On Jeongah, Park Hyeoun-Ae, Song Tae-Min
College of Nursing, Seoul National University, Seoul, Republic of Korea.
Research Institute of Nursing Science, Seoul National University, Seoul, Republic of Korea.
J Med Internet Res. 2019 Jun 7;21(6):e13456. doi: 10.2196/13456.
Although vaccination rates are above the threshold for herd immunity in South Korea, a growing number of parents have expressed concerns about the safety of vaccines. It is important to understand these concerns so that we can maintain high vaccination rates.
The aim of this study was to develop a childhood vaccination ontology to serve as a framework for collecting and analyzing social data on childhood vaccination and to use this ontology for identifying concerns about and sentiments toward childhood vaccination from social data.
The domain and scope of the ontology were determined by developing competency questions. We checked if existing ontologies and conceptual frameworks related to vaccination can be reused for the childhood vaccination ontology. Terms were collected from clinical practice guidelines, research papers, and posts on social media platforms. Class concepts were extracted from these terms. A class hierarchy was developed using a top-down approach. The ontology was evaluated in terms of description logics, face and content validity, and coverage. In total, 40,359 Korean posts on childhood vaccination were collected from 27 social media channels between January and December 2015. Vaccination issues were identified and classified using the second-level class concepts of the ontology. The sentiments were classified in 3 ways: positive, negative or neutral. Posts were analyzed using frequency, trend, logistic regression, and association rules.
Our childhood vaccination ontology comprised 9 superclasses with 137 subclasses and 431 synonyms for class, attribute, and value concepts. Parent's health belief appeared in 53.21% (15,709/29,521) of posts and positive sentiments appeared in 64.08% (17,454/27,236) of posts. Trends in sentiments toward vaccination were affected by news about vaccinations. Posts with parents' health belief, vaccination availability, and vaccination policy were associated with positive sentiments, whereas posts with experience of vaccine adverse events were associated with negative sentiments.
The childhood vaccination ontology developed in this study was useful for collecting and analyzing social data on childhood vaccination. We expect that practitioners and researchers in the field of childhood vaccination could use our ontology to identify concerns about and sentiments toward childhood vaccination from social data.
尽管韩国的疫苗接种率高于群体免疫阈值，但越来越多的家长对疫苗安全性表示担忧。了解这些担忧对于维持高疫苗接种率很重要。
本研究旨在开发一个儿童疫苗接种本体，作为收集和分析儿童疫苗接种社会数据的框架，并利用该本体从社会数据中识别对儿童疫苗接种的担忧和情绪。
通过提出能力问题来确定本体的领域和范围。我们检查了与疫苗接种相关的现有本体和概念框架是否可用于儿童疫苗接种本体。术语从临床实践指南、研究论文和社交媒体平台上的帖子中收集。从这些术语中提取类概念。使用自上而下的方法开发类层次结构。从描述逻辑、表面效度和内容效度以及覆盖范围方面对本体进行评估。2015年1月至12月期间，从27个社交媒体渠道共收集了40359条关于儿童疫苗接种的韩语帖子。使用本体的二级类概念识别并分类疫苗接种问题。情绪分为三种：积极、消极或中性。使用频率、趋势、逻辑回归和关联规则对帖子进行分析。
我们的儿童疫苗接种本体包括9个超类、137个子类以及431个类、属性和值概念的同义词。家长的健康信念出现在53.21%（15709/29521）的帖子中，积极情绪出现在64.08%（17454/27236）的帖子中。对疫苗接种的情绪趋势受疫苗接种新闻影响。涉及家长健康信念、疫苗可及性和疫苗接种政策的帖子与积极情绪相关，而涉及疫苗不良事件经历的帖子与消极情绪相关。
本研究开发的儿童疫苗接种本体有助于收集和分析儿童疫苗接种的社会数据。我们期望儿童疫苗接种领域的从业者和研究人员能够使用我们的本体从社会数据中识别对儿童疫苗接种的担忧和情绪。
