中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (8): 189-196.doi: 10.16265/j.cnki.issn1003-3033.2021.08.026

• 职业卫生 • 上一篇    下一篇

基于聚类分析和主成分分析的伤员受伤程度评估*

陈长坤 教授, 王小勇, 雷鹏   

  1. 中南大学 防灾科学与安全技术研究所,湖南 长沙 410075
  • 收稿日期:2021-05-07 修回日期:2021-07-08 出版日期:2021-08-28 发布日期:2022-02-28
  • 作者简介:陈长坤 (1977—),男,福建福安人,博士,教授,主要从事公共安全与应急管理研究。E-mail:cckchen@csu.edu.cn。
  • 基金资助:
    国家重点研发计划课题(2018YFC0810201);国家自然科学基金重大项目资助(71790613)。

Injury severity assessment of wounded based on cluster analysis and PCA

CHEN Changkun, WANG Xiaoyong, LEI Peng   

  1. Institute of Disaster Prevention Science and Safety Technology, Central South University, Changsha Hunan 410075, China
  • Received:2021-05-07 Revised:2021-07-08 Online:2021-08-28 Published:2022-02-28

摘要: 为探究人体4大生命体征(呼吸、体温、脉搏、血压)与伤员生命状态之间的对应关系,首先,采用描述性统计分析收集50例伤员样本;然后,结合聚类分析和主成分分析(PCA),提出一种快速评估伤员受伤严重程度的方法(RAIS),并据此对50位伤员的受伤严重程度作分级;最后,对比分析英国早期预警评分(NEWS)与提出的RAIS法在评估结果方面的差异。研究结果表明:通过伤员的4大生命体征数据分析得到的主成分得分线性函数可以用来表征伤员的受伤严重程度,主成分得分越大,受伤程度越重;由于第一主成分(PC1)的贡献率较大,实际进行伤重程度评估时应以PC1得分作为主要依据。

关键词: 聚类分析, 主成分分析(PCA), 受伤严重程度, 生命体征, 评估方法

Abstract: In order to explore correspondence between four vital signs of human body (respiratory, temperature, pulse, blood pressure) and life status of the wounded, firstly, collected data of 50 samples of the wounded were analyzed using descriptive statistics. Then, a method for rapid assessment of injury severity (RAIS) was proposed based on cluster analysis and PCA, and severity of 50 samples was graded accordingly. Finally, difference in assessment results between National Early Warning Score (NEWS) and RAIS was compared and analyzed. The results show that linear function of principal component score obtained through analysis of four vital signs can be used to assess injury severity of the wounded. The greater this score is, the more severe the injury would be. And since contribution rate of first principal component (PC1) is relatively large, PC1 score should be taken as main basis for actual injury severity assessment.

Key words: cluster analysis, principal component analysis (PCA), severity of injury, vital signs, condition assessment method

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