Evidence map›Paper›PMID 41500462›Full record

ArticleJournal of cancer policy2026

Geographic disparities in access to oncologists and association with cancer outcomes in the United States.

Ryan J Crowley, Jag S Lally, David M Kline, Amanda M Bunting

Abstract read
In one paragraph

Article in Journal of cancer policy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Ryan J CrowleyDepartment of Population Health, New York University Grossman School of Medicine, NY, United States. Electronic address: ryan.crowley@nyulangone.org.
Jag S LallyUniversity of Rochester Medical Center, NY, United States.
David M KlineDepartment of Biostatistics and Data Science, Wake Forest University School of Medicine, NC, United States.
Amanda M BuntingDepartment of Population Health, New York University Grossman School of Medicine, NY, United States.

Funding

Project-005UL1TR001445 · NCATS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BREDELLA, MIRIAM ANTOINETTE, HOCHMAN, JUDITH S · 2015 to 2025
$103.5M
Development of a novel polysubstance assessment tool for vulnerable subpopulationsK01DA053435 · NIDA · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BUNTING, AMANDA M · 2021 to 2025
$909k
NCATS NIH HHS UL1 TR001445NIDA NIH HHS K01 DA053435
6 · The paper itself

Abstract

backgroundAccess to oncologists is crucial to quality cancer care. We aimed to assess the geospatial distribution of oncologists in the United States and its association with cancer mortality.

methodsWe used county-level oncologist data from the 2025 Doctors and Clinicians national downloadable file and county-level cancer outcome data from the 2018-2022 State Cancer Profiles. We assessed urban-rural differences in the distribution of oncologists in the United States and used Local Moran's I to identify clusters of high and low oncologist density and cancer mortality rates. We classified counties using the 2023 Rural-Urban Continuum Codes (RUCC) with RUCC 1-3 as urban and RUCC 4-9 as rural.

results13,332 oncologists were identified nationwide. The median oncologist density per 100,000 population was 6.0 in urban counties and 0.0 in rural counties (p-value <0.001). The median age-adjusted cancer mortality rate per 100,000 population was 156.1 in urban counties and 166.8 in rural counties (p-value <0.001). Clusters of low oncologist density were observed in the South.

conclusionThere are significant geospatial differences in oncologist accessibility and cancer outcomes. Targeted interventions are necessary to ensure that rural areas maintain access to oncology care.

Indexed as

Healthcare DisparitiesHealth Services AccessibilityNeoplasmsOncologistsFemaleHumansMaleRural PopulationUnited StatesUrban PopulationHealth equityHealth services accessibilityNeoplasmsOncologists

Identifiers

PMID41500462
PMCPMC12798815

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.