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According to Newton’s second law of motion, the rate of change of the momentum of an object is the net external force acting on it. The total change in momentum between two timepoints thus depends on both the external force acting on it and the time over which it acts. Describing this mathematically, the total change of an object’s motion is proportional to the force vector and the time over which it is applied. This product is called impulse.
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Interpersonal Firearm Injury and Death in Portland, Oregon: 2018 Through 2021.

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Firearm injuries in Portland, Oregon, surged after 2020, with Black men experiencing the highest fatality rates. Portland

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Area of Science:

  • Public Health
  • Epidemiology
  • Urban Violence Studies

Background:

  • Portland, Oregon, has seen a historical increase in annual firearm injuries since 2020.
  • Interpersonal firearm injuries and fatalities represent a significant public health burden.

Purpose of the Study:

  • To analyze trends and demographics of interpersonal firearm injuries in Portland, Oregon.
  • To compare Portland's firearm injury rates with Seattle and San Francisco.
  • To identify geographic disparities in firearm injury incidence and mortality.

Main Methods:

  • Descriptive study analyzing Gun Violence Archives (GVA) data from 2018-2021.
  • Inclusion of all interpersonal firearm injury incidents in Portland.
  • Analysis of injury/fatality counts, demographics, and geographic locations.

Main Results:

  • A notable rise in interpersonal firearm injuries occurred after Oregon's first COVID-19 case, peaking in July 2020.
  • Black men faced over 11 times the firearm fatality rate per 100,000 compared to White men annually.
  • Portland exhibited higher rates of firearm injuries and fatalities than Seattle and San Francisco during the study period.
  • Neighborhoods near Downtown and on the Eastside reported the highest injury and fatality rates, while the Southwest showed the lowest.

Conclusions:

  • Interpersonal firearm injuries and fatalities in Portland have reached unprecedented levels.
  • Significant racial disparities exist in firearm injury outcomes, particularly affecting Black men.
  • Geographic variations in injury and fatality rates highlight the need for localized public health interventions.
  • Understanding the burden of firearm injury is crucial for developing effective prevention strategies and research.