Global Stage Distribution of Breast Cancer at Diagnosis: A Systematic Review and Meta-Analysis.

ABSTRACT:

Importance

Stage at diagnosis is a key prognostic factor for cancer survival.

Objective

To assess the global distribution of breast cancer stage by country, age group, calendar period, and socioeconomic status using population-based data.

Data sources

A systematic search of MEDLINE and Web of Science databases and registry websites and gray literature was conducted for articles or reports published between January 1, 2000, and June 20, 2022.

Study selection

Reports on stage at diagnosis for individuals with primary breast cancer (C50) from a population-based cancer registry were included.

Data extraction and synthesis

Study characteristics and results of eligible studies were independently extracted by 2 pairs of reviewers (J.D.B.F., A.D.A., A.M., R.S.,

SUBMITTER: Benitez Fuentes JD 

PROVIDER: S-EPMC10636649 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature