[The means for evaluating and optimizing antitubercular chemotherapy as a measure to prevent and combat tuberculosis in county territory].

The paper reports on 25 possible failure factors of antituberculosis chemotherapy in 262 cases recorded in 1982 and followed for 3 years. 58 of them were failures, relapses or bacteriological relapses under treatment. The failure factors analysed were subjected to a mathematical modelling method that yielded a number of codified predicting parameters. This prognostic calculation may be an efficient method for optimizing chemotherapy, reducing the failure rate.