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Traumatic Brain Injury, Alaska, 2016-2021
Katherine Newell1,2, Jared Parrish3, Joseph McLaughlin1
1Section of Epidemiology, Alaska Division of Public Health, Anchorage, AK, USA.
Public Health Reports (Washington, D.C. : 1974)
|April 28, 2025
Summary
Traumatic brain injuries (TBIs) are a significant public health issue in Alaska, with higher mortality rates than the national average. Prevention efforts must target specific high-risk groups, including older adults and American Indian/Alaska Native populations.
Area of Science:
- Public Health
- Epidemiology
- Traumatology
Background:
- Alaska exhibits disproportionately high rates of traumatic brain injury (TBI) mortality within the United States.
- Understanding the specific epidemiological patterns of TBI in Alaska is crucial for developing targeted prevention strategies.
Purpose of the Study:
- To characterize the epidemiology of TBI-associated hospitalizations and mortality in Alaska.
- To identify demographic and injury-specific factors contributing to TBI outcomes in the state.
Main Methods:
- A cross-sectional study analyzing TBI hospitalization and mortality data in Alaska from 2016-2021.
- Comparison of age-adjusted rates with national data, stratified by age, sex, race/ethnicity, and injury mechanism.
- Logistic regression was employed to identify predictors of mortality among hospitalized TBI patients.
Main Results:
- TBI hospitalization rates were highest among older adults (≥75 years), males, and American Indian/Alaska Native (AI/AN) individuals.
- Alaska's age-adjusted TBI mortality rate was double the national rate, with elevated rates across all demographics and mechanisms.
- Self-harm-related TBIs were associated with an 8.6-fold increased mortality risk compared to unintentional injuries; AI/AN individuals faced significant disparities.
Conclusions:
- TBIs represent a substantial burden of morbidity and mortality in Alaska, disproportionately affecting specific populations.
- There is an urgent need for mechanism-specific TBI prevention initiatives, with a focus on older adults and AI/AN communities.
