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Living in Rural Areas Tied to Lower Early-Onset Colorectal Cancer Survival

By Lori Solomon HealthDay Reporter

Medically reviewed by Carmen Pope, BPharm. Last updated on Sep 1, 2024.

FRIDAY, Aug. 30, 2024 -- Patients with early-onset colorectal cancer (EO-CRC) living in rural areas have lower five-year survival rates than their urban-dwelling counterparts, according to a research letter published online Aug. 28 in JAMA Network Open.

Meng-Han Tsai, Ph.D., from the Georgia Prevention Institute at Augusta University, and colleagues examined the associations of EO-CRC mortality with persistent poverty, rurality, and the intersection of persistent poverty and rurality overall and within age groups. The analysis included 58,200 patients with EO-CRC identified from the 2006 to 2015 Surveillance, Epidemiology, and End Results Program.

The researchers found that overall, five-year survival was highest for those living in nonpoverty and nonrural areas (72 percent) and lowest for those living in poverty areas regardless of rurality (67 percent). There was some variation by age group (e.g., survival was 64 percent for those aged 20 to 29 years living in impoverished rural areas). Patients with EO-CRC who lived in rural areas alone had a 1.1-fold to 1.4-fold increased risk for CRC death versus patients living in nonrural areas (hazard ratios, 1.35, 1.26, and 1.12 for those aged 20 to 29, 30 to 39, and 40 to 49 years, respectively). For patients living in both poverty and rural areas, there was a 1.1-fold to 1.5-fold increased risk for CRC death versus patients living in nonrural areas (overall: hazard ratio, 1.29), with notably high estimates seen for those aged 30 to 39 years (hazard ratio, 1.51).

"Potential explanations for this association include patients with EO-CRC who lived in rural areas may have been diagnosed with later stage disease more frequently, underinsurance among younger adults, especially in nonexpanded Medicaid states with high rurality, or lower quality treatment received by patients in rural or impoverished areas," the authors write.

Abstract/Full Text

Disclaimer: Statistical data in medical articles provide general trends and do not pertain to individuals. Individual factors can vary greatly. Always seek personalized medical advice for individual healthcare decisions.

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Posted August 2024

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