Table 3 Performance Statistics for Stroke Mimic Prediction Scales
From: External validation of stroke mimic prediction scales in the emergency department
AUROC (95% CI) | P value* | Cut off | Sensitivity (%) (95% CI) | Specificity (%) (95% CI) | PPV (%) (95% CI) | NPV (%) (95% CI) | LR+ (95% CI) | LR- (95% CI) | |
|---|---|---|---|---|---|---|---|---|---|
FABS | 0.612 (0.487–0.738) | 0.151 | 2 | 24.6 (19.3–30.5) | 52.9 (27.8–77.0) | 88.1 (77.8–94.7) | 4.7 (2.2–8.8) | 0.52 (0.3–0.91) | 1.42 (0.90–2.24) |
Simplified FABS | 0.608 (0.483–0.734) | 0.139 | 2 | 25.4 (20–31.4) | 52.9 (27.8–77.0) | 88.4 (78.4–94.9) | 4.8 (2.2–8.9) | 0.54 (0.31–0.94) | 1.41 (0.89–2.22) |
TeleStroke Mimic Score | 0.750 (0.629–0.872) | Reference | 13.6 | 91.3 (86.9–94.5) | 58.8 (32.9–81.6) | 96.9 (93.7–98.8) | 32.3 (16.7–51.4) | 2.22 (1.25–3.92) | 0.15 (0.08–0.26) |
Khan Score | 0.602 (0.517–0.686) | 0.081 | 2 | 32.1 (26.2–38.4) | 88.2 (63.6–98.5) | 97.5 (91.2–99.7) | 8.4 (4.8–13.5) | 2.73 (0.73–10.2) | 0.77 (0.63–0.93) |