[International study of schizophrenia based on a WHO program. Incidence of schizophrenia].

The article presents data on the incidence of schizophrenia in one of the Moscow districts, which are compared with the findings obtained in 7 centres in different countries which used the same procedure of the investigation. Differences in the rate of morbidity between different countries were detected only when a broad diagnostic approach was employed, there being no such difference when narrow diagnostic criteria of schizophrenia were used, which indicates poor correlation between cultural factors and the development of schizophrenia with first-rank symptoms. The use of traditional clinical symptomatology has made it possible to reveal that the rate of different syndromes of manifest schizophrenia depends on sex and age.