Table 1

Clinical and demographic characteristics between the two groups

Admission characteristic
Placebo (n = 77)
Progesterone (n = 82)
P value

Males
57 (74)
58 (70)
0.64
Females
20 (25)
24 (29)
0.64
Mean (standard deviation) age (years)
31 (9)
30 (11)
0.52
Mean (standard deviation) time injury to administration (hours)
3.65 (1.46)
3.80 (2.03)
0.59
Mean (standard deviation) qualifying Glasgow Coma Scale score
6.1 (1.3)
6.0 (1.8)
0.68
Glasgow Coma Scale 3 to 5
20 (25)
22 (26)
0.90
Mechanism of injury



     Motor vehicle
62 (80)
63 (76)
0.57
     Fall
8 (10)
10 (12)
0.71
     Assault
4 (5)
7 (8)
0.40
     Other
3 (3)
2 (2)
0.59
     Surgical procedures
24 (31)
22 (26)
0.54
Pupillary response



     Bilaterally normal
26 (33)
26 (31)
0.78
     Abnormal
51 (66)
56 (68)
0.78
Marshall computerized tomography scan classification



     I
0
0

     II
9 (11)
7 (8)
0.50
     III
22 (28)
28 (34)
0.44
     IV
13 (16)
12 (14)
0.69
     V
24 (31)
22 (26)
0.54
     VI
9 (11)
13 (15)
0.44

Data presented as n (%) unless indicated otherwise.

Xiao et al. Critical Care 2008 12:R61   doi:10.1186/cc6887