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Table 3 Distribution of patients by formalized triage and blood test prediction model

From: Routine blood tests are associated with short term mortality and can improve emergency department triage: a cohort study of >12,000 patients

  Validation cohort (n = 5738)
  DEPT Blood test predictiona
No calibration
Blood test predictiona
Recalibrated
Green 1876 (2.1% [1.4;2.7]) 235 (0% [0;0]) 2030 (0.4% [0.1;0.7])
Yellow 2272 (3.9% [3.1;4.7]) 4205 (1.3% [0.9;1.6]) 3174 (3.3% [2.7;3.9])
Orange 1557 (6.0% [4.9;7.2]) 821 (8.0% [6.2;9.9]) 365 (15.1% [11.4;18.7%])
Red 33 (36.4%[20.0;52.8%]) 477 (23.9% [20.1;27.7]) 169 (39.6% [32.3;47.0])
  1. Distribution of patients, risk stratified by formalized triage algorithm (DEPT) or the blood test prediction model. 30-day mortality with 95% confidence intervals for individual strata in parenthesis. Initially blood test prediction model overestimates risk of mortality, seen by large number of high risk patients. After recalibration. aPredicted risk of 30-day mortality: green <1%, yellow 1–10%, orange 10–25%, red >25%