When traumatic brain injuries (TBIs) are discussed publicly, the focus often lands on sports concussions and major car crashes. But a closer look at the data reveals a broader and more complex crisis — one shaped by gender, geography, and high-risk occupations, and compounded by brain injuries that often go undiagnosed or underreported. This study from Siegfried & Jensen presents this data.
Each year, around 2.5 million people in the United States sustain a TBI, an event that can trigger lasting cognitive impairment, emotional instability, mobility challenges, and in severe cases, death. While TBIs occur across all ages and environments, certain groups bear a disproportionate burden, and the reasons aren’t just biological. They’re structural.
One of the clearest disparities appears in gender outcomes. Men account for about 60% of TBI-related hospitalizations and roughly 73% of TBI-related deaths. This gap reflects increased exposure to high-impact risk scenarios: motor vehicle and motorcycle crashes, physical altercations, and hazardous work environments. From adolescence through adulthood, males are more likely to be involved in activities that increase the likelihood of moderate to severe brain injury, and they are also less likely to report symptoms early, particularly when the injury appears “minor.”
The severity spectrum matters. Mild TBIs (concussions) represent the majority of cases — more than three-quarters, and they’re easy to dismiss, especially when the symptoms are subtle: brief confusion, headache, sensitivity to light, sleep disruption, mood swings, or “brain fog.” Moderate and severe TBIs occur less frequently, but they drive a disproportionate share of disability, hospitalization, and cost. They can involve prolonged unconsciousness, structural brain damage, abnormal imaging, or penetrating trauma. The consequences can stretch for years, altering employment, relationships, and independence.
The causes of TBIs also reveal why certain groups face higher death rates. Falls account for 28% of TBIs overall, motor vehicle crashes for 20%, and 19% come from being hit by or colliding with an object — a category that overlaps heavily with workplace accidents and sports impacts. Assaults make up 11%, while the remaining 12% are classified as other or unspecified. That blend shows TBIs aren’t confined to one “type” of person or place. But the risk rises sharply when environments combine force, speed, elevation, heavy objects, and delayed emergency care.
That’s where geography becomes a life-or-death factor.
In 2024, several states recorded particularly elevated fatal TBI rates per 100,000 residents, with Alaska leading the country. Alaska’s mortality rate reflects a combination of rural distances, extreme weather, delayed emergency response times, and elevated injury risks tied to transportation and falls. Other rural states also ranked high: Montana, Wyoming, South Dakota, and Idaho. In these regions, a severe head injury is more likely to become fatal because advanced neurological care may be hours away, and delays in treatment can dramatically worsen outcomes.
Notably, larger states appear on the high-mortality list as well, showing that modern medical infrastructure alone does not automatically erase risk. Wisconsin recorded a high number of TBI deaths, a pattern plausibly influenced by winter slip-and-fall hazards, rural highway crashes, and an aging population. South Carolina also ranked among the worst, pointing to broader systemic issues such as crash exposure and senior vulnerability. Ohio and Maryland appearing in the top group highlights that dense populations can still produce high fatality totals when roadway trauma, industrial exposure, and demographic risk factors stack up.
Workplace exposure adds another layer, and it’s often overlooked because many occupational TBIs don’t get categorized cleanly. Industries like construction, transportation, warehousing, agriculture, logging, mining, manufacturing, utilities, waste management, and public safety carry elevated TBI risk due to falls, struck-by incidents, vehicle events, and equipment-related trauma. The data is especially stark in agriculture and forestry: historically, that sector has recorded one of the highest fatal occupational TBI rates, with logging standing out as extraordinarily dangerous. In construction, brain injuries contribute to a significant share of workplace fatalities, frequently tied to falls from height.
A major issue is that workplace TBIs can be undercounted. Concussion symptoms often appear hours later. Injuries may be labeled vaguely as “head injury.” And some workers may avoid reporting symptoms out of fear of job loss, stigma, or pressure to keep a project moving. Underreporting means missed medical intervention, missed accommodations, and, in the worst cases, preventable long-term impairment.
This study also highlights an often-unseen TBI pathway: intimate partner violence (IPV). Research suggests a large share of domestic violence survivors sustain head trauma, and repeated injuries can produce chronic neurological harm. Because these injuries are frequently unreported and untreated, they remain underrepresented in official statistics — even though the consequences can be severe, persistent, and life-altering.
Ultimately, TBIs aren’t just “accidents.” They are the predictable result of preventable hazards: unsafe fall environments, high-risk occupational conditions, roadway dangers, and violence. Effective prevention requires layered strategies: better fall safety and home modifications, stronger helmet and seat belt adherence, workplace protections that treat brain trauma as a core safety issue, and support systems that reduce violence and expand access to care.
