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J Korean Soc Emerg Med > Volume 29(1); 2018 > Article
Journal of The Korean Society of Emergency Medicine 2018;29(1): 13-20.
한국형 응급환자 분류도구(Korean Triage and Acuity Scale) 타당도 분석
이인혜1, 김오현2, 김창선1, 오재훈1, 임태호1, 이진웅3, 조석주4, 황성연5, 박준범6*
1한양대학교 의과대학 응급의학교실
2연세대학교 원주의과대학 응급의학교실
3충남대학교 의과대학 응급의학교실
4부산대학교 의과대학 응급의학교실
5성균관대학교 의과대학 응급의학교실
6순천향대학교 의과대학 응급의학교실
Validity Analysis of Korean Triage and Acuity Scale
Inhye Lee1, Ohhyun Kim2, Changsun Kim1, Jaehoon Oh1, Taeho Lim1, Jinwoong Lee3, Suck Ju Cho4, Seong Youn Hwang5, Joonbum Park6*
1Department of Emergency Medicine, Hanyang University College of Medicine, Seoul, Korea
2Yonsei University Wonju College of Medicine, Wonju, Korea
3Chungnam University College of Medicine, Daejeon, Korea
4Pusan University College of Medicine, Busan, Korea
5Sungkyunkwan University College of Medicine, Changwon, Korea
6Soonchunhyang University College of Medicine, Seoul, Korea
Correspondence  Joonbum Park ,Tel: 02-709-9117, Fax: 02-709-9118, Email: jesumania@gmail.com,
Received: July 31, 2017; Revised: August 3, 2017   Accepted: October 27, 2017.  Published online: February 28, 2018.
The Korean Triage and Acuity Scale (KTAS), which was developed in 2012 due to the need for a single triage tool for emergency patients in Korea, has since become nationalized. Although five years has passed, there has been limited evidence of its validation. Therefore, this study was conducted to analyze the validity of the new triage system.
We conducted a multicenter prospective study. Data were collected from seven hospitals and 42,187 patients were classified using the KTAS from April 1, 2013 to July 6, 2014. We analyzed whether the indirect severity variables showed meaningful differences according to KTAS levels. The variables consisted of disposition from emergency room, length of stay, numbers of consultations, examination of computed tomography, emergency room costs, and performance of emergent interventions.
From KTAS level 1 to 5, a decreasing trend in the length of stay in emergency room, frequency of consultation with other departments, admission, computed tomography rate, emergency intervention rate, and emergency room costs was observed. Upon binominal logistic regression, disposition from emergency room and emergent intervention rate showed the highest odds ratio with statistical significance.
The results of this study demonstrated that KTAS is a valid emergency triage tool that reflects the severity of the patient with indirect indicators. The results of this study will be useful as a reference for quality control of KTAS.
Key words: Triage, Validation studies, Health resources
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