[Comparative characteristics of somatic risk factors for the development of Tourette syndrome and slowly-progressing schizophrenia in childhood].

The contribution of the environmental risk-factors has been studied in 25 children with Tourette's syndrome and 25 children with sluggish schizophrenia. It has been established that the levels of the severity of the toxicosis in pregnancy, the presence of the nephropathy, neuroinfections of the first year of life were significantly higher in the Tourette's syndrome, than in schizophrenia. Those data are not in line with the speculations about one major dominance gene transmission for the Tourette's syndrome, because genetic contributions in it and in the child schizophrenia are equal. The environmental risk-factors may morbogenic role in the development of Tourette's syndrome.