Selected results of retrieval and statistics from radiation oncology greater area database (ROGAD). From 2nd data collection (1992) to 6th data collection (1997)

Case distribution in terms of ICD-O code for primary tumor region expressed by 286 tables and 286 figures were worked out, but only 26 figures were selected for presentation here. Chronological variation of cases distribution during those six years were found and stated as follow as examples. Primary response in ''head and neck'' and ''lungs and bronchus'' showed improvement both in terms of complete response (CR) and partial response (PR) in those 6 years. As for female genital organs, both CR and alive with cancer'' showed improvement. The averaged figures for all topographical regions for these 7,057 cases reveal that CR, CR+PR, ''alive with cancer'' and ''alive without cancer'' increased relatively, and we can state that total contribution of radiotherapy itself is increasing. The rate of chemotherapy combined with radiotherapy had increased and that of surgery combined with radiotherapy had decreased in the primary tumor region of both esophagus and female genital organs. Cases of radiotherapy alone without any other treatment have a tendency to increase in lungs and bronchus. Ratios of primary regions of lungs and bronchus, liver, biliary tract and pancreas, bones and hematopoietic systems, breast and stomach and colon compared with that of total topographic regions involving other regions are found to have increased. In contrast, female genital organs and head and neck regions decreased on a relative basis. Change of performance status between at radiotherapy start and at radiotherapy termination for primary regions of lungs and bronchus and breast searched in 1996 tells that radiotherapy contributed to improve PS as far as the primary response is concerned. But change of PS from the time of radiotherapy termination of treatment in the two topographical regions mentioned above in February of 1996 to the time of follow up survey in June of 1997, which was 16 months after radiotherapy termination, dose not indicate any improvement. (K.H.)