TY -的AU -罗,陈盟- Ji,开元AU -唐玉龙AU - Du,志远PY - 2021 DA - 2021/8/27 TI -探索专业人员和非专业人员之间的表达差异对COVID-19疫苗:文本挖掘方法乔- J地中海互联网Res SP - e30715六世- 23 - 8 KW - COVID-19 KW -疫苗KW -乎KW -结构性主题建模KW -医学专业千瓦俗人KW -不良反应KW -疫苗接种KW -疫苗有效性KW - AB疫苗研发背景:新冠肺炎疫情仍在全球蔓延。到目前为止，COVID-19疫苗是遏制传染和实现群体免疫的最有希望的措施。然而，公众接种疫苗的意愿并不理想。医疗专业人员和门外汉之间有明确的界限。虽然大多数专业人士积极推动疫苗接种运动，但一些非专业人士对COVID-19疫苗表现出怀疑、犹豫甚至反对。目的:本研究旨在采用文本挖掘方法，研究COVID-19疫苗背景下专业人员和非专业人员之间的表达差异和主题差异。方法:我们从中国问答论坛知乎收集了关于COVID-19疫苗的65个过滤问题下的3196个答案。根据问题的内容和描述，将问题分为5类:不良反应、疫苗接种、疫苗有效性、疫苗的社会影响和疫苗开发。受访者还被手动分为两组:专业人士和外行。 Automated text analysis was performed to calculate fundamental expression characteristics of the 2 groups, including answer length, attitude distribution, and high-frequency words. Furthermore, structural topic modeling (STM), as a cutting-edge branch in the topic modeling family, was used to extract topics under each question category, and thematic disparities were evaluated between the 2 groups. Results: Laypeople are more prevailing in the COVID-19 vaccine–related discussion. Regarding differences in expression characteristics, the professionals posted longer answers and showed a conservative stance toward vaccine effectiveness than did laypeople. Laypeople mentioned countries more frequently, while professionals were inclined to raise medical jargon. STM discloses prominent topics under each question category. Statistical analysis revealed that laypeople preferred the “safety of Chinese-made vaccine” topic and other vaccine-related issues in other countries. However, the professionals paid more attention to medical principles and professional standards underlying the COVID-19 vaccine. With respect to topics associated with the social implications of vaccines, the 2 groups showed no significant difference. Conclusions: Our findings indicate that laypeople and professionals share some common grounds but also hold divergent focuses toward the COVID-19 vaccine issue. These incongruities can be summarized as “qualitatively different” in perspective rather than “quantitatively different” in scientific knowledge. Among those questions closely associated with medical expertise, the “qualitatively different” characteristic is quite conspicuous. This study boosts the current understanding of how the public perceives the COVID-19 vaccine, in a more nuanced way. Web-based question and answer forums are a bonanza for examining perception discrepancies among various identities. STM further exhibits unique strengths over the traditional topic modeling method in statistically testing the topic preference of diverse groups. Public health practitioners should be keenly aware of the cognitive differences between professionals and laypeople, and pay special attention to the topics with significant inconsistency across groups to build consensus and promote vaccination effectively. SN - 1438-8871 UR - //www.mybigtv.com/2021/8/e30715 UR - https://doi.org/10.2196/30715 UR - http://www.ncbi.nlm.nih.gov/pubmed/34346885 DO - 10.2196/30715 ID - info:doi/10.2196/30715 ER -