Table 2 Prognostic variables of patient population

Admission GCS score

6.5 (3.0 to 7.2)

7 (4.7 to 10.0)

0.38

Out-of-hospital hypoxia (n)

5

7

0.63

Out-of-hospital hypotension (n)

5

4

1

Pupillary reactivity (n)^a

   One reacting

3

5

0.66

   Both reacting^b

12

14

Pre-enrolment CT (n)

   Diffuse injury without brain swelling

8

5

0.04

   Diffuse bilateral brain swelling

1

8

   Diffuse injury unilateral brain swelling with midline shift

5

1

   Any mass lesion evacuated

7

5

   Nonevacuated mass lesion

1

3