Head Injuries Are More Likely to Experience Neurologic Diseases

64.6% of the cohort who had suffered a head injury died, compared to 54.6%. The death rate among head injured individuals was 2.1 times the mortality rate among those with no head injury. When they further looked at those with more severe head injuries, it was even higher. This is not a causative study. It's correlative. But it is interesting to show that there's a clearly significant difference and that head injury is associated with a higher risk of death.