Table 3. Comparison between the Cincinnati Prehospital Stroke Scale (CPSS) and 7-Item Japan Urgent Stroke Triage (JUST-7) in stroke diagnostic ability.
| No of items subject to CPSS | Sensitivity (%) | Specificity (%) | Youden index |
|---|---|---|---|
| 1 item or more | 92.2 | 15.79 | 107.99 |
| 2 items or more | 69.65 | 68.42 | 138.07 |
| 3 items | 33.53 | 89.47 | 123 |
| Probability of stroke in JUST-7 scale | |||
| 30.10% | 99.2 | 15.24 | 114.4 |
| 40.20% | 95 | 28.57 | 123.6 |
| 46.30% | 94.2 | 35.71 | 129.9 |
| 55.90% | 88 | 42.1 | 130.1 |
| 88.30% | 47.1 | 71.43 | 118.5 |
| 96.30% | 13.2 | 92.86 | 106.1 |
CPSS, Cincinnati Prehospital Stroke Scale; JUST– 7, 7-Item Japan Urgent Stroke Triage