Table 5 MTS: Comparison between ED nurses’ triage judgement and the reference standard based on the first judgement
ED nurse judgementReference standardGreenBlueTotal
RedOrangeYellow
Red030003
Orange0111580124
Yellow05199122218
Green01222082233
Blue0017816
Total012022723512594
  • Agreement Manchester Triage System (MTS): 526/594 (88.6%); one-level disagreement: 56/594 (9.4%); two-level disagreement: 12/594 (2.0%); undertriage: 32/594 (5.4%); overtriage: 36/594 (6.1%); unweighted kappa: 0.84 (0.80 to 0.87); quadratic-weighted kappa: 0.87 (0.70 to 1.00). ED, emergency department.

  • Agreement Manchester Triage System (MTS): 526/594 (88.6%); one-level disagreement: 56/594 (9.4%); two-level disagreement: 12/594 (2.0%); undertriage: 32/594 (5.4%); overtriage: 36/594 (6.1%); unweighted kappa: 0.84 (0.80 to 0.87); quadratic-weighted kappa: 0.87 (0.70 to 1.00). ED, emergency department.