[Study of the incidence of single-attack course of schizophrenia based on epidemiological data].

: A non-randomized sample of patients suffering from attack-like schizophrenia and registered at the PND of 3 districts of Moscow served as materials for investigation. There were altogether 3576 persons. Patients living in the Proletarsky district were subjected to a catamnestic study. By the moment of examination they had suffered one attack. In view of the fact that the occurrence of the second attack obeys the law of exponential distribution, it was determined that the mono-attack course was recorded in 26.2% of all the registered patients with attack-like schizophrenia. It was shown that the proportion of patients with mono-attack schizophrenia increased with the disease standing. The data provide an opportunity of the probability forecasting of the disease stabilization after the first attack and can be used in the solution of the problems of the further disease course and registration of this patients, group.