Table 4.
Comparison of severity of injury between groups
| Characteristic | Group 1 (Low risk): Did not have a critical care intervention prior to admission (n=187) |
Group 2 (High risk): Had a critical care intervention prior to admission (n=133) |
p value | ||
|---|---|---|---|---|---|
| Patients | Median or Mean With IQR or 95% CI |
Patients | Median or Mean With IQR or 95% CI |
||
| GCS* | 184/187 | 15 (14–15) | 133/133 | 7 (3–15) | . |
| Mild TBI: GCS 13–15 | 179/184 | 97.3% (94.9–99.6) | 39/133 | 29.3% (21.6–37.1) | <0.001 |
| Moderate TBI: GCS 9–12 | 5/184 | 2.7% (0.4–5.1) | 21/133 | 15.8% (9.6–22.0) | <0.001 |
| Severe TBI: GCS < 8 | 0/184 | 0% (0–2.0) | 72/133 | 54.1% (45.7–62.6) | <0.001 |
| Isolated head | 155/187 | 83.8% (78.5–89.1) | 76/133 | 56.3% (47.9–64.7) | <0.001 |
| Loss of consciousness | 60/187 | 32.4% (25.7–39.2) | 44/133 | 32.6% (24.7–40.5) | 0.73 |
| Injury severity score | 187/187 | 16 (10–20) | 187/187 | 25 (17–33) | . |
| Injury severity score > 15 | 73/187 | 39.0% (32.0–46.4) | 118/133 | 88.7% (82.1–93.5) | <0.001 |
| Marshall Score | 187/187 | 2 (2–2) | 133/133 | 2 (2–3) | . |
| Marshall Score > 2 | 3/187 | 1.6% (0.3–4.6) | 44/133 | 33.1% (25.2–41.8) | <0.001 |
GCS: Glascow Coma Score; TBI: traumatic brain injury; LOC: computed tomography; ED: emergency department; IQR: interquartile range; CI: confidence interval
*
3 patients did not have GCS recorded