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Updated: Jun 23, 2025

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
Published on: September 27, 2024
Risk Factors for Suboptimal Colon Cancer Diagnosis and Management at a Safety-Net Hospital System
Ju Young Lee1, Erik Pihl2, Hye Kwang Kim3
1David Geffen School of Medicine, UCLA, Los Angeles, California.
This study found no significant demographic factors delaying colon cancer diagnosis or treatment. Delays were primarily due to optimizing comorbidities before surgery and surgery delays impacting chemotherapy initiation.
Area of Science:
- Oncology
- Public Health
- Health Services Research
Background:
- Colon cancer (CC) is a leading cause of cancer mortality in the US.
- Quality measures exist for optimal CC management.
- This study investigated delays in CC diagnosis and treatment at a safety-net hospital.
Purpose of the Study:
- Identify factors hindering timely diagnosis and treatment of colon cancer.
- Analyze delays from positive fecal immunochemical test to colonoscopy.
- Examine delays from diagnosis to surgery and adjuvant chemotherapy.
Main Methods:
- Retrospective chart review of 190 nonmetastatic CC patients (2018-2021).
- Primary outcomes: time to colonoscopy, surgery, and chemotherapy.
- Secondary outcomes: demographic factors associated with delays.
Main Results:
- 74.1% had colonoscopy within 180 days of positive fecal test.
- 59.6% of nonemergent cases had surgery within 60 days.
- 77% eligible received chemotherapy within 120 days.
- No significant demographic factors correlated with delays.
- Comorbidity optimization (38.0%) and prior surgery delays (71.4%) were key reasons.
Conclusions:
- No significant demographic factors were linked to delays in colon cancer care.
- Care delays were mainly attributed to medical management and treatment sequencing.
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