PTT: results by ISS, NISS, and presence of one or more Garner criteria
| ISS (%) | 95% CI | NISS (%) | 95% CI | Garner (%) | 95% CI | |
|---|---|---|---|---|---|---|
| Sensitivity | 37.8 | 32.7–42.5 | 26.1 | 23–28.8 | 41.5 | 36.8–45.6 |
| Specificity | 98.6 | 98.3–98.8 | 98.9 | 98.5–99.1 | 98.9 | 98.6–99.2 |
| Overtriage | 38.8 | 32.3–47.9 | 30.5 | 23.2–38.8 | 29.5 | 22.7–37.5 |
| Undertriage | 3.5 | 3.2–3.8 | 6.9 | 6.7–7.2 | 3.5 | 3.3–3.8 |