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Table 2 Sensitivity and specificity of somatosensory evoked potentials and other outcome predictors for 6-month neurological outcome

From: Beyond dichotomy: patterns and amplitudes of SSEPs and neurological outcomes after cardiac arrest

  Good outcome (n = 51) Poor outcome (n = 141) Poor outcome prediction Good outcome prediction
Sensitivity % (95% CI) Specificity % (95% CI) Sensitivity % (95% CI) Specificity % (95% CI)
N20–P25 pattern
 N20 (−), n (%) 0 (0.0) 43 (30.5) 30.5 (23.0–38.8) 100 (93.0–100.0)   
 P25 (−), n (%) 0 (0.0) 99 (70.2) 70.2 (61.9–77.6) 100 (93.0–100.0)   
 N20 (−) or P25 (−), n (%) 0 (0.0) 101 (71.6) 71.6 (63.4–78.9). 100.0 (93.0–100.0)   
N20–P25 amplitude
  < 0.64 μV, n (%) 0 (0.0) 105 (74.5) 74.5 (66.5–81.4) 100 (93.0–100.0)   
  > 2.31 μV, n (%) 27 (52.9) 5 (3.5)    52.9 (38.5–67.1) 96.5 (91.9–98.8)
  > 5.04 μV, n (%) 5 (9.8) 0 (0.0)    9.8 (3.3–21.4) 100.0 (97.4–100.0)
Peak level of NSE (n = 160) (n = 48) (n = 112)     
  > 41.7 ng/mL, n (%) 4 (8.3) 91 (81.3) 81.3 (72.8–88.0) 91.7 (80.0–97.7)   
  > 68.49 ng/mL, n (%) 0 (0.0) 68 (60.7) 60.7 (51.0–69.8) 100 (92.6–100.0)   
DWI lesion (n = 134) (n = 36) (n = 98)     
 No diffusion-restriction lesion, n (%) 26 (72.2) 5 (5.1)    72.2 (54.8–85.8) 94.9 (88.5–98.3)
 No lesion or isolated cortex or deep gray matter lesion, n (%) 34 (94.4) 8 (8.2)    94.4 (81.3–99.3) 91.8 (84.6–96.4)
 Multifocal or global lesion, n (%) 2 (5.6) 90 (91.8) 91.8 (84.6–96.4) 94.4 (81.3–99.3)   
  1. CI confidence interval, NSE neuron-specific enolase, DWI diffusion-weighted imaging