Test characteristics with 95% CIs
| (A) Life-saving interventions, n=4962 (32.8%) | ||||
| Tool | Sensitivity | Specificity | Undertriage | Overtriage |
| SPTT | 92.2 (90.5 to 93.7) | 12.1 (11.1 to 13.2) | 7.8% | 75.0% |
| PTT | 34.1 (31.4 to 36.9) | 85.8 (84.6 to 86.9) | 65.9% | 56.7% |
| JumpSTART | 45.0 (42.1 to 47.8) | 92.1 (91.1 to 92.9) | 55.1% | 35.7% |
| MPTT-24 | 80.8 (78.4 to 83.0) | 39.6 (38.0 to 41.2) | 19.2% | 70.2% |
| Careflight | 44.4 (41.5 to 47.2) | 94.9 (94.1 to 95.6) | 55.6% | 26.7% |
| MIMMS | 41.6 (38.8 to 44.5) | 79.6 (78.3 to 80.9) | 58.4 | 60.7% |
| NASMeD | 51.9 (49.0 to 54.7) | 79.1 (77.8 to 80.4) | 48.1% | 55.9% |
| RAMP | 43.8 (41.0 to 46.6) | 94.9 (94.1 to 95.6) | 56.2% | 26.8% |
| MSTART | 53.9 (51.0 to 56.7) | 88.1 (87.0 to 89.1) | 46.1% | 41.0% |
| (B) ISS >15, n=4962 (32.8%) | ||||
| Tool | Sensitivity | Specificity | Undertriage | Overtriage |
| SPTT | 91.8 (90.3 to 93.1) | 12.4 (11.3 to 13.6) | 8.2% | 66.4% |
| PTT | 28.8 (26.6 to 31.0) | 85.7 (84.5 to 86.9) | 71.2% | 50.7% |
| JumpSTART | 36.0 (33.7 to 38.4) | 92.4 (91.4 to 93.3) | 64.0% | 30.5% |
| MPTT-24 | 75.6 (73.5 to 77.7) | 39.6 (38.0 to 41.3) | 24.4% | 62.3% |
| Careflight | 34.9 (32.6 to 37.3) | 95.2 (94.4 to 95.9) | 65.1% | 22.1% |
| MIMMS | 34.9 (32.6 to 37.3) | 79.0 (77.6 to 80.4) | 65.1% | 55.4% |
| NASMeD | 42.6 (40.2 to 45.1) | 78.5 (77.1 to 79.9) | 57.4% | 51.1% |
| RAMP | 34.5 (32.2 to 36.9) | 95.3 (94.5 to 96.0) | 65.5% | 22.1% |
| MSTART | 42.2 (39.8 to 44.7) | 87.7 (86.6 to 88.8) | 57.8% | 37.5% |
| (C) Mortality, n=4962 (32.8%) | ||||
| Tool | Sensitivity | Specificity | Undertriage | Overtriage |
| SPTT | 86.8 (74.7 to 94.5) | 11.0 (10.2 to 12.0) | 13.2% | 92.2% |
| PTT | 71.7 (57.7 to 83.2) | 81.6 (80.5 to 82.6) | 28.3% | 96.0% |
| JumpSTART | 88.7 (77.0 to 95.7) | 83.9 (82.9 to 84.9) | 11.3% | 94.4% |
| MPTT-24 | 83.0 (70.2 to 91.9) | 34.9 (33.5 to 36.2) | 17.0% | 98.6% |
| Careflight | 71.7 (57.7 to 83.2) | 86.0 (85.0 to 87.0) | 28.3% | 94.7% |
| MIMMS | 71.7 (57.7 to 83.2) | 75.0 (73.8 to 76.2) | 28.3% | 97.0% |
| NASMeD | 71.7 (57.7 to 83.2) | 72.1 (70.8 to 73.4) | 28.3% | 97.2% |
| RAMP | 69.8 (55.7 to 81.7) | 86.2 (85.2 to 87.1) | 30.2% | 94.8% |
| MSTART | 81.1 (68.0 to 90.6) | 78.6 (77.4 to 79.8) | 28.9% | 96.1% |
ISS, Injury Severity Score; MIMMS, Major Incident Medical Management and Support; MPTT-24, Modified Physiological Triage Tool-24; MSTART, Modified Simple Triage and Rapid Treatment; NASMeD, National Ambulance Service Medical Directors; PTT, Paediatric Triage Tape; RAMP, Rapid Assessment of Mentation and Pulse; SPTT, Sheffield Paediatric Triage Tool.