An analysis of a representative epidemiological sample of patients with endogenic psychoses (schizophrenia and MDP) revealed statistical distribution of some parameters of the disease (risk of the development of the disease in relation to age, a number of previous attacks, as well as distribution of patients by the duration of paroxysms and remissions). The authors believe that a collation of the tabulated data with the known mathematical models makes it possible to come to understanding some aspects of the pathogenesis of endogenic psychoses.
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