Table 4.
10 mA tetanic stimulation | 20 mA tetanic stimulation | 40 mA tetanic stimulation | |
---|---|---|---|
Best cutoff for pupil diameter variation (%) |
1 |
5 |
13 |
Sensitivity |
0.67 (0.52 – 0.81) |
0.72 (0.58 – 0.86) |
0.78 (0.65 – 0.91) |
Specificity |
0.73 (0.59 – 0.87) |
0.77 (0.64 – 0.90) |
0.86 (0.76 – 0.97) |
Positive predictive value |
0.67 (0.52 – 0.81) |
0.72 (0.58 – 0.86) |
0.82 (0.71 – 0.94) |
Negative predictive value |
0.73 (0.59 – 0.87) |
0.77 (0.64 – 0.90) |
0.83 (0.71 – 0.94) |
Youden index | 0.39 | 0.49 | 0.68 |
All data except Youden index were 95% confidence interval. RASS Richmond Agitation Sedation Scale.