Table 1.

Overall Agreement of LVO Scales With CT Imaging

ScaleAccuracyKappa (95% CI)SensSpecPPVNPVAUCDOR
RACE ≥50.860.51 (0.41–0.60)0.660.900.480.930.7817.50
LAMS ≥40.830.43 (0.34–0.52)0.660.860.480.930.7611.80
FAST-ED ≥40.850.49 (0.40–0.58)0.700.880.480.920.7916.40
PASS ≥20.810.43 (0.34–0.52)0.710.840.450.930.7712.40
CPSSS ≥20.810.35 (0.26–0.45)0.560.860.420.910.717.54
  • Prevalence =14.5%. AUC indicates area under receiver-operator curve value; CI, confidence interval; CPSSS, Cincinnati Prehospital Stroke Severity Scale; CT, computed tomography; DOR, diagnostic odds ratio; FAST-ED, Field Assessment Stroke Triage for Emergency Destination; LAMS, Los Angeles Motor Scale; LVO, large vessel occlusion; NPV, negative predictive value; PASS, Prehospital Acute Stroke Severity scale; PPV, positive predictive value; RACE, Rapid Arterial Occlusion Evaluation; Sens, sensitivity; and Spec, specificity.