Effect of time to treatment and comprehensive care at commission on cancer-accredited practices on survival in rural patients with colorectal cancer.

Authors

null

Suneel Deepak Kamath

Cleveland Clinic Taussig Cancer Institute, Cleveland, OH

Suneel Deepak Kamath, Katherine Tullio, Wei Wei, Gregory S. Cooper, Alok A. Khorana

Organizations

Cleveland Clinic Taussig Cancer Institute, Cleveland, OH, Cleveland Clinic Foundation, Cleveland, OH, University Hospitals Case Medical Center, Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, Cleveland Clinic-Taussig Cancer Institute, Cleveland, OH

Research Funding

No funding received
None.

Background: Rural cancer care in the United States has unique challenges from variable access to care. This study examined differences in time to first treatment (TTT), a surrogate for access, and predictors of overall survival (OS) between rural and non-rural colorectal cancer (CRC) patients. Methods: Patients with stage I-III CRC from 2004-2012 in the National Cancer Database of Commission on Cancer (CoC)-accredited facilities were included and categorized into rural and non-rural groups. Differences in demographic, disease characteristics, socioeconomic (SE) factors and TTT (< 4 weeks, 4-8 weeks and > 8 weeks) between rural and non-rural patients were assessed by Chi-square test. The effect of demographics, SE factors, and TTT on OS were assessed using Cox models. Results: The study population comprised 605,913, 11,649 (2%) of whom were rural. Compared to non-rural patients, rural patients were more likely to be age > 65, male, Caucasian, receive care at non-academic centers, have government insurance, have lower income and less education (p<0.0001 for all). Significant demographic and SE differences are shown in Table. Rural patients had similar mean TTT compared to non-rural patients (2.76 vs. 2.84 weeks, p = 0.35). Slightly more rural patients had TTT < 4 weeks (77% vs. 75%, p <0.0001). Shorter TTT (both <4 weeks vs. 8 weeks and 4-8 weeks vs. > 8 weeks) was associated with improved OS (HR: 0.87, 95% CI: 0.85-0.89, p<0.0001 and HR: 0.74, 95% CI: 0.73-0.76, p<0.0001, respectively). After adjusting for demographic, disease and SE factors, rural status was associated with modestly better OS compared to non-rural status (HR: 0.96, 95% CI: 0.92-0.99, p=0.006). Conclusions: Despite several adverse demographic and socioeconomic factors, rural CRC patients had modestly better OS compared to non-rural patients. Rural and non-rural CRC patients had similar TTT in this cohort. These data suggest the comprehensive cancer care delivered by CoC-accredited practices is associated with rapid TTT and improved OS in rural CRC patients. It is unclear whether our data apply to non-CoC-accredited facilities in rural United States.

RuralNon-RuralP value
Age > 6565%62%<0.0001
Female Gender46%49%<0.0001
Race
Caucasian92%85%<0.0001
African American6%11%
Other2%3%
Academic Center15%26%<0.0001
Private vs. Government Insurance26% vs. 69%35% vs. 60%<0.0001
Community Median Income < $38,00043%17%<0.0001
% No High School Degree ≥ 21%33%17%<0.0001
Time to Treatment (weeks)2.762.840.35

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Abstract Details

Meeting

2020 ASCO Quality Care Symposium

Session Type

Poster Session

Session Title

On-Demand Poster Session: Health Equity and Disparities

Track

Health Care Access, Equity, and Disparities

Sub Track

Geographic Disparities

Citation

J Clin Oncol 38, 2020 (suppl 29; abstr 109)

DOI

10.1200/JCO.2020.38.29_suppl.109

Abstract #

109

Poster Bd #

Online Only

Abstract Disclosures

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