J Korean Soc Emerg Med.  2018 Dec;29(6):595-602. 10.0000/jksem.2018.29.6.595.

Relevance of emergency level assessment by the Korean Triage and Acuity Scale for adult patients in a local emergency medical center

• Lee GW
• Lee SH
• Lee KW
• Jang TC
• Kim GM
• Seo YW
• Ko SH

• KMID: 2432049
• DOI: http://doi.org/10.0000/jksem.2018.29.6.595

Abstract

OBJECTIVE
The Korean Triage and Acuity Scale (KTAS), which was implemented in 2016, needs to be assessed for its validity and reliability. Here we evaluate the relevance of emergency level assessment by analyzing the validity of KTAS as a Korean standardized triage system.
METHODS
We retrospectively analyzed the medical records of adults who presented to a local emergency room (ER) during an 18-month period. We compared medical resources used, life-saving interventions performed, length of stay (LOS) in ER, admission rate, and mortality at each KTAS level.
RESULTS
Among a total of 40,339 patients, most patients were at KTAS 4 (n=19,532, 48.4%) and the longest median LOS in ER was 450 minutes at KTAS 2. As the KTAS level increased, the percentage of medical resources used and life-saving interventions performed increased significantly. The odds of total admission and intensive care unit admission were significantly higher at KTAS 1 through 4 compared to those at KTAS 5. The odds related to admission and mortality were also significantly higher at KTAS 3 than at KTAS 4.
CONCLUSION
We concluded that the KTAS, as a Korean standardized triage system of emergency level assessment, is relevant. Further, KTAS 1-3 and KTAS 4-5 are appropriate criteria to distinguish emergency and non-emergency patients.

Keyword

Korean Triage and Acuity Scale; Triage; Relevance; Validity

MeSH Terms

Adult*
Emergencies*
Emergency Service, Hospital
Humans
Intensive Care Units
Length of Stay
Medical Records
Mortality
Reproducibility of Results
Retrospective Studies
Triage*