Table 3 Frequency of total CT scans by demographic variables
| Â | Control group | Intervention group | p |
|---|---|---|---|
Male | 4.8 (4.2-5.3) | 4.6 (4.2-4.9) | 0.562 |
Female | 5.0 (3.8-6.2) | 4.3 (3.8-4.8) | 0.157 |
Age ≥ 65 yrs | 4.9 (4.3-5.4) | 4.5 (4.2-4.8) | 0.279 |
Age < 65 yrs | 4.5 (1.9-10.8) | 4.4 (3.7-4.9) | 0.850 |
Blunt mechanism | 5.0 (4.5-5.5) | 4.3 (3.7-5.0) | 0.186 |
Penetrating mechanism | 3.8 (1.9-5.6) | 3.0 (1.4-4.5) | 0.400 |
ISS severity | Â | Â | Â |
   Moderate (9-15) | 5.3 (4.41-6.17) | 3.9 (2.88-4.76) | 0.028 |
   Severe (16-24) | 5.0 (3.9-5.9) | 4.9 (4.4-5.3) | 0.896 |
   Very severe (≥ 25) | 4.5 (3.6-5.4) | 4.4 (3.9-4.7) | 0.680 |
Head injury | Â | Â | Â |
   Mild (GCS 13-15) | 5.0 (4.3-5.6) | 4.1 (3.6-4.5) | 0.020 |
   Moderate (GCS 9-12) | 4.8 (1.5-8.0) | 5.0 (3.8-6.2) | 0.818 |
   Severe (GCS 3-8) | 4.5 (3.4-5.6) | 4.9 (4.5-5.3) | 0.391 |
Shock | 4.0 (3.1-4.9) | 5.0 (4.2-5.6) | 0.105 |
Total frequency of CT | 4.8 (4.3-5.3) | 4.5 (4.2-4.8) | 0.227 |