Neuroepidemiology of traumatic brain injury.
Level 5 - mechanism / opinion, no new human data
Narrative review summarizing regional epidemiological estimates without systematic review methodology.
PubMed 27637960 · doi:10.1016/B978-0-12-802973-2.00012-4
What was done
This narrative review synthesized epidemiological data on traumatic brain injury (TBI), covering primary etiologies (falls, assaults, motor vehicle crashes, sports concussions), demographic risk factors, regional incidence, mortality, long-term disability, and economic costs, primarily drawing on data from the United States, Australia, and the United Kingdom.
What was found
Males are nearly three times more likely to suffer a TBI than females, with risk peaking bimodally in children under 14 and adults aged 65 and older. In the United States, an estimated 1.5 to 2 million individuals sustain a TBI annually, leading to approximately 1.4 million emergency department visits, 275,000 hospitalizations, 52,000 deaths (accounting for ~30% of all annual US deaths), and an annual economic burden of $9 to $10 billion. In Australia, roughly 338,700 individuals (1.9% of the population) live with a TBI-related disability, including 160,200 requiring daily care. In the United Kingdom, TBI accounts for 3.4% of annual emergency department visits, with an overall incidence of 453 per 100,000 (of which 40 per 100,000, or 10.9%, are moderate to severe).
Why it matters
TBI represents a major driver of chronic disability and healthcare expenditure globally. Quantifying regional incidence and demographic vulnerabilities aids in targeting injury-prevention campaigns and structuring post-acute rehabilitation resources.
Limits
The abstract describes a narrative review rather than a systematic review with defined search protocols or formal risk-of-bias evaluation. Surveillance definitions and diagnostic thresholds for mild TBI vary significantly across jurisdictions, and the cited figures are restricted to high-income nations.
Cited by
- supports Traumatic brain injury exhibits a bimodal age distribution, occurring most frequently in young men and in older adults of both sexes.