Geographic Availability of Low-Dose Computed Tomography for Lung Cancer Screening in the United States, 2017
GIS SNAPSHOTS — Volume 15 — October 4, 2018
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 |
The opinions expressed by authors contributing to this journal do not necessarily reflect the opinions of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors’ affiliated institutions.