Abstract
Statistical studies were made on 8, 453 operation cases of the gastric cancer collected by Hokkaido Cancer Research Center from total number of 349 main hospitals in Hokkaido and the results were compared with those from all over the country.
As far as the ratio of gastrectomy (79.4% on the average), total gastrectomy (17.5% on the average), ratio of the early stage cancer (18.396 on the average) and ration of B I anastomosis which was considered to be the ideal reconstruction method were concerned, the results showed the gradual improvement for 5 years (1963-1967).
Compared with the results from all over the country, all kinds of factors showed slightly lower rates. However, if the fact that the hospitals from all over the country except Hokkaido were equally large in scale was taken into consideration, our Hokkaido cases are by no means regarded to be on a low level.
