Observational studyJournal of clinical oncology : official journal of the American Society of Clinical Oncology2015
Association Between Geographic Access to Cancer Care, Insurance, and Receipt of Chemotherapy: Geographic Distribution of Oncologists and Travel Distance.
Observational study in Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 141 papers, 2 of them syntheses that pooled it.
What it found
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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.
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.
Does Geography and Place of Residence Affect Cancer Care: An Interview Study
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Who cites it
141 citing papers in PubMed, 2 syntheses or guidelines pooled it, 257 citations in OpenAlex.
- Disparities in Surgical Access: A Systematic Literature Review, Conceptual Model, and Evidence Map.Journal of the American College of Surgeons · 2019Pooled it
- Pooled it
- Use of adjuvant chemotherapy in patients with stage III colon cancer in Puerto Rico: A population-based study.PloS one · 2018Trial
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- Trends and current status in anticancer therapy for older patients with non-small cell lung cancer in Japan, 2016-2021.International journal of clinical oncology · 2026Article
- The Impact of Pre-Existing Psychiatric Disorders on Gastric Cancer Stage and Mortality in Older Adults.Cancer medicine · 2026Article
- Disparities in utilization of high-volume thyroid surgeons for Graves disease: a statewide analysis.Journal of the Endocrine Society · 2026Article
- Impact of age and rurality on colorectal cancer outcomes in the United States.Cancer causes & control : CCC · 2026Article
- Article
- Differences in prostate cancer treatment receipt and timeliness of treatment between African American/Black and White Iowans.Cancer causes & control : CCC · 2025Article
- Where, when, and how to close dialysis access gaps: incorporation of geographic information system into data-driven planning : A commentary.Israel journal of health policy research · 2025Article
- Geographic Access to Cancer Care and Breast Cancer Treatment in Low-Income Women.Medical care · 2025Article
- Beyond Barriers: Achieving True Equity in Cancer Care.Current oncology (Toronto, Ont.) · 2025Review
- Children with medulloblastoma treated with modified ACNS0821 temozolomide, irinotecan, and bevacizumab: The Seattle Children's Hospital experience.Neuro-oncology practice · 2025Article
- "It really takes a village": perspectives on multi-level barriers to endometrial cancer care for rural patients.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025Article
- Article
- Rural-Urban Disparities in Cancer Care-Analyzing Routinely Collected Patient-Reported Outcomes. A Cross-Sectional Study.Cancer medicine · 2025Article
- Drive Time to Physicians and Outcomes for Bladder Cancer.JU open plus · 2025Article
- Delays in phases of care from identification to treatment of suspicious lung nodules.JTCVS open · 2025Article
81 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
16 authors at 1 institution in 1 country.
Funding
Abstract
purposeGeographic access to care may be associated with receipt of chemotherapy but has not been fully examined. This study sought to evaluate the association between density of oncologists and travel distance and receipt of adjuvant chemotherapy for colon cancer within 90 days of colectomy. PATIENTS AND
methodsPatients in the National Cancer Data Base with stage III colon cancer, diagnosed between 2007 and 2010, and age 18 to 80 years were selected. Generalized estimating equation clustering by hospital service area was conducted to examine the association between geographic access and receipt of oncology services, controlling for patient sociodemographic and clinical characteristics.
resultsOf 34,694 patients in the study cohort, 75.7% received adjuvant chemotherapy within 90 days of colectomy. Compared with travel distance less than 12.5 miles, patients who traveled 50 to 249 miles (odds ratio [OR], 0.87; P=.009) or ≥250 miles (OR, 0.36; P<.001) had decreased likelihood of receiving adjuvant chemotherapy. Density level of oncologists was not statistically associated with receipt of adjuvant chemotherapy (low v high density: OR, 0.98; P=.77). When stratifying analyses by insurance status, non-privately insured patients who resided in areas with low density of oncologists were less likely to receive adjuvant chemotherapy (OR, 0.85; P=.03).
conclusionIncreased travel burden was associated with a decreased likelihood of receiving adjuvant chemotherapy, regardless of insurance status. Patients with nonprivate insurance who resided in low-density oncologist areas were less likely to receive adjuvant chemotherapy. If these findings are validated prospectively, interventions to decrease geographic barriers may improve the timeliness and quality of colon cancer treatment.
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What OpenQuestion holds
Registered trials
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.