Table 2

Original Manchester Triage System (MTS) compared with modified MTS and proportion of high urgency patients as classified by the reference standard for urgency in dataset 2 (2007–2008)

Modified MTS
Original MTSImmediate (1)Very urgent (2)Urgent (3)Standard (4)Non-urgent (5)TotalReclassified*
Immediate (1)23200002320
High urgency, (%)127 (54.7)127 (54.7)
Very urgent (2)015764025302031455 (22)
High urgency, (%)258 (16.4)10 (2.5)0 (0)268 (13.2)
Urgent (3)00360018403784184 (4.9)
High urgency, (%)123 (3.4)4 (2.2)127 (3.4)
Standard (4)005347202385011291 (5.8)
High urgency, (%)4 (7.5)68 (1.4)5 (2.1)77 (1.5)
Non-urgent (5)00001521520
High urgency, (%)3 (2.0)3 (2.0)
Total23215764055495739011210
High urgency, (%)127 (54.7)258 (16.4)137 (3.4)72 (1.4)8 (2.0)620 (5.4)930 (8.2)
  • * N and % of patient reclassified into a higher or lower urgency category after modification.

  • High urgency, according to reference standard, ‘immediate’ or ‘very urgent’ urgency.