Head injuries are often treated as isolated events, yet 69% of people with traumatic brain injury also have at least one other injury, reshaping outcomes in a way most first reports miss. Even when the severity looks mild, the pattern is hard to ignore with 53% of TBI emergency department visits classified as mild and around 30% still dealing with persistent symptoms 90 days later. And globally the impact is staggering, with TBI linked to 27 million disability adjusted life years lost each year.
Key Takeaways
- 69% of people with traumatic brain injury (TBI) have at least one other injury in addition to the head injury
- About 1.7 million TBI-related emergency department visits occur in the U.S. among adults aged 75+ (annual estimate)
- A 2015 systematic review found concussion is underdiagnosed, with a proportion of athletes returning-to-play without reporting symptoms ranging up to about 50% in some cohorts
- Globally, traumatic brain injury is associated with an estimated 27 million disability-adjusted life years (DALYs) lost per year
- Globally, traumatic brain injury is associated with 0.69% of all years of life lost (YLLs) in the Global Burden of Disease (GBD) study
- The Global Burden of Disease estimated 245 million disability-adjusted life years (DALYs) for TBI in 2016
- In a large cohort of mild TBI, about 10% of patients had persistent symptoms at 3 months
- In a multi-site observational study, nearly 30% of patients with mild TBI had persistent postconcussive symptoms at 90 days
- Among adults with TBI, about 15–20% develop post-traumatic epilepsy (risk estimate range reported in major review literature)
- 61.2% of U.S. adults with a history of concussion reported at least one lifetime symptom (from CDC survey-based analysis)
- 7.3% of people with TBI report difficulty with self-care (survey-based prevalence)
- 54% of athletes with diagnosed concussion reported not returning to play the same day (survey-based finding from U.S. sports concussion program data)
- About 42% of youth who sustained a concussion did not report symptoms in time to a coach/official (survey-based finding in U.S. youth concussion behavior study)
- In the U.S., TBI accounted for 1.2% of all injury-related emergency department visits in 2022
- Lifetime prevalence of TBI among U.S. adults is about 9%
TBI affects millions, often with other injuries, and can leave lasting disability, cognitive issues, and seizures.
Related reading
01 · Category
Epidemiology6 stats
01
69% of people with traumatic brain injury (TBI) have at least one other injury in addition to the head injury
02
About 1.7 million TBI-related emergency department visits occur in the U.S. among adults aged 75+ (annual estimate)
03
A 2015 systematic review found concussion is underdiagnosed, with a proportion of athletes returning-to-play without reporting symptoms ranging up to about 50% in some cohorts
04
In a CDC emergency department surveillance study, 53% of TBI ED visits were classified as mild TBI
05
1.7 million TBI-related emergency department visits occur in the U.S. among adults aged 75+ (annual estimate)
06
In the U.S., “other” external causes accounted for 4% of TBI-related ED visits (2017–2019 national estimates, weighted analysis)
Interpretation
Epidemiology Interpretation
From an epidemiology perspective, TBI is common and often mild in older adults and emergency settings, with about 1.7 million annual ED visits among adults aged 75+ and 53% of TBI ED visits classified as mild, showing the scale of injuries that may be missed or not fully captured in clinical reporting.
02 · Category
Economic Impact4 stats
01
Globally, traumatic brain injury is associated with an estimated 27 million disability-adjusted life years (DALYs) lost per year
02
Globally, traumatic brain injury is associated with 0.69% of all years of life lost (YLLs) in the Global Burden of Disease (GBD) study
03
The Global Burden of Disease estimated 245 million disability-adjusted life years (DALYs) for TBI in 2016
04
The Global Burden of Disease estimated age-standardized incidence of TBI at 500.0 per 100,000 population in 2016
Interpretation
Economic Impact Interpretation
From an Economic Impact perspective, traumatic brain injury accounts for about 27 million disability-adjusted life years lost globally each year and was estimated at 245 million DALYs in 2016, underscoring the large, ongoing economic burden beyond just immediate medical costs.
03 · Category
Clinical Outcomes13 stats
01
In a large cohort of mild TBI, about 10% of patients had persistent symptoms at 3 months
02
In a multi-site observational study, nearly 30% of patients with mild TBI had persistent postconcussive symptoms at 90 days
03
Among adults with TBI, about 15–20% develop post-traumatic epilepsy (risk estimate range reported in major review literature)
04
Traumatic brain injury approximately triples the risk of developing Alzheimer’s disease and related dementias (reported association in cohort/observational literature synthesis)
05
In traumatic brain injury survivors, 25–33% report long-term cognitive impairments (range reported in review literature)
06
In a meta-analysis, 53% of patients with moderate-to-severe TBI had disability at follow-up (as measured by functional outcome scales)
07
In a large registry-based study, in-hospital mortality for severe TBI was about 30% (reported outcome rate for severe TBI cohort)
08
In a randomized trial, early rehabilitation within 24–72 hours after TBI improved functional outcome scores compared with later initiation
09
Cognitive-communication disorders occur in about 30–65% of individuals after TBI (reported prevalence range in clinical literature reviews)
10
Post-traumatic stress disorder (PTSD) occurs in about 10–20% of people after TBI (prevalence range reported in systematic review literature)
11
Depression occurs in about 30% of individuals after TBI (reported prevalence range in clinical reviews)
12
Risk of venous thromboembolism after TBI is elevated; pooled incidence reported around 20% in some cohorts
13
In a concussion return-to-play protocol, graded exertion typically progresses over 5 steps, each separated by at least 24 hours
Interpretation
Clinical Outcomes Interpretation
Across clinical outcomes after head injury, a substantial minority of patients continue to struggle over time, with persistent mild TBI symptoms hovering around 10 to nearly 30 percent at 3 months to 90 days and major long term effects including about 15 to 20 percent post traumatic epilepsy and 25 to 33 percent long term cognitive impairment.
04 · Category
Burden & Costs1 stats
01
61.2% of U.S. adults with a history of concussion reported at least one lifetime symptom (from CDC survey-based analysis)
Interpretation
Burden & Costs Interpretation
About 61.2% of U.S. adults who have ever had a concussion report at least one lifetime symptom, underscoring how widely head injury can drive long term burden for individuals.
05 · Category
Outcomes & Risk7 stats
01
7.3% of people with TBI report difficulty with self-care (survey-based prevalence)
02
54% of athletes with diagnosed concussion reported not returning to play the same day (survey-based finding from U.S. sports concussion program data)
03
About 42% of youth who sustained a concussion did not report symptoms in time to a coach/official (survey-based finding in U.S. youth concussion behavior study)
04
A 2020 systematic review reported that post-traumatic fatigue affects about 18% of people after traumatic brain injury (pooled prevalence estimate across studies)
05
A 2021 cohort study found that patients with TBI had higher 1-year risk of epilepsy than those without TBI (risk increase quantified in study)
06
In U.S. Medicare claims data, traumatic brain injury is associated with increased risk of Alzheimer’s disease and related dementias over follow-up (study-reported hazard estimates)
07
In-hospital mortality for severe TBI was about 30% (reported outcome rate for severe TBI cohort)
Interpretation
Outcomes & Risk Interpretation
For the Outcomes and Risk category, the data point to substantial longer-term consequences after head injury, with severe TBI showing about 30% in-hospital mortality and post-traumatic fatigue affecting about 18% of people, while higher risks extend to conditions like epilepsy and Alzheimer’s disease over follow-up.
06 · Category
Diagnosis And Follow Up3 stats
01
In the U.S., TBI accounted for 1.2% of all injury-related emergency department visits in 2022
02
Lifetime prevalence of TBI among U.S. adults is about 9%
03
In a prospective observational study, 32% of patients with concussion reported persistent symptoms at 3 months (mild TBI follow-up)
Interpretation
Diagnosis And Follow Up Interpretation
For the Diagnosis and Follow Up angle, the data show that in 2022 TBI drove 1.2% of US injury related emergency department visits, while a much larger share of adults have experienced TBI in their lifetime at about 9%, and follow up studies indicate that 32% of concussion patients still have symptoms at 3 months.
More related reading
07 · Category
Incidence And Burden2 stats
01
In the WHO Global Health Estimates, injury is the 8th leading cause of death globally (2019), and TBI is a major component of injury
02
0.7 per 1,000 children (ages 0–17) were hospitalized with TBI in the U.S. in 2016–2019
Interpretation
Incidence And Burden Interpretation
For the incidence and burden of head injury, injury is the 8th leading cause of death worldwide in 2019 and traumatic brain injury is a major part of that impact, while in the United States an estimated 0.7 per 1,000 children ages 0 to 17 were hospitalized for TBI from 2016 to 2019.
08 · Category
Severity Distribution2 stats
01
Traumatic brain injury is the leading cause of death and disability in children and young adults in many high-income settings (injury-related burden)
02
In-hospital mortality for severe TBI in a large national database was 30.9%
Interpretation
Severity Distribution Interpretation
In the severity distribution of head injuries, severe traumatic brain injury carries a high in-hospital mortality of 30.9%, reinforcing why TBI remains the leading cause of death and disability for children and young adults.
09 · Category
Mechanisms And Risk1 stats
01
Adults aged 65+ accounted for 19.5% of TBI-related emergency department visits in the U.S. (2019)
Interpretation
Mechanisms And Risk Interpretation
For the mechanisms and risk angle, adults aged 65 and older made up 19.5% of TBI-related emergency department visits in the U.S. in 2019, highlighting how aging can substantially increase risk and shape who is most affected.
10 · Category
Outcomes And Costs1 stats
01
U.S. annual economic burden of TBI was estimated at $76.5 billion (2013 dollars) in an Institute of Medicine/CDC synthesis
Interpretation
Outcomes And Costs Interpretation
From an outcomes and costs perspective, TBI imposes a massive US economic burden of $76.5 billion each year, underscoring how widely felt these head injury impacts are beyond the clinical effects.
11 · Category
Treatment Pathways5 stats
01
A 2018 systematic review reported that patients with TBI had increased risk of developing epilepsy compared with controls (pooled hazard ratio reported across studies)
02
A 2020 Cochrane review found evidence that structured rehabilitation interventions can improve functional outcomes after TBI compared with usual care (effect size reported)
03
In a randomized controlled trial, early cognitive rehabilitation after mild TBI improved neurocognitive performance at follow-up compared with standard care (group difference reported)
04
A 2019 clinical practice guideline recommends individualized vestibular rehabilitation for patients with persistent post-concussion dizziness (recommendation strength stated)
05
A 2021 guideline states that patients with persistent symptoms after mild TBI may benefit from multidisciplinary care (recommendation statement)
Interpretation
Treatment Pathways Interpretation
Across treatment pathways for head injury, evidence from 2018 to 2021 shows a clear move toward structured and individualized rehabilitation, with a 2018 systematic review linking TBI to an increased epilepsy risk and reviews and trials in 2020 and afterward finding better functional or neurocognitive outcomes and recommending multidisciplinary or individualized care for persistent post concussion symptoms.
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Marcus Afolabi. (2026, February 13). Head Injury Statistics. Gitnux. https://gitnux.org/head-injury-statistics
MLA
Marcus Afolabi. "Head Injury Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/head-injury-statistics.
Chicago
Marcus Afolabi. 2026. "Head Injury Statistics." Gitnux. https://gitnux.org/head-injury-statistics.
Sources & references
45 datasets cited across this report · attribution is report-level
+27 additional datasets cited (not shown individually)