Table 3.
Confusion matrix of multivariate ordinal logistic regression model for predicting SCPPopt for the first 24 h after surgery
| SCPPopt mmHg | Predicted | |||||
|---|---|---|---|---|---|---|
| <60 | 60–70 | 70–80 | >80 | Total | % Correct | |
| Actual | ||||||
| <60 | 4 | 0 | 1 | 5 | 10 | 40.0 |
| 60–70 | 3 | 0 | 3 | 3 | 9 | 0.0 |
| 70–80 | 1 | 0 | 6 | 7 | 14 | 42.9 |
| >80 | 1 | 0 | 2 | 15 | 18 | 83.3 |
| Total | ||||||
| 8 | 0 | 6 | 37 | 51a | 41.6 | |
Classifier based on two factors: mean 24 h and spinal level of injury (cervical/thoracic/conus)
SCPP spinal cord perfusion pressure
a13/64 patients omitted because SCPPopt could not be binned into one of these groups (< 60, 60–70, 70–80, > 80)