During the 9-year period from 1980 to 1988, a-total of 108, 609 people underwent group examinations for early detection of cancer of the stomach. Of this number 197 people (0.18%) were found to have contracted gastric cancer. The detection rate followed an upward curve in step with the increasing use of gastroscopes. Of those who underwent surgery, 140 people survived three years post-operatively. By stage, the survival rate was 95.6%(65 cases out of 68) for stage I, 93.3%(28 of 30) for stage II, 82.6%(19 of 23) for stage III, and 10.5%(2 of 19) for stage IV. In 1988 alone, 15, 174 people received mass screenings and 45 stomach cancers were detected (0.297%). The detection rate was high, but it is to be noted that of the 48 people, 18 had been found normal in the previous year's check up, and that five cases of the 18 apparently had escaped the notice of physicians. This fact suggests that more careful examination be needed.
At institutions in 9 areas of all over Japan, epidemiological and clinical surveys and investigations have been performed on the relationship between alcohol drinking and health for inhabitants in agricultural and fishing villages. The ethanol cutaneous patch test showed about 40% ALDH2 defficiency in these subjects. There were remarkable defferences in the drinking behavior between these positive and negative 2 groups. Various factors affecting the drinking behavior of subjects are there congenital diathesis, sexual difference, natural and social differences as well as age and occupation. By drinking, various abnomalities have been observed in various indexes such as medical examinations namely, hepatic functions (γ-GTP, GOT, GTP, etc), lipids (HDL-C, TG, etc), circulating functions (blood pressure, pulse, etc), metabolisms (uric acid, blood sugar, etc), and pancreatic functions. Most of them are risk factors in adult diseases. Accordingly, through collective education for drinking, its effect can be observed earlier and it will be very important to educate individuals for health control.