[Clinico-statistical grouping of patients on the basis of the duration of treatment in psychiatric hospitals].

Nine clinico-statistic groups of patients were distinguished on the basis of the time of inpatient treatment of the non-randomized group of mental patients (n-57328) discharged during one year from the Moscow psychiatric hospitals, bearing in mind the diagnosis, age and the presence of a grave somatic illness. Each of these groups is characterized by the mean period of inpatient treatment, which makes it possible to use them for economic calculations in introduction of the cost accounting into activities of the psychiatric services.