Emergent large vessel occlusion screening to comparisons
| RACE | LEGS | LAMS | Hemiparesis | VAN | 3I-SS | CPSSS | |
|---|---|---|---|---|---|---|---|
| Need to calculate score | Yes | Yes | Yes | No | No | Yes | Yes |
| No of tests | 6 | 4 | 3 | 1 | 1–4 | 3 | 3–4 |
| Length of exam 1–7 (7 is longest) | 7 | 6 | 4 | 1 | 2 | 3 | 5 |
| Positive predictive value (%) | 42 | 60 | 74 | 74 | |||
| Sensitivity (%) | 85 | 69 | 81 | 27–48 multiple etiologies analyzed | 100 | 67 | 83 |
| Negative predictive value (%) | 94 | 86 | Could not be calculated | 100 | 89 | ||
| Specificity (%) | 68 | 81 | 89 | 90 | 92 | 40 | |
| Type | Prospective | Prospective | Retro | Retro | Prospective | Prospective | Retro |
| Total No of patients analyzed | 357 | 181 | 119 | 45 | 62 | 171 | 303 |
3I-SS, 3 item stroke scale; CPSSS, Cincinnati Prehospital Stroke Severity Scale; LAMS, Los Angeles Motor Scale; LEGS, legs, eyes, gaze, speech (Texas Stroke Intervention Prehospital Stroke Severity Scale); RACE, Rapid Arterial oCclusion Evaluation Scale; Retro, retrospective; VAN, vision, aphasia, neglect.