Socioeconomic Status and Gastric Cancer Survival in Japan

Gastric Cancer. 2010 Nov;13(4):222-30. doi: 10.1007/s10120-010-0561-4. Epub 2010 Dec 3.

Abstract

Background: Few studies have investigated the association between socioeconomic status and the survival of cancer patients in Japan.

Methods: We examined whether occupation or educational level was associated with the survival of 725 gastric cancer patients who were diagnosed within an ongoing large population-based cohort study.

Results: After adjustment for age at diagnosis, and sex, we found that, compared with professionals or office workers, unemployed subjects (hazard ratio [HR], 2.23; 95% confidence interval [CI], 1.27-3.92) and manual laborers (HR, 1.68; 95% CI, 1.07-2.62) had an increased risk of gastric cancer death. After further adjustment for the clinical extent of disease, the increased risk disappeared. Educational level was not associated with the risk.

Conclusions: These findings suggest that a disparity in survival by occupation exists among Japanese gastric cancer patients, largely due to a lower proportion of early disease among the unemployed and manual laborers.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Educational Status
  • Female
  • Follow-Up Studies
  • Health Status Disparities*
  • Humans
  • Japan / epidemiology
  • Male
  • Middle Aged
  • Occupations / statistics & numerical data*
  • Risk Factors
  • Social Class*
  • Stomach Neoplasms / mortality*
  • Survival Analysis
  • Unemployment / statistics & numerical data