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Table 6 Appraisal of scientific evidence (according to GRADE) - Validity of 5-level triage scales measured by acute mortality.

From: Emergency Department Triage Scales and Their Components: A Systematic Review of the Scientific Evidence

Effect measure (endpoint)

Triage scale

No. Patients (no. Studies)

Mortality at triage level 5 (percent)

Scientific evidence

Comments

Patient mortality

CTAS

29 346

(1 study) [43]

0%

Limited

Only one study, but large population

 

ATS

127 079

(2 studies) [35, 36]

0.03%-0.1%

Limited

 
 

METTS

8695

(1 study) [10]

0.5%

Insufficient

Reduction for study quality (-1)

  1. All the studies are observational