基于文本网络分析的期刊文章中衰弱知识结构的映射。
Mapping the knowledge structure of frailty in journal articles by text network analysis.
机构信息
Department of Nursing, College of Nursing, Gachon University, Incheon, Republic of Korea.
Red Cross College of Nursing, Chung-Ang University, Seoul, Republic of Korea.
出版信息
PLoS One. 2018 Apr 19;13(4):e0196104. doi: 10.1371/journal.pone.0196104. eCollection 2018.
BACKGROUNDS
This study was to understand the trends of frailty research and networking features of keywords from the academic articles focusing on frailty in the last four decades.
METHOD
Keywords were extracted from articles (n = 6,424) retrieved from Web of Science, from 1981 to April 2016, using Bibexcel, and a social network analysis was conducted using Net Miner.
RESULTS
The core-keywords of research on frailty are constantly changing over the last 40 years. The keywords were tended to focus on impact in the 1980s, and moved to the determinants (i.e., malnutrition) in the 1990s and the 2000s, and in the 2010s, most of keywords were about determinants and measurement of frailty. In the early stages of frailty research, individual behaviour modifications were emphasized as intervention. Keywords with the highest degree centralities were 'impact' (1980s), 'frailty' (1990s), 'home care' (2000s), and 'dementia' (2010s). Keywords with the highest betweenness centralities were 'model' (1980s), 'frailty' (1990s), 'chronic disease' (2000s), and 'malnutrition' (2010s).
DISCUSSION
This study provides a systematic overview of frailty knowledge development. 'Dementia' was found to be the keyword with the highest degree centrality, showing that studies on cognitive function are those being most actively conducted in recent decade. In the 2000s frailty research, sub-themes were sarcopenia, dementia and disability, indicating that frailty was investigated from the view of disease. In the 2010s, obesity, nutrition, prevention, evaluation, and ADL (activities of daily living) were sub-themes of the research network that focused on frailty prevention.
背景
本研究旨在了解过去四十年中，关于衰弱的学术文章中，关键词的研究趋势和网络特征。
方法
使用 Bibexcel 从 1981 年至 2016 年 4 月，从 Web of Science 中检索的 6424 篇文章中提取关键词，并使用 NetMiner 进行社会网络分析。
结果
过去 40 年来，衰弱研究的核心关键词一直在不断变化。关键词在 20 世纪 80 年代倾向于关注影响，在 90 年代和 21 世纪初转移到决定因素（即营养不良），而在 21 世纪 10 年代，大多数关键词都与衰弱的决定因素和测量有关。在衰弱研究的早期阶段，强调个体行为改变作为干预措施。度中心度最高的关键词是“影响”（20 世纪 80 年代）、“衰弱”（20 世纪 90 年代）、“家庭护理”（21 世纪 00 年代）和“痴呆”（21 世纪 10 年代）。中间中心度最高的关键词是“模型”（20 世纪 80 年代）、“衰弱”（20 世纪 90 年代）、“慢性病”（21 世纪 00 年代）和“营养不良”（21 世纪 10 年代）。
讨论
本研究提供了对衰弱知识发展的系统概述。发现“痴呆”是度中心度最高的关键词，表明最近十年对认知功能的研究最为活跃。在 21 世纪 00 年代的衰弱研究中，亚主题是肌少症、痴呆和残疾，表明衰弱从疾病的角度进行了研究。在 21 世纪 10 年代，肥胖、营养、预防、评估和 ADL（日常生活活动）是关注衰弱预防的研究网络的亚主题。
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