Current state of the Würzburg database for radiotherapy

: Initially the data bank, which serves for the follow-up organization and for scientific studies, is briefly introduced. Then the possible analyses are described. Two types of possible evaluations can be distinguished. For the first type of evaluation, a subprogram has to be developed for every topic. A great number of questions can be answered by assembling the subprograms. These evaluations mostly dispose of a direct access to the data bank, so that the information desired is immediately available. For the second type of evaluation, the features of a group of patients have been determined with the aid of the data bank and have been stored then. A simple questioning language allows the establishment of any condition limiting the patient groups and its transmission to a statistical program package. Some examples are given to describe the possibilities of the statistical program developed especially for medical studies which makes it possible to perform analyses according to the life table method, too.