Does patient rurality predict quality colon cancer care?: A population-based study.

Area of Science:

• Oncology
• Public Health
• Health Services Research

Background:

• Over 50 million Americans live in rural areas.
• Rurality's impact on colon cancer care is not fully understood, despite known effects on screening.
• Colon cancer affects individuals across diverse geographic locations.

Purpose of the Study:

• To investigate how patient rurality influences the quality and comprehensiveness of colon cancer care.
• To analyze the association between rural residence and key aspects of colon cancer management.

Main Methods:

• Retrospective cohort study of 123,129 patients with stage 0-IV colon cancer using the California Cancer Registry (1996-2008).
• Rural residence defined by patient medical service study area.
• Multivariate and proportional-hazards regression models used to assess rurality's impact on diagnosis stage, lymphadenectomy, chemotherapy receipt, and cancer-specific survival.

Main Results:

• 15% (18,735) of colon cancer patients resided in rural areas.
• Rurality was associated with later stage at diagnosis.
• Rural patients showed inadequate lymphadenectomy and lower chemotherapy receipt for stage III disease, alongside worse cancer-specific survival.

Conclusions:

• Rural residence is linked to disparities in colon cancer care, including diagnosis, quality measures, and survival.
• Limitations include inability to directly assess socioeconomic status, treatment distance, and provider volume.
• Targeted interventions are needed to improve colon cancer care for the rural population.