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Table 5 Accuracy of risk assessment, derived from the National Early Warning Score (NEWS), % of cases (number of cases)

From: Medical priority dispatch codes—comparison with National Early Warning Score

  Correct Under-triage Over-triage Total
All missions 54.2 (2234) 18.5 (762) 27.3 (1126) 100.0 (4122)
A priority 28.1 (76) - 71.9 (194) 100.0 (270)
B priority 21.7 (306) 12.3 (173) 66.1 (932) 100.0 (1411)
C priority 74.6 (1335) 25.4 (454) - 100.0 (1789)
D priority 79.3 (517) 20.7 (135) - 100.0 (652)
  1. Complete case analysis