Non-Colorectal Cancer-Related Deaths in Patients With Early-Onset Colorectal Cancer: A Population-Based Study

Area of Science:

• Oncology
• Public Health
• Epidemiology

Background:

• Early-onset colorectal cancer (EOCRC) presents unique challenges in patient outcomes.
• Understanding non-cancer-related mortality is crucial for comprehensive patient care.

Purpose of the Study:

• To determine the causes of death in patients diagnosed with early-onset colorectal cancer (EOCRC).
• To identify demographic and disease-specific factors associated with non-CRC-related deaths in EOCRC patients.

Main Methods:

• Utilized the SEER database (2000-2020) to identify patients with EOCRC.
• Classified causes of death into CRC-related and non-CRC-related categories.
• Stratified analyses by patient demographics, tumor location, and cancer stage.

Main Results:

• Out of 67,353 EOCRC patients, 13.2% of deaths were unrelated to CRC.
• Medical conditions (36.1%), primarily heart disease (16.6%), were the leading causes of non-CRC-related deaths.
• Factors like age (40-50 years), male sex, Black race, and early-stage CRC were associated with higher non-CRC-related mortality.

Conclusions:

• Medical conditions and other primary cancers are significant contributors to mortality in EOCRC.
• Specific patient demographics (older age, male, Black, Asian) and early-stage disease are linked to non-CRC-related deaths.
• Surgical intervention for CRC and the presence of multiple primary cancers increased the likelihood of non-CRC-related death.