Table 4 Dispatch decision tree by depth, model, misclassification costs and Over/under triage rates*
Depth | Model | Misclassification costs | Over triage (%) | Under triage (%) |
|---|---|---|---|---|
1 | A | 1:1 | 85.2% | 0.0% |
3 | B | 1:1 | 36.0% | 14.1% |
3 | B | 1:2 | 52.4% | 13.0% |
3 | B | 1:3 to 1:4 | 66.0% | 10.6% |
3 | B | 1:5 | 71.9% | 9.4% |
3 | B | 1:6 | 73.8% | 8.9% |
3 | B | 1:7 | 75.6% | 8.5% |
3 | B | 1:8 | 76.9% | 8.2% |
3 | B | 1:9 to 1:12 | 82.3% | 6.8% |
3 | B | 1:13 to 1:18 | 84.7% | 4.8% |
3 | B | 1:19 | 85.2% | 0.0% |
3 | C | 1:1 | 40.5% | 14.0% |
3 | C | 1:2 | 53.5% | 13.0% |
3 | C | 1:3 | 64.9% | 11.3% |
3 | C | 1:4 | 66.3% | 11.0% |
3 | C | 1:5 TO 1:8 | 72.7% | 10.1% |
3 | C | 1:9 | 85.2% | 0.0% |
Unlimited (7) | D | 1:1 | 35.4% | 13.8% |
Unlimited (7) | D | 1:2 | 51.6% | 12.7% |
Unlimited (7) | D | 1:3 | 61.7% | 11.4% |
Unlimited (7) | D | 1:4 | 67.7% | 9.9% |
Unlimited (7) | D | 1:5 | 70.7% | 9.3% |
Unlimited (7) | D | 1:6 | 72.0% | 9.0% |
Unlimited (7) | D | 1:7 | 76.2% | 8.0% |
Unlimited (7) | D | 1:8 | 78.0% | 7.4% |
Unlimited (7) | D | 1:9 | 78.6% | 7.2% |
Unlimited (7) | D | 1:10 to 1:12 | 80.0% | 6.7% |
Unlimited (7) | D | 1:13 | 82.6% | 6.1% |
Unlimited (7) | D | 1:21 | 84.8% | 2.7% |
Unlimited (7) | D | 1:22 | 85.2% | 0.0% |
Unlimited (7) | E | 1:1 | 42.1% | 13.6% |
Unlimited (7) | E | 1:2 | 52.5% | 12.5% |
Unlimited (7) | E | 1:3 | 56.7% | 12.1% |
Unlimited (7) | E | 1:4 | 69.8% | 9.9% |
Unlimited (7) | E | 1:5 to 1:6 | 70.5% | 9.7% |
Unlimited (7) | E | 1:7 to 1:8 | 73.5% | 9.4% |
Unlimited (7) | E | 1:9 | 83.4% | 7.8% |
Unlimited (7) | E | 1:10 to 1:11 | 83.5% | 7.7% |
Unlimited (7) | E | 1:12 | 85.2% | 0.0% |