TY - JOUR
T1 - Transcatheter Aortic Valve Replacement in Low-Population Density Areas
T2 - Assessing Healthcare Access for Older Adults with Severe Aortic Stenosis
AU - Damluji, Abdulla A.
AU - Fabbro, Michael
AU - Epstein, Richard H.
AU - Rayer, Stefan
AU - Wang, Ying
AU - Moscucci, Mauro
AU - Cohen, Mauricio G.
AU - Carroll, John D.
AU - Messenger, John C.
AU - Resar, Jon R.
AU - Cohen, David J.
AU - Sherwood, Matthew W.
AU - O'Connor, Christopher M.
AU - Batchelor, Wayne
N1 - Publisher Copyright:
© 2020 Lippincott Williams and Wilkins. All rights reserved.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - Background: Restricting transcatheter aortic valve replacement (TAVR) to centers based on volume thresholds alone can potentially create unintended disparities in healthcare access. We aimed to compare the influence of population density in state of Florida in regard to access to TAVR, TAVR utilization rates, and in-hospital mortality. Methods and Results: From 2011 to 2016, we used data from the Agency for Health Care Administration to calculate travel time and distance for each TAVR patient by comparing their home address to their TAVR facility ZIP code. Travel time and distance, TAVR rates, and mortality were compared across categories of low to high population density (population per square miles of land). Of the 6531 patients included, the mean (SD) age was 82 (9) years, 43% were female and 91% were White. Patients residing in the lowest category (<50/square miles) were younger, more likely to be men, and less likely to be a racial minority. Those residing in the lowest category density faced a longer unadjusted driving distances and times to their TAVR center (mean extra distance [miles]=43.5 [95% CI, 35.6-51.4]; P<0.001; mean extra time (minutes)=45.6 [95% CI, 38.3-52.9], P<0.001). This association persisted regardless of the methods used to determine population density. Excluding uninhabitable land, there was a 7-fold difference in TAVR utilization rates in the lowest versus highest population density regions (7 versus 45 per 100 000, P-for-pairwise-comparisons <0.001) and increase in TAVR in-hospital mortality (adjusted OR, 6.13 [95% CI, 1.97-19.1]; P<0.001). Conclusions: Older patients living in rural counties in Florida face (1) significantly longer travel distances and times for TAVR, (2) lower TAVR utilization rates, and (3) higher adjusted TAVR mortality. These findings suggest that there are trade-offs between access to TAVR, its rate of utilization, and procedural mortality, all of which are important considerations when defining institutional and operator requirements for TAVR across the country.
AB - Background: Restricting transcatheter aortic valve replacement (TAVR) to centers based on volume thresholds alone can potentially create unintended disparities in healthcare access. We aimed to compare the influence of population density in state of Florida in regard to access to TAVR, TAVR utilization rates, and in-hospital mortality. Methods and Results: From 2011 to 2016, we used data from the Agency for Health Care Administration to calculate travel time and distance for each TAVR patient by comparing their home address to their TAVR facility ZIP code. Travel time and distance, TAVR rates, and mortality were compared across categories of low to high population density (population per square miles of land). Of the 6531 patients included, the mean (SD) age was 82 (9) years, 43% were female and 91% were White. Patients residing in the lowest category (<50/square miles) were younger, more likely to be men, and less likely to be a racial minority. Those residing in the lowest category density faced a longer unadjusted driving distances and times to their TAVR center (mean extra distance [miles]=43.5 [95% CI, 35.6-51.4]; P<0.001; mean extra time (minutes)=45.6 [95% CI, 38.3-52.9], P<0.001). This association persisted regardless of the methods used to determine population density. Excluding uninhabitable land, there was a 7-fold difference in TAVR utilization rates in the lowest versus highest population density regions (7 versus 45 per 100 000, P-for-pairwise-comparisons <0.001) and increase in TAVR in-hospital mortality (adjusted OR, 6.13 [95% CI, 1.97-19.1]; P<0.001). Conclusions: Older patients living in rural counties in Florida face (1) significantly longer travel distances and times for TAVR, (2) lower TAVR utilization rates, and (3) higher adjusted TAVR mortality. These findings suggest that there are trade-offs between access to TAVR, its rate of utilization, and procedural mortality, all of which are important considerations when defining institutional and operator requirements for TAVR across the country.
KW - accreditation
KW - hospital mortality
KW - minority
KW - population density
KW - registries
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U2 - 10.1161/CIRCOUTCOMES.119.006245
DO - 10.1161/CIRCOUTCOMES.119.006245
M3 - Article
C2 - 32813564
AN - SCOPUS:85089714241
SP - 538
EP - 549
JO - Circulation: Cardiovascular Quality and Outcomes
JF - Circulation: Cardiovascular Quality and Outcomes
SN - 1941-7713
ER -