The study, published in Annals of Emergency Medicine, used American Trauma Society Trauma Information Exchange Program data to calculate the number of state-certified level 1 trauma centers in each state in 2020. They then used census information to calculate the number of centers per capita in every state. Researchers identified 216 level 1 trauma centers across 45 states, and five states — Alaska, Idaho, Monana, South Dakota and Wyoming — were excluded for not having a level 1 trauma center.
In 2020, Arizona, Missouri, Vermont, Illinois and North Dakota have the highest number of level 1 trauma centers per capita and Washington, Oregon, Oklahoma, Utah and Nevada had the lowest number of level 1 trauma centers per capita.
Here are 45 states with the percent difference in median trauma centers per capita:
Alabama: 0% (median)
Arizona: 180.3%
Arkansas: -44.36%
California: -40.56%
Colorado: 15.97%
Connecticut: -6.76%
Delaware: 69.05%
Florida: -22.32%
Georgia: -37.48%
Hawaii: 15.58%
Illinois: 122.98%
Indiana: -25.89%
Iowa: 5.13%
Kansas: -42.91%
Kentucky: -25.58%
Louisiana: -27.89%
Maine: 23%
Maryland: -45.66%
Massachusetts: 67.81%
Michigan: 83.21%
Minnesota: 17.49%
Mississippi: -43.3%
Missouri: 172.53%
Nebraska: -14.55%
Nevada: -46.17%
New Hampshire: 21.66%
New Jersey: -27.65%
New Mexico: 58.34%
New York: 66.81%
North Carolina: -3.7%
North Dakota: 115.15%
Ohio: 70.59%
Oklahoma: -57.7%
Oregon: -60.49%
Pennsylvania: 67.78%
Rhode Island: 52.97%
South Carolina: 63.4%
Tennessee: 21.08%
Texas: -19.68%
Utah: -48.93%
Vermont: 160.87%
Virginia: -2.9%
Washington: -78.29%
West Virginia: 87.24%
Wisconsin: -14.67%
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