TY - JOUR AU - Toussaint, Philipp A AU - Renner, Maximilian AU - Lins, Sebastian AU - Thiebes, Scott AU - Sunyaev, Ali PY - 2022 DA - 2022/9/15 TI -社交媒体上直接面向消费者的基因检测:YouTube用户评论的主题建模和情感分析JO - JMIR信息流行病学SP - e38749 VL - 2 IS - 2 KW -直接面向消费者的基因检测KW -健康信息KW -社交媒体KW - YouTube KW -情感分析KW -主题建模KW -内容分析KW -在线健康信息KW -用户话语KW -信息流行病学AB -背景:随着直接面向消费者(DTC)基因检测能够自我负责地获取有关祖先、特征或健康的新信息，消费者经常转向社交媒体寻求帮助和讨论。YouTube是最大的视频社交媒体平台，提供了大量与DTC基因检测相关的视频。然而，这些视频评论部分的用户话语在很大程度上是未被探索的。目的:本研究旨在通过探讨YouTube上DTC基因检测相关视频的讨论主题和用户对这些视频的态度，解决用户在评论区对用户话语的了解不足的问题。方法:我们采用三步研究方法。首先，我们收集了YouTube上观看次数最多的248个DTC基因检测相关视频的元数据和评论。其次，我们使用词频分析、bigram分析和结构主题建模进行主题建模，以确定这些视频评论区讨论的主题。最后，我们使用Bing(二进制)、加拿大国家研究委员会(NRC)情感和9级情感分析来确定用户对这些DTC基因检测相关视频的态度，正如他们在评论中所表达的那样。 Results: We collected 84,082 comments from the 248 most viewed DTC genetic testing–related YouTube videos. With topic modeling, we identified 6 prevailing topics on (1) general genetic testing, (2) ancestry testing, (3) relationship testing, (4) health and trait testing, (5) ethical concerns, and (6) YouTube video reaction. Further, our sentiment analysis indicates strong positive emotions (anticipation, joy, surprise, and trust) and a neutral-to-positive attitude toward DTC genetic testing–related videos. Conclusions: With this study, we demonstrate how to identify users' attitudes on DTC genetic testing by examining topics and opinions based on YouTube video comments. Shedding light on user discourse on social media, our findings suggest that users are highly interested in DTC genetic testing and related social media content. Nonetheless, with this novel market constantly evolving, service providers, content providers, or regulatory authorities may still need to adapt their services to users' interests and desires. SN - 2564-1891 UR - https://infodemiology.www.mybigtv.com/2022/2/e38749 UR - https://doi.org/10.2196/38749 DO - 10.2196/38749 ID - info:doi/10.2196/38749 ER -