Epidemiology of Gastric Cancer in Korea (1999-2022): Incidence, Survival, and 5-Year Conditional Relative Survival.

ABSTRACT:

Purpose

This study evaluated long-term trends in gastric cancer epidemiology and survival with a focus on conditional relative survival (CRS).

Materials and methods

Using the Korea Central Cancer Registry, we analyzed 665,184 patients who were newly diagnosed with gastric cancer between 1999 and 2022. The study period was divided into four intervals: Period I (1999-2005), Period II (2006-2011), Period III (2012-2017), and Period IV (2018-2022). Temporal trends in the incidence and mortality were assessed using crude and age-standardized rates. Relative survival was estimated using the Ederer II method, and the 5-year CRS was calculated according to the survival duration after diagnosis.

Results

The incidence of gastric cancer increased until 2011 and subsequently decl

SUBMITTER: Park KB 

PROVIDER: S-EPMC12802026 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature