Ability of the two triage systems to predict ED medical expenses
| TPTS acuity level | ED medical expenses (NTD) | TTAS acuity level | ED medical expenses (NTD) |
| Emergent | 9604 (5774–16 473) | 1 | 12 992 (7887–19 557) |
| 2 | 8614 (4874–13 767) | ||
| Non-emergent | 4180 (1999–8914) | 3 | 3785 (1946–7787) |
| 4 | 1899 (1379–3439) | ||
| 5 | 1669 (1058–2226) | ||
| F | 313.3 | 626.6 | |
| Effect size | 0.070 | 0.565 |
Medical expenses were expressed as median (IQR). Dependent variable: log transformation of ED expenses performed with multiple linear regression analysis adjusted by age and sex.
TPTS, Taiwan Prehospital Triage System; TTAS, Taiwan Triage and Acuity Scale; NTD, New Taiwan dollar.