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ESI, Emergency Severity Index
| ESI comparison group | ESI level | Median triage-to-provider time (minutes) (N) | p-value |
| 1 vs. 3 | 1 | 19.5 (4) | 0.2 |
| 3 | 62 (4) | ||
| 2 vs. 3 | 2 | 35.5 (92) | 0.0007 |
| 3 | 60.5 (92) | ||
| 2 vs. 4 | 2 | 39 (15) | 0.69 |
| 4 | 27 (15) | ||
| 3 vs. 4 | 3 | 63 (15) | 0.4 |
| 4 | 41 (15) | ||
| More acute vs. less acute | More acute | 39.5 (126) | 0.004 |
| Less acute | 55 (126) |
