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Gastric Cancer Incidence in Those ≥50 Differs by Race/Ethnicity

Incidence of noncardia gastric adenocarcinoma higher in nonwhites than in non-Hispanic whites

THURSDAY, Aug. 6, 2020 (HealthDay News) — Significant differences are seen in gastric adenocarcinoma incidence according to race and ethnicity, according to a study published online Aug. 6 in Gastroenterology.

Shailja C. Shah, M.D., M.P.H., from the Veterans Affairs Tennessee Valley Health System in Nashville, and colleagues aimed to estimate the differences in gastric adenocarcinoma incidence in specific anatomic sites among races and ethnicities in individuals aged 50 years or older using data from the California Cancer Registry (CCR) from 2011 through 2015. For non-Hispanic white (NHW), non-Hispanic black, Hispanic, and the seven largest Asian American populations, the incidence of gastric adenocarcinoma was estimated in specific anatomic sites.

The researchers found that all nonwhite groups had significantly higher incidences of noncardia gastric adenocarcinoma compared with NHW individuals; the highest incidence was seen among Korean American men ≥50 years (70 cases per 100,000). The risk for noncardia gastric adenocarcinoma was 1.8- to 7.3-fold higher in most nonwhite groups compared with NHW individuals ≥50 years and 12- to 14.5-fold higher among Korean American men and women ≥50 years. All nonwhite men, except Japanese and Korean American men, had a significantly lower risk for cardia gastric adenocarcinoma compared with NHW men ≥50 years.

“We are hopeful that this comprehensive population-based analysis of contemporary CCR data will serve as a strong impetus for racially/ethnically-focused interventions targeting gastric adenocarcinoma reduction,” the authors write.

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