Abstract P-027 Table 1

IONM Alert and Diagnostic Information for All Procedures and 2 Cohort Subgroups

CategoryAll ProceduresNo MEP CohortMEP Cohort
True Negatives (n) 2200 1474 726
False Positives (n) 51 27 24
True Positives (n) 24 12 12
False Negatives (n) 3 2 1
Cases with alerts, n (%) 120 (5.2%) 68 (4.5%) 52 (6.8%)
Sensitivity-% [95% CI] 88.9 [70.8,97.7] 85.7 [57.2,98.2] 92.3 [34.0,99.8]
Specificity-% [95% CI] 97.7 [97.0,98.3] 98.2 [97.4,98.8] 96.7 [95.3,97.9]
PLR- Value [95% CI] 39.2 [29.0,53.1] 47.7 [31.0,73.3] 28.9 [18.9,44.1]
NLR- Value [95% CI] 0.11 [0.04,0.33] 0.15 [0.04,0.52] 0.08 [0.01,0.52]