Recurrence rates for colorectal cancer vary widely between institutions, showing a significant impact on surgical follow-up strategies.

• Hospital C had the highest recurrence rate at 26.2%, while Hospital A had the lowest at 11.4%.
• Most recurrences (80%) happened within 3 years, with a median time to recurrence of 1.6 years.

Improving surveillance adherence is crucial; overall adherence was only 45%, with non-adherence rates reaching 55.6% at Hospital C.

• Five-year cancer-specific survival was only 68.3% at Hospital C compared to higher rates at other hospitals.