[Prevalence and chief variants of the course of schizophrenia with a predominance of delusional and hallucinatory-delusional disorders throughout the course of the disease (clinico-epidemiologic study)].

A nonselective group of 971 schizophrenic patients was studied. The development of the disease in these patients was characterized by the prevalence of hallucinative disorders during the whole duration of the disease. This group totalled 19.1% of the whole population of patients. The cases with continuous paranoid schizophrenia totalled 42.4% of the studied group (8.1% of the population). The rest observations formed the continual range between paranoid and attack-like schizophrenia.