Table 1

Baseline data on the head injury cohort

VariableNo TBI (n=362)Mild TBI (n=297)Moderate-to-severe TBI (n=80)Total (n=739)
Age, mean (range)*38.0 (0–90)32.1 (0–90)46.1 (1–86)36.5 (0–90)
Sex (men) (%)**271 (74.9)178 (59.9)56 (70.0)505 (68.3)
History of psychiatric disease11 (3.0)7 (2.4)3 (3.8)21 (2.8)
Alcohol-related index injury**175 (48.3)80 (26.9)17 (21.2)272 (36.8)
New-onset seizure, total*22 (6.1)9 (3.0)11 (13.8)42 (5.7)
New-onset seizure, alcohol-related14 (3.9)3 (1.0)2 (2.5)19 (2.6)
New TBI before new-onset seizure4 (1.1)2 (0.7)1 (1.2)7 (0.9)
Death during follow-up**52 (14.4)27 (9.1)33 (41.2)112 (15.2)
  • *p<0.01 and **p<0.001 for difference between groups.

  • TBI, traumatic brain injury.