Development and validation of a claims-based algorithm to identify incidents and determine the progression phases of gastric cancer cases in Japan.

ABSTRACT:

Background

Although health insurance claims data can address questions that clinical trials cannot answer, the uncertainty of disease names and the absence of stage information hinder their use in gastric cancer (GC) research. This study aimed to develop and validate a claims-based algorithm to identify and determine the progression phases of incident GC cases in Japan.

Methods

The gold standard for validation in this retrospective observational study was medical records of patients with incident GC who underwent specific treatments, defined by the claim codes associated with GC treatment. The algorithm was developed and refined using a cohort from two large tertiary care medical centers (April-September 2017 and April-September 2019) and subsequently validated using two ind

SUBMITTER: Inoue T 

PROVIDER: S-EPMC11794417 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature