Stomach Cancer in Various Age Groups (Japan) As Detected by Gastric Mass Survey

Abstract

In order to determine the characteristics of stomach cancer in the elderly, statistical analyses were made of 2,366 cases found in a gastric mass survey (group 1) and 194 cases found among 9.196 persons over age 40 observed during 13 years (group 2). For group 1, the average annual incidence of stomach cancer per 100,000 persons by age, and the death rate by age, increased as age advanced. The average annual incidence was 0.19 percent over 18 years and there were almost no changes in the detection rate. For group 2, the death rate per 10,000 persons in the examined group was significantly lower than in the non‐examined group, especially for persons in their 50's or 60's. However, there were no differences in the death rate for persons in their 40's, 70's, and beyond. The rate for surgical resection of cancer and the incidence of early stomach cancer were lower in the elderly; the 5‐year relative survival rate was poor. Thus, the clinical characteristics of stomach cancer in the elderly include the following aspects: 1) in mass surveys, the incidence of stomach cancer is highest in the elderly, especially for men; 2) many cases of stomach cancer are advanced or inoperable; and 3) most of these patients do not undergo examination until they become aware of symptoms related to cancer.

Association between the Persistence of Obesity and the Risk of Gastric Cancer: A Nationwide Population-Based Study

“…Since Helicobacter pylori has been established as class I carcinogen for gastric cancer by the World Health Organization [ 2 ], there have been many studies evaluating risk factors for gastric cancer. Aside from H. pylori , following factors have been revealed so far: advanced age [ 3 ], male sex [ 1 ], smoking [ 4 ], alcohol [ 5 ], low consumption of fresh vegetables [ 6 ], and high salt intake [ 7 ]. Also, low income is highly associated with H. pylori prevalence [ 8 ] which is the single most important risk factor for gastric cancer.…”

Precancerous lesions of the stomach

“…Table 2 reviews 2,180 patients followed up from 1960 to 1971 after detection of gastric ulcer by mass survey examination [33]. Of these, 828 (38%) remained untreated and the other 1,352 (62%) were managed either by medical means (1,125) or surgically (227).…”

Screening of Active Components and Key Targets of Radix Codonopsis in the Treatment of Gastric Cancer

“…Its incidence and mortality rate ranks second among malignant tumors in China, seriously affecting people's quality of life and social and economic development [1]. e occurrence of gastric cancer is mainly related to smoking [2], advanced age [3], heredity [4], and Helicobacter pylori [5]. At present, the main treatment methods of gastric cancer are still surgical resection and chemotherapy [6].…”