摘要：We defined curable-duration of gastric cancer as the duration during which a gastric cancer is detectable by screening by contrasted indirect roentogenography and is also curable by therapy, and estimated its distribution using data from a group consisting of 66, 386 employees. The total of observed person-years was 179, 204. The distribution of curable-duration was shown to be M-shaped ; the two peaks were at under 1 year and over 4 years. Consequently it was concluded that one should attend screening by contrasted indirect roentogenography at an interval of 2 or 3 years, and that this will make the screening programs more efficient. J Epidemiol, 1992; 2 : 69-73.
关键词：curable-duration;mass-screening for gastric cancer;contrasted indirect roentogenography;interval of screenings
