Head Injury Statistics

GITNUXREPORT 2026

Head Injury Statistics

Traumatic brain injury often does not arrive alone, with 69% of people experiencing at least one additional injury, and U.S. adults aged 75 and over account for about 1.7 million TBI related emergency department visits each year. Go from how frequently mild TBI is classified and underreported to the long tail of outcomes like persistent symptoms, epilepsy risk, and higher cognitive decline and you will see why recovery depends on far more than the head impact itself.

45 statistics45 sources11 sections9 min readUpdated 9 days ago

Key Statistics

Statistic 1

69% of people with traumatic brain injury (TBI) have at least one other injury in addition to the head injury

Statistic 2

About 1.7 million TBI-related emergency department visits occur in the U.S. among adults aged 75+ (annual estimate)

Statistic 3

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

Statistic 4

In a CDC emergency department surveillance study, 53% of TBI ED visits were classified as mild TBI

Statistic 5

1.7 million TBI-related emergency department visits occur in the U.S. among adults aged 75+ (annual estimate)

Statistic 6

In the U.S., “other” external causes accounted for 4% of TBI-related ED visits (2017–2019 national estimates, weighted analysis)

Statistic 7

Globally, traumatic brain injury is associated with an estimated 27 million disability-adjusted life years (DALYs) lost per year

Statistic 8

Globally, traumatic brain injury is associated with 0.69% of all years of life lost (YLLs) in the Global Burden of Disease (GBD) study

Statistic 9

The Global Burden of Disease estimated 245 million disability-adjusted life years (DALYs) for TBI in 2016

Statistic 10

The Global Burden of Disease estimated age-standardized incidence of TBI at 500.0 per 100,000 population in 2016

Statistic 11

In a large cohort of mild TBI, about 10% of patients had persistent symptoms at 3 months

Statistic 12

In a multi-site observational study, nearly 30% of patients with mild TBI had persistent postconcussive symptoms at 90 days

Statistic 13

Among adults with TBI, about 15–20% develop post-traumatic epilepsy (risk estimate range reported in major review literature)

Statistic 14

Traumatic brain injury approximately triples the risk of developing Alzheimer’s disease and related dementias (reported association in cohort/observational literature synthesis)

Statistic 15

In traumatic brain injury survivors, 25–33% report long-term cognitive impairments (range reported in review literature)

Statistic 16

In a meta-analysis, 53% of patients with moderate-to-severe TBI had disability at follow-up (as measured by functional outcome scales)

Statistic 17

In a large registry-based study, in-hospital mortality for severe TBI was about 30% (reported outcome rate for severe TBI cohort)

Statistic 18

In a randomized trial, early rehabilitation within 24–72 hours after TBI improved functional outcome scores compared with later initiation

Statistic 19

Cognitive-communication disorders occur in about 30–65% of individuals after TBI (reported prevalence range in clinical literature reviews)

Statistic 20

Post-traumatic stress disorder (PTSD) occurs in about 10–20% of people after TBI (prevalence range reported in systematic review literature)

Statistic 21

Depression occurs in about 30% of individuals after TBI (reported prevalence range in clinical reviews)

Statistic 22

Risk of venous thromboembolism after TBI is elevated; pooled incidence reported around 20% in some cohorts

Statistic 23

In a concussion return-to-play protocol, graded exertion typically progresses over 5 steps, each separated by at least 24 hours

Statistic 24

61.2% of U.S. adults with a history of concussion reported at least one lifetime symptom (from CDC survey-based analysis)

Statistic 25

7.3% of people with TBI report difficulty with self-care (survey-based prevalence)

Statistic 26

54% of athletes with diagnosed concussion reported not returning to play the same day (survey-based finding from U.S. sports concussion program data)

Statistic 27

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)

Statistic 28

A 2020 systematic review reported that post-traumatic fatigue affects about 18% of people after traumatic brain injury (pooled prevalence estimate across studies)

Statistic 29

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)

Statistic 30

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)

Statistic 31

In-hospital mortality for severe TBI was about 30% (reported outcome rate for severe TBI cohort)

Statistic 32

In the U.S., TBI accounted for 1.2% of all injury-related emergency department visits in 2022

Statistic 33

Lifetime prevalence of TBI among U.S. adults is about 9%

Statistic 34

In a prospective observational study, 32% of patients with concussion reported persistent symptoms at 3 months (mild TBI follow-up)

Statistic 35

In the WHO Global Health Estimates, injury is the 8th leading cause of death globally (2019), and TBI is a major component of injury

Statistic 36

0.7 per 1,000 children (ages 0–17) were hospitalized with TBI in the U.S. in 2016–2019

Statistic 37

Traumatic brain injury is the leading cause of death and disability in children and young adults in many high-income settings (injury-related burden)

Statistic 38

In-hospital mortality for severe TBI in a large national database was 30.9%

Statistic 39

Adults aged 65+ accounted for 19.5% of TBI-related emergency department visits in the U.S. (2019)

Statistic 40

U.S. annual economic burden of TBI was estimated at $76.5 billion (2013 dollars) in an Institute of Medicine/CDC synthesis

Statistic 41

A 2018 systematic review reported that patients with TBI had increased risk of developing epilepsy compared with controls (pooled hazard ratio reported across studies)

Statistic 42

A 2020 Cochrane review found evidence that structured rehabilitation interventions can improve functional outcomes after TBI compared with usual care (effect size reported)

Statistic 43

In a randomized controlled trial, early cognitive rehabilitation after mild TBI improved neurocognitive performance at follow-up compared with standard care (group difference reported)

Statistic 44

A 2019 clinical practice guideline recommends individualized vestibular rehabilitation for patients with persistent post-concussion dizziness (recommendation strength stated)

Statistic 45

A 2021 guideline states that patients with persistent symptoms after mild TBI may benefit from multidisciplinary care (recommendation statement)

Sources
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Marcus Afolabi

Written by Marcus Afolabi·Edited by Rajesh Patel·Fact-checked by Katherine Brennan

Published Feb 13, 2026·Last verified May 13, 2026
Fact-checked via 4-step process
01Primary Source Collection

Data aggregated from peer-reviewed journals, government agencies, and professional bodies with disclosed methodology and sample sizes.

02Editorial Curation

Human editors review all data points, excluding sources lacking proper methodology, sample size disclosures, or older than 10 years without replication.

03AI-Powered Verification

Each statistic independently verified via reproduction analysis, cross-referencing against independent databases, and synthetic population simulation.

04Human Cross-Check

Final human editorial review of all AI-verified statistics. Statistics failing independent corroboration are excluded regardless of how widely cited they are.

Read our full methodology →

Statistics that fail independent corroboration are excluded.

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

Epidemiology

169% of people with traumatic brain injury (TBI) have at least one other injury in addition to the head injury[1]
Verified
2About 1.7 million TBI-related emergency department visits occur in the U.S. among adults aged 75+ (annual estimate)[2]
Verified
3A 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[3]
Verified
4In a CDC emergency department surveillance study, 53% of TBI ED visits were classified as mild TBI[4]
Verified
51.7 million TBI-related emergency department visits occur in the U.S. among adults aged 75+ (annual estimate)[5]
Single source
6In the U.S., “other” external causes accounted for 4% of TBI-related ED visits (2017–2019 national estimates, weighted analysis)[6]
Directional

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.

Economic Impact

1Globally, traumatic brain injury is associated with an estimated 27 million disability-adjusted life years (DALYs) lost per year[7]
Verified
2Globally, traumatic brain injury is associated with 0.69% of all years of life lost (YLLs) in the Global Burden of Disease (GBD) study[8]
Directional
3The Global Burden of Disease estimated 245 million disability-adjusted life years (DALYs) for TBI in 2016[9]
Single source
4The Global Burden of Disease estimated age-standardized incidence of TBI at 500.0 per 100,000 population in 2016[10]
Verified

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.

Clinical Outcomes

1In a large cohort of mild TBI, about 10% of patients had persistent symptoms at 3 months[11]
Verified
2In a multi-site observational study, nearly 30% of patients with mild TBI had persistent postconcussive symptoms at 90 days[12]
Verified
3Among adults with TBI, about 15–20% develop post-traumatic epilepsy (risk estimate range reported in major review literature)[13]
Verified
4Traumatic brain injury approximately triples the risk of developing Alzheimer’s disease and related dementias (reported association in cohort/observational literature synthesis)[14]
Directional
5In traumatic brain injury survivors, 25–33% report long-term cognitive impairments (range reported in review literature)[15]
Verified
6In a meta-analysis, 53% of patients with moderate-to-severe TBI had disability at follow-up (as measured by functional outcome scales)[16]
Verified
7In a large registry-based study, in-hospital mortality for severe TBI was about 30% (reported outcome rate for severe TBI cohort)[17]
Verified
8In a randomized trial, early rehabilitation within 24–72 hours after TBI improved functional outcome scores compared with later initiation[18]
Single source
9Cognitive-communication disorders occur in about 30–65% of individuals after TBI (reported prevalence range in clinical literature reviews)[19]
Verified
10Post-traumatic stress disorder (PTSD) occurs in about 10–20% of people after TBI (prevalence range reported in systematic review literature)[20]
Verified
11Depression occurs in about 30% of individuals after TBI (reported prevalence range in clinical reviews)[21]
Verified
12Risk of venous thromboembolism after TBI is elevated; pooled incidence reported around 20% in some cohorts[22]
Verified
13In a concussion return-to-play protocol, graded exertion typically progresses over 5 steps, each separated by at least 24 hours[23]
Verified

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.

Burden & Costs

161.2% of U.S. adults with a history of concussion reported at least one lifetime symptom (from CDC survey-based analysis)[24]
Verified

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.

Outcomes & Risk

17.3% of people with TBI report difficulty with self-care (survey-based prevalence)[25]
Verified
254% of athletes with diagnosed concussion reported not returning to play the same day (survey-based finding from U.S. sports concussion program data)[26]
Verified
3About 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)[27]
Verified
4A 2020 systematic review reported that post-traumatic fatigue affects about 18% of people after traumatic brain injury (pooled prevalence estimate across studies)[28]
Verified
5A 2021 cohort study found that patients with TBI had higher 1-year risk of epilepsy than those without TBI (risk increase quantified in study)[29]
Verified
6In 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)[30]
Verified
7In-hospital mortality for severe TBI was about 30% (reported outcome rate for severe TBI cohort)[31]
Single source

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.

Diagnosis And Follow Up

1In the U.S., TBI accounted for 1.2% of all injury-related emergency department visits in 2022[32]
Verified
2Lifetime prevalence of TBI among U.S. adults is about 9%[33]
Single source
3In a prospective observational study, 32% of patients with concussion reported persistent symptoms at 3 months (mild TBI follow-up)[34]
Verified

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.

Incidence And Burden

1In the WHO Global Health Estimates, injury is the 8th leading cause of death globally (2019), and TBI is a major component of injury[35]
Verified
20.7 per 1,000 children (ages 0–17) were hospitalized with TBI in the U.S. in 2016–2019[36]
Single source

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.

Severity Distribution

1Traumatic brain injury is the leading cause of death and disability in children and young adults in many high-income settings (injury-related burden)[37]
Verified
2In-hospital mortality for severe TBI in a large national database was 30.9%[38]
Single source

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.

Mechanisms And Risk

1Adults aged 65+ accounted for 19.5% of TBI-related emergency department visits in the U.S. (2019)[39]
Single source

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.

Outcomes And Costs

1U.S. annual economic burden of TBI was estimated at $76.5 billion (2013 dollars) in an Institute of Medicine/CDC synthesis[40]
Verified

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.

Treatment Pathways

1A 2018 systematic review reported that patients with TBI had increased risk of developing epilepsy compared with controls (pooled hazard ratio reported across studies)[41]
Verified
2A 2020 Cochrane review found evidence that structured rehabilitation interventions can improve functional outcomes after TBI compared with usual care (effect size reported)[42]
Verified
3In a randomized controlled trial, early cognitive rehabilitation after mild TBI improved neurocognitive performance at follow-up compared with standard care (group difference reported)[43]
Verified
4A 2019 clinical practice guideline recommends individualized vestibular rehabilitation for patients with persistent post-concussion dizziness (recommendation strength stated)[44]
Directional
5A 2021 guideline states that patients with persistent symptoms after mild TBI may benefit from multidisciplinary care (recommendation statement)[45]
Single source

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.

How We Rate Confidence

Models

Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.

Single source
ChatGPTClaudeGeminiPerplexity

Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.

AI consensus: 1 of 4 models agree

Directional
ChatGPTClaudeGeminiPerplexity

Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.

AI consensus: 2–3 of 4 models broadly agree

Verified
ChatGPTClaudeGeminiPerplexity

All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.

AI consensus: 4 of 4 models fully agree

Models

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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.

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