Table 1. The Clinical and Demographic Characteristics of the Study Groups at the Admission Time.

Characteristics	Control (n = 16)	Progesterone (n = 16)	P Value
Age, y; mean ± SEM	30.75 ± 3.4	28.44 ± 1.74	0.84
Injury time to randomization (minute); mean ± SEM	84.81 ± 9.93	69.36 ± 19.38	0.98
GCS (score); mean ± SEM
Total	7.75 ± 0.52	7.5 ± 0.55	0.81
Cause of DAI, No. (%)			N/S
Motor vehicle	15 (93.8)	16 (100)
Fall	0 (0.0)	0 (0.0)
Other	1 (6.2)	0 (0.0)

Abbreviations: DAI, diffuse axonal injury; GCS, Glasgow coma scale; N/S, not significant; n, number of patients.