One-way 180-Minute Drive Time to Mechanical Thrombectomy in Montana

Chronic Disease Map Gallery

At a glance

Eighty percent of Montanans ages 65 or older live within a 180-minute drive time to primary stroke centers with mechanical thrombectomy capabilities. However, geographic access to emergency mechanical thrombectomy is a concern in north central Montana.

Map

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This choropleth map of stroke hospitalization rates for ages 65 and older, all genders, for 2016-2018, features the borders for the one-way, 180-minute drive-times to three primary stroke centers in Montana with mechanical thrombectomy capability. The map displays Montana counties, Native American reservations, and Stroke Care hospitals. Montana stroke hospitalization rates ranged from 4.1 to 15.6 per 1,000 Medicare Beneficiaries; the highest rates occur in the north central part of the state.
One-way 180-Minute Drive Time to Mechanical Thrombectomy in Montana

Data sources

This choropleth map of stroke hospitalization rates for ages 65 and older, all genders, for 2016-2018, features the borders for the one-way, 180-minute drive-times to three primary stroke centers in Montana with mechanical thrombectomy capability. The map displays Montana counties, Native American reservations, and Stroke Care hospitals. Montana stroke hospitalization rates ranged from 4.1 to 15.6 per 1,000 Medicare Beneficiaries; the highest rates occur in the north central part of the state.

ArcGIS Pro 3.0

BRFSS/PLACES; Atlas of heart disease and stroke; U.S. Census; Montana Department of Public Health and Human Services, 2023.

The drive-time service area was ascertained using a GIS spatial analysis of facility locations and a networked dataset for roads and transportation. Population Weighted Centroids (PWC) were used to accurately reflect the distribution of people living in large, sparsely populated census areas; census tract population data was aggregated at PWC to spatially analyze the population of people ages over 65 years, living within the drive-time service area.

The map will inform DPHHS stakeholders and the public about the coverage of mechanic thrombectomy for stroke care across Montana; it will be available on the Montana Department of Public Health and Human Services (MTDPHHS) Map Gallery, the MTDPPHS Stroke Story Map, and the CDC Chronic Disease Map Gallery.

Abbie Phillip, Environmental Health Epidemiologist
MTDPHHS, Montana Department of Health
406-202-8866
abbie.phillip@mt.gov

Abbie Phillip, Environmental Health Epidemiologist, MTDPHHS, Montana Department of Health. Accessed from the Centers for Disease Control and Prevention's Chronic Disease Map Gallery.

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Content Source:
National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP); About the Division for Heart Disease and Stroke Prevention