一、胃癌早期诊断与胃癌普查我国胃癌发病率虽然占恶性肿瘤中第一位,但早期诊断率低,一般在4～6%左右。近些年来,随着诊断水平的提高,早期胃癌诊断率有所提高,可达8～11%,个别单位在一定时期也可高达19～21%,但不能持续恒定。日本在早期胃癌的诊断上起步较早,其诊断率在世界上也是最高的,并能较稳定地保持在这一水平上,这主要归功于大规模人群普查。20 First, early diagnosis of gastric cancer and gastric cancer survey Although the incidence of gastric cancer in China accounted for the first in the malignant tumor, but the early diagnosis rate is low, generally about 4 to 6%. In recent years, with the improvement of diagnostic level, the diagnostic rate of early gastric cancer has increased by 8 to 11%, and individual units can reach as high as 19 to 21% in a certain period, but it cannot be constant. Japan started earlier in the diagnosis of early gastric cancer, and its diagnostic rate is also the highest in the world, and can be maintained at this level more stably. This is mainly due to the large-scale population survey. 20