Epidemiology of Colon Cancer Screening in a Safety-Net Setting

Area of Science:

• Public Health
• Epidemiology
• Health Services Research

Background:

• Colon cancer screening is crucial for early detection and improved outcomes.
• Underserved populations face unique challenges in accessing and maintaining cancer screening.
• Safety-net public hospitals serve vulnerable patient groups requiring tailored health interventions.

Purpose of the Study:

• To describe the epidemiology of colon cancer screening.
• To analyze screening status changes and patient egress in an underserved population.
• To identify challenges in maintaining a colon cancer registry within a safety-net setting.

Main Methods:

• A cohort study was conducted in a primary care clinic at a safety-net public hospital.
• Patients aged 49-78 years were categorized by screening status and followed for 28 months.
• Patient egress was defined by lack of primary care visits over specified periods.

Main Results:

• Of 1,074 patients, 80% were screening eligible, 16% non-eligible, and 4% refused.
• Most patients (88%) retained their screening category over 28 months.
• Nearly half (47%) of patients were not evaluated due to egress, with many shifting from eligible to non-eligible status.

Conclusions:

• Maintaining colon cancer screening registries is complex due to dynamic patient status and attendance.
• Patient egress significantly impacts evaluation rates in this population.
• Integrating electronic health records regionally could streamline registry management.