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Table 3 Evaluation of scientific evidence of team triage according to GRADE.

From: A systematic review of triage-related interventions to improve patient flow in emergency departments

Outcome measures Number of patients (number of studies) Study design Outcome*, median (min-max) Scientific evidence according to GRADE Comments
Number of patients leaving ED without being seen by a physician (fewer) 32 830
(4 studies)
3 observational studies
1.3 (1.2-6.8) percent Moderately strong
Upgraded because of concordance of data
Waiting time
25 927
(3 studies)
3 observational studies
18 (16-20) min Limited
Downgraded because of study quality and heterogeneity
Length of stay (shorter) 29 674
(4 studies)
2 observational studies
40.5 (0-55) min Limited
Upgraded because of outcome size. Downgraded because of study quality.
  1. * Outcome calculated as the difference between intervention and control