Measuring vaccine confidence: analysis of data obtained by a media surveillance system used to analyse public concerns about vaccines
Measuring vaccine confidence: analysis of data obtained by a media surveillance system used to analyse public concerns about vaccines
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DOI：
10.1016/s1473-3099(13)70108-7
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发表时间：
2013-07-01
影响因子：
56.3
通讯作者：
Madoff, Lawrence C.
中科院分区：
文献类型：
--
作者：
Larson, Heidi J.;Smith, David M. D.;Madoff, Lawrence C.
随着新的沟通模式加速信息共享，疫苗舆论的强度、传播和影响正在增长，这导致了疫苗犹豫、拒绝和疾病爆发。我们的目标是开发现有监测系统的新应用，以发现和预防疫苗问题的早期迹象。我们还旨在开发一种类型的关注和一种方法来评估每个concerns.Methods的优先级的疫苗信心项目，媒体报道（如，在线artides，博客，政府报告）的初步研究后，获得使用HealthMap自动数据收集系统，适应于监测有关疫苗，疫苗接种计划，疫苗可预防的疾病的在线报告。任何不符合纳入标准的报告--任何关于人类疫苗或疫苗接种活动或项目的参考资料都可以在网上获得--都将从分析中删除。对报告的内容进行手动分析，并按关注点、疫苗、疾病、地点和报告来源以及对疫苗的总体积极或消极情绪进行分类。然后根据所报告事件的严重性和事件发生时间给予优先级。我们使用描述性统计分析收集的数据在一个为期1年的时间内，经过改进的搜索条件和过程已经made.Findings我们分析了数据从10 380份报告（来自144个国家）之间获得的2011年5月1日，2012年4月30日。7171份（69%）含有阳性或中性内容，3209份（31%）含有阴性内容。在负面报告中，1977份（24%）与疫苗计划和疾病爆发的影响有关; 1726份（21%）与信念，意识和看法有关; 1371份（16%）与疫苗安全性有关; 1336份（16%）与疫苗交付计划有关。我们能够按国家和疫苗类型分列数据，并在疫苗问题高度关注的特定地区监测事件随时间和地点的演变。
Background The intensity, spread, and effects of public opinion about vaccines are growing as new modes of communication speed up information sharing, contributing to vaccine hesitancy, refusals, and disease outbreaks. We aimed to develop a new application of existing surveillance systems to detect and characterise early signs of vaccine issues. We also aimed to develop a typology of concerns and a way to assess the priority of each concern.Methods Following preliminary research by The Vaccine Confidence Project, media reports (eg, online artides, blogs, government reports) were obtained using the HealthMap automated data collection system, adapted to monitor online reports about vaccines, vaccination programmes, and vaccine-preventable diseases. Any reports that did not meet the inclusion criteria-any reference to a human vaccine or vaccination campaign or programme that was accessible online-were removed from analysis. Reports were manually analysed for content and categorised by concerns, vaccine, disease, location, and source of report, and overall positive or negative sentiment towards vaccines. They were then given a priority level depending on the seriousness of the reported event and time of event occurrence. We used descriptive statistics to analyse the data collected during a period of 1 year, after refinements to the search terms and processes had been made.Findings We analysed data from 10 380 reports (from 144 countries) obtained between May 1, 2011, and April 30, 2012. 7171 (69%) contained positive or neutral content and 3209 (31%) contained negative content. Of the negative reports, 1977 (24%) were associated with impacts on vaccine programmes and disease outbreaks; 1726 (21%) with beliefs, awareness, and perceptions; 1371 (16%) with vaccine safety; and 1336 (16%) with vaccine delivery programmes. We were able to disaggregate the data by country and vaccine type, and monitor evolution of events over time and location in specific regions where vaccine concerns were high.Interpretation Real-time monitoring and analysis of vaccine concerns over time and location could help immunisation programmes to tailor more effective and timely strategies to address specific public concerns.