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Geographic Availability of Low-Dose Computed Tomography for Lung Cancer Screening in the United States, 2017

PEER REVIEWED

Panel A. Location of low-dose computed tomography (LDCT) screening centers in the United States and percentage of US population aged 55 to 79 who live without access to a screening center within 30 miles. Symbol indicates location of a LDCT screening center. Panel B. Lung cancer mortality per 100,000 persons and percentage of US population aged 55 to 79 without access to a screening center within 30 miles. Mortality and accessibility scores were classified into 3 groups (low, medium, high), each based on the natural breaks method, and combined for bivariate mapping: 1) high mortality/high access, 2) high mortality/medium access, 3) high mortality/low access, 4) medium mortality/high access, 5) medium mortality/medium access, 6) medium mortality/low access, 7) low mortality/high access, 8) low mortality/ medium access, and 9) low mortality/low access. These maps highlight state-level variation in LDCT screening availability and accessibility, as well as lung cancer mortality among persons of LDCT screening age. The maps help identify areas in need of LDCT screening program creation and/or expansion, particularly in rural areas.

Panel A. State Name (Including District of Columbia) No. of Centers Lung Cancer Mortality Per 100,000 Persons Proportion of Population Aged 55-79 Outside 30-Mile Buffer, %
Alabama 23 55.5 31
Alaska 3 47.6 49
Arizona 22 36.1 23
Arkansas 10 60.1 52
California 109 33.4 8
Colorado 33 31.7 20
Connecticut 40 39.4 0
Delaware 20 51.1 0
District of Columbia 3 40.3 0
Florida 114 43.8 5
Georgia 53 47.7 14
Hawaii 5 32.1 17
Idaho 9 37.0 38
Illinois 55 47.6 11
Indiana 45 55.1 11
Iowa 15 46.0 34
Kansas 9 46.6 38
Kentucky 49 69.6 13
Louisiana 21 55.1 12
Maine 6 52.5 33
Maryland 49 43.2 1
Massachusetts 57 43.7 2
Michigan 54 49.8 13
Minnesota 21 39.7 21
Mississippi 9 58.8 42
Missouri 28 55.3 27
Montana 2 41.2 82
Nebraska 11 43.1 32
Nevada 16 46.6 12
New Hampshire 10 46.2 15
New Jersey 81 39.8 0
New Mexico 4 31.6 42
New York 143 40.1 5
North Carolina 64 50.7 8
North Dakota 3 40.2 78
Ohio 78 52.8 7
Oklahoma 8 56.5 34
Oregon 18 44.0 27
Pennsylvania 134 46.4 1
Rhode Island 17 48.8 0
South Carolina 30 50.4 12
South Dakota 2 43.9 74
Tennessee 34 58.6 27
Texas 101 40.6 21
Utah 3 20.0 33
Vermont 5 47.1 17
Virginia 58 45.5 14
Washington 31 42.2 22.5
West Virginia 14 60.3 29
Wisconsin 18 44.2 32
Wyoming 1 36.7 86

 

 

Panel B. State Name (Including District of Columbia) State Mortality and Access Classification Legend Reference
Delaware High Mortality/High Access 7
Indiana High Mortality/High Access 7
Kentucky High Mortality/High Access 7
Louisiana High Mortality/High Access 7
Ohio High Mortality/High Access 7
Alabama High Mortality/Medium Access 8
Mississippi High Mortality/Medium Access 8
Missouri High Mortality/Medium Access 8
Oklahoma High Mortality/Medium Access 8
Tennessee High Mortality/Medium Access 8
West Virginia High Mortality/Medium Access 8
Maine High Mortality/Medium Access 8
Arkansas High Mortality/Low Access 9
Florida Medium Mortality/High Access 4
Georgia Medium Mortality/High Access 4
Illinois Medium Mortality/High Access 4
Maryland Medium Mortality/High Access 4
Massachusetts Medium Mortality/High Access 4
Michigan Medium Mortality/High Access 4
Nevada Medium Mortality/High Access 4
New Hampshire Medium Mortality/High Access 4
North Carolina Medium Mortality/High Access 4
Pennsylvania Medium Mortality/High Access 4
Rhode Island Medium Mortality/High Access 4
South Carolina Medium Mortality/High Access 4
Vermont Medium Mortality/High Access 4
Virginia Medium Mortality/High Access 4
Alaska Medium Mortality/Medium Access 5
Iowa Medium Mortality/Medium Access 5
Kansas Medium Mortality/Medium Access 5
Nebraska Medium Mortality/Medium Access 5
Oregon Medium Mortality/Medium Access 5
Texas Medium Mortality/Medium Access 5
Washington Medium Mortality/Medium Access 5
Wisconsin Medium Mortality/Medium Access 5
Montana Medium Mortality/Low Access 6
South Dakota Medium Mortality/Low Access 6
California Low Mortality/High Access 1
Connecticut Low Mortality/High Access 1
District of Columbia Low Mortality/High Access 1
Hawaii Low Mortality/High Access 1
New Jersey Low Mortality/High Access 1
New York Low Mortality/High Access 1
Minnesota Low Mortality/Medium Access 2
Arizona Low Mortality/Medium Access 2
Colorado Low Mortality/Medium Access 2
Idaho Low Mortality/Medium Access 2
New Mexico Low Mortality/Medium Access 2
Utah Low Mortality/Medium Access 2
North Dakota Low Mortality/Low Access 3
Wyoming Low Mortality/Low Access 3

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