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Sustaining Improvements in Colorectal Cancer Across Delaware:: A Look at Racial Disparities a Decade Later.

Diane Ng1, Stephanie Belinske2, Dawn Hollinger3

  • 1Research Associate, Westat.

Delaware Journal of Public Health
|August 30, 2024
PubMed
Summary

Delaware sustained improvements in colorectal cancer (CRC) incidence and mortality rates, showing no significant racial disparities a decade later. Ongoing monitoring is crucial to eliminate remaining disparities and ensure early diagnosis.

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Area of Science:

  • Public Health
  • Cancer Epidemiology
  • Health Disparities Research

Background:

  • A prior statewide initiative in Delaware successfully reduced racial disparities in colorectal cancer (CRC) outcomes.
  • It is essential to assess the long-term sustainability of these improvements and the current cancer burden in Delaware.

Purpose of the Study:

  • To evaluate if the improvements in CRC racial disparities have persisted over the past decade.
  • To assess the current status of Delaware's cancer burden, focusing on colorectal cancer.

Main Methods:

  • Utilized data from the Delaware Cancer Registry, CDC's National Center for Health Statistics, and CDC's Behavioral Risk Factor Surveillance System.
  • Calculated age-adjusted incidence and mortality rates, comparing non-Hispanic Black and non-Hispanic White populations using rate ratios.
  • Analyzed cancer stage distributions and CRC screening prevalence by race/ethnicity over different time periods.

Main Results:

  • Colorectal cancer incidence and mortality rates decreased for both non-Hispanic Black and non-Hispanic White populations between 2006-2010 and 2015-2019.
  • No significant differences in CRC incidence or mortality rates were observed between racial groups in either period.
  • Cancer stage distribution and adherence to CRC screening recommendations showed no significant racial disparities in the evaluated timeframes.

Conclusions:

  • Delaware has successfully maintained improvements in CRC incidence, mortality rates, and reduced racial disparities.
  • Continued surveillance of CRC trends and outcomes is necessary to ensure early detection and achieve health equity.