Reliability of a computerized version of the Pediatric Canadian Triage and Acuity Scale

Acad Emerg Med. 2007 Oct;14(10):864-9. doi: 10.1197/j.aem.2007.06.018. Epub 2007 Aug 29.


Background: The use of a standardized triage tool allows better comparison of the patients; a computerized version could theoretically improve its reliability.

Objectives: To compare the interrater agreement of the Pediatric Canadian Triage and Acuity Scale (PedCTAS) and a computerized version (Staturg).

Methods: A two-phase experimental study was conducted to compare the interrater agreement between nurses assigning triage level to written case scenarios using either traditional PedCTAS or Staturg. Participants were nurses with at least one year of experience in pediatric emergency medicine and trained at triage. Each of the 54 scenarios was evaluated first by all nurses using either one of the strategies. Four weeks later, they evaluated the same scenarios using the other tool. The primary outcome was the interrater agreement measured using kappa score.

Results: Eighteen of the 29 eligible nurses participated in the study. The computerized triage tool showed a better interrater agreement, with a Staturg kappa score of 0.55 (95% confidence interval = 0.53 to 0.57) versus a PedCTAS kappa score of 0.51 (95% confidence interval = 0.49 to 0.53). The computerized version was also associated with higher agreements for scenarios describing patients with the highest severity of triage (kappa score of 0.72 vs. 0.55 for level 1; kappa score of 0.70 vs. 0.51 for level 2).

Conclusions: A computerized version of the PedCTAS showed a statistically significant improvement in the interrater agreement for nurses evaluating the triage level of 54 clinical scenarios, but this difference has probably small clinical significance.

Publication types

  • Comparative Study
  • Validation Study

MeSH terms

  • Adult
  • Canada
  • Child
  • Cross-Over Studies
  • Diagnosis, Computer-Assisted / instrumentation*
  • Emergency Nursing / instrumentation
  • Female
  • Humans
  • Male
  • Middle Aged
  • Observer Variation
  • Pediatric Nursing / instrumentation
  • Pediatrics / instrumentation*
  • Reproducibility of Results
  • Triage / methods*