%0期刊文章%@ 1438-8871 %I JMIR出版物%V 22%卡塔尔世界杯8强波胆分析 N 11% P e22152% T中国社交媒体用户在COVID-19大流行期间表达的担忧:新浪微博微博数据内容分析%A王，%A周俊泽，%A张颖，%A Evans,Richard %A朱成燕%+华中科技大学医学与健康管理学院，武汉硚口区航空路13号，430074,86 13397110378，weizhanghust@hust.edu.cn %K冠状病毒%K COVID-19 %K社交媒体%K公共卫生%K新浪微博%K舆论%K公民关注%D 2020 %7 26.11.2020 %9原创论文%J J医学互联网决议%G英文%X背景:COVID-19大流行造成了一场全球健康危机，正在影响全球经济和社会。在充满不确定性和意外变化的时代，人们将社交媒体平台作为沟通工具和主要信息来源。Twitter和新浪微博等平台允许社区分享讨论和情感支持;它们在个人、政府和组织之间交换信息和表达意见方面也发挥着重要作用。然而，研究大流行期间社交媒体用户表达的主要担忧的研究有限。目的:本研究旨在研究新冠肺炎疫情期间，中国最大的社交媒体平台新浪微博上公民提出和讨论的主要问题。方法:我们使用网络爬虫工具和一组预定义的搜索词(新型冠状病毒肺炎、新型冠状病毒和COVID-19)来调查新浪微博用户提出的担忧。收集2019年12月1日至2020年7月32日期间发布的微博的文本信息和元数据(点赞数、评论数、转发数、发布时间和发布地点)。 After segmenting the words of the collected text, we used a topic modeling technique, latent Dirichlet allocation (LDA), to identify the most common topics posted by users. We analyzed the emotional tendencies of the topics, calculated the proportional distribution of the topics, performed user behavior analysis on the topics using data collected from the number of likes, comments, and retweets, and studied the changes in user concerns and differences in participation between citizens living in different regions of mainland China. Results: Based on the 203,191 eligible microblog posts collected, we identified 17 topics and grouped them into 8 themes. These topics were pandemic statistics, domestic epidemic, epidemics in other countries worldwide, COVID-19 treatments, medical resources, economic shock, quarantine and investigation, patients’ outcry for help, work and production resumption, psychological influence, joint prevention and control, material donation, epidemics in neighboring countries, vaccine development, fueling and saluting antiepidemic action, detection, and study resumption. The mean sentiment was positive for 11 topics and negative for 6 topics. The topic with the highest mean of retweets was domestic epidemic, while the topic with the highest mean of likes was quarantine and investigation. Conclusions: Concerns expressed by social media users are highly correlated with the evolution of the global pandemic. During the COVID-19 pandemic, social media has provided a platform for Chinese government departments and organizations to better understand public concerns and demands. Similarly, social media has provided channels to disseminate information about epidemic prevention and has influenced public attitudes and behaviors. Government departments, especially those related to health, can create appropriate policies in a timely manner through monitoring social media platforms to guide public opinion and behavior during epidemics. %M 33151894 %R 10.2196/22152 %U //www.mybigtv.com/2020/11/e22152/ %U https://doi.org/10.2196/22152 %U http://www.ncbi.nlm.nih.gov/pubmed/33151894