TABLE 2.
Full Results of the Multivariable GLM Model
| Variable | Beta coefficient (95% CI) | Odds ratio (95% CI) | P-value |
|---|---|---|---|
| Age 2 y or older | 0.89 (0.06 to 1.8) | 2.4 (1.1 to 6.0) | .04 |
| Epidural hematoma size | 0.38 (0.29 to 0.48) | 1.5 (1.3 to 1.6) | <.01 |
| Midline shift amount | 0.53 (0.24 to 0.79) | 1.7 (1.3 to 2.2) | <.01 |
| Extra-axial hematoma size | 0.28 (0.10 to 0.46) | 1.3 (1.1 to 1.6) | <.01 |
| Amount of fracture depression | 0.91 (0.74 to 1.09) | 2.5 (2.1 to 3.0) | <.01 |
| Severe mechanism of injury | 0.85 (0.12 to 1.6) | 2.3 (1.1 to 4.9) | .02 |
| GCS score = 15 | −0.85 (−1.7 to 0.07) | 0.43 (0.18 to 1.07) | .06 |
| Epidural sizea midline shift | a | a | <.01 |
GCS, Glasgow Coma Scale.
a
Given the complexity of representing the interaction between 2 continuous variables, this interaction is displayed graphically in Figure 1.
Estimates are based on the model defined in the training data set.