Conditional Relative Survival Among Patients With Gastric Cancer Undergoing Surgery: A Hospital-Based Cohort Study.

ABSTRACT:

Purpose

Conditional relative survival (CRS) estimates the probability of survival after surgery compared with the general population. We assessed 5-year CRS up to 5 years after gastric resection.

Materials and methods

We analyzed 15,601 gastric cancer patients who underwent gastric resection between 1996 and 2018. Relative survival (RS) was defined as the ratio of observed survival in cancer patients to the expected survival in the general population. The 5-year CRS was the 5-year RS among patients who had survived a given number of years after surgery.

Results

Five-year CRS increased from 87.2% at one year to 95.4% at 5 years post-surgery. The most substantial increase was observed in stage III cancer, from 53.2% at one year to 85.2% at 5 years. If patients survived

SUBMITTER: Park H 

PROVIDER: S-EPMC12536196 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature