Oshima A, Hanai A, Fujimoto I
Natl Cancer Inst Monogr. 1979 Nov(53):181-6.
To evaluate a mass screening program for stomach cancer, we followed 32,789 subjects for 6.1 years by means of a record linkage to a population-based cancer registry. The results show that the mortality from stomach cancer among those studied decreased by 9% as compared with the expected number calculated on the basis of the sex- and age-specific rates among the general population. When the study subjects were limited to those aged 40-59 years, the decrease in stomach cancer deaths became more marked, i.e., a 26% decrease was observed. Because this study is not a controlled trial, the results must be interpreted with the reservation that some biases were present in the study subjects.
为评估一项胃癌群体筛查项目，我们通过与基于人群的癌症登记处进行记录链接，对32789名受试者进行了6.1年的跟踪研究。结果显示，与根据一般人群的性别和年龄特异性发病率计算出的预期数量相比，研究对象中胃癌死亡率降低了9%。当研究对象仅限于40 - 59岁的人群时，胃癌死亡人数的减少更为显著，即观察到减少了26%。由于这项研究并非对照试验，因此在解释结果时必须有所保留，因为研究对象中存在一些偏差。
