Sociodemographic Risk Factors in Therapy Delays and Associated Increased Mortality Among Colorectal Cancer Patients in the US: Insights from Surveillance, Epidemiology, and End Results Program.

Abstract

We investigated the impact of racial/ethnic disparities in therapy initiation on colorectal cancer (CRC) mortality using Surveillance, Epidemiology, and End Results Program (SEER) database.

Adults aged 18-84 years with CRC were identified. Cox models for 60-month all-cause and cancer-specific mortality were adjusted for demographics, stage, tumor site, income, and rural-urban residence.

Therapy initiation was slower for Hispanics (HR 0.85) and non-Hispanic Black (NHB) patients (HR 0.80) compared with non-Hispanic Whites (p < 0.001). Each additional month of delay was associated with a 3% increase in cancer mortality (p < 0.001). Findings were consistent across diagnosis eras, with no significant race-by-era interaction, and adjustment for socioeconomic and geographic factors resulted in minimal attenuation of racial disparities.

Treatment delays independently contribute to all-cause and cancer-specific mortality, disproportionately affecting NHB and lower-SES patients.

EDRN PI Authors
Medline Author List
  • Ali H
  • Bilal M
  • Dahiya DS
  • Hayat U
  • Moond V
  • Shaukat A
PubMed ID
Sources
  • Cancer Data Expo
Appears In
Dig Dis Sci, 2026 Sep (issue 9)