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- Title
Results of Radiotherapy in the National Cancer Center Hospital—Second Report of the National Cancer Center Radiotherapy Computer System.
- Authors
UMEGAKI, YOICHIRO; SAKUDO, MOTOTAKE; AMARI, HIROKO; IIDA, KOYO
- Abstract
Results of radiotherapy in the National Cancer Center Hospital during 1962–1970 were analysed by using the National Cancer Center Radiotherapy Computer System which had been developed by the authors. More than a half of the total cancer cases treated in the hospital were given some kind of radiotherapy. The overall five-year survival rate of radiotherapy cases corrected with a life table method were 38.4% for total cases, 44.6% for radically treated cases and 14.6% for palliatively treated cases. Combined treatment by radiation and surgery showed better results such as 48.3% for preoperative and 57.8% for postoperative radiotherapy cases.The following factors were analysed in terms of the five-year survival rate: age, sex, stage, histology and double-primary cancer.In general, female cases showed much better prognosis than that of male cases. Five-year survival rate showed its peak at 30–40 years of age and was low at lower or higher ages. Inverse correlationships by age were observed between the incidence of cancer and the survival rate after treatment, and the value of correlation coefficient was larger in males and smaller in females.The age dependency of incidence and prognosis of cancer strongly suggested the important role of host resistance in the treatment and prevention of cancer.
- Publication
Japanese Journal of Clinical Oncology, 1974, Vol 4, Issue 1, p1
- ISSN
0368-2811
- Publication type
Article