量自杀事件发布的YouTube视频，并评估这些视频的影响。 Methods: Keyword search was performed on YouTube, and relevant videos were identified. Video typology was examined through content analysis, specifically grouping the videos by who uploaded the videos, what presentation formats were used in the videos, whether the videos were originally created by the uploaders, and whether the videos disclosed the uploaders' personal experiences with suicide. Impacts of the videos were assessed in terms of reach (measured by view count), engagement (measured by comment count), and insights (measured as to what extent the comments to each video could reveal personal suicide risk and attitude toward help-seeking). Statistical analysis was conducted to compare the impacts of different types of videos. The 7 most impactful videos that were originally created by the YouTubers were selected for further analysis. They were compared with 7 videos uploaded by the same YouTubers right before the student suicide videos and 7 right after the student suicide videos. The comparison focused on their impacts and the network structure of the comments to those videos. Results: A total of 162 relevant YouTube videos were identified. They were uploaded by 7 types of stakeholders, and the most common format was one person talking to the camera. A total of 87.0{\%} (141/162) of the videos were originally created by the uploaders and only 8.0{\%} (13/162) of the videos disclosed uploader personal experiences with suicide. The uploader profiles being popular or top YouTubers and the video containing disclosure of the uploader's personal experiences were found to be significantly correlated with greater impacts (P<.001). Focusing on the 7 most impactful original videos, it is found that those videos generated more engagement, especially more interactions between the viewers, and more insights than regular videos uploaded by the same YouTubers. Conclusions: When responding to a youth suicide crisis, videos made by key opinion leaders on YouTube sharing their own experiences of overcoming suicide risks could generate significant positive impacts. These types of videos offer a precious opportunity to craft online campaigns and activities to raise suicide prevention awareness and engage vulnerable youth. ", issn="2368-7959", doi="10.2196/15551", url="https://mental.www.mybigtv.com/2021/6/e15551/", url="https://doi.org/10.2196/15551" }