[Changes in delusional psychoses. A historical transcultural comparison (author's transl)].

A historical transcultural comparison of paranoid psychoses (ICD 295.3, 297. 0-9) was done by evaluating the data of 200 case histories (I: 100 from 1911, II: 100 from 1973). An interrater reliability test was performed. 1. Stable delusions were: delusions of reference, religious delusions, delusions of persecution. 2. There was a significant increase in hypochondriacal delusions. 3. Megalomania and erotomania decreased. 4. There is in the "old" and "new" group a significant correlation between megalomania and the male sex. 5. The significant correlation between erotomania and the female sex found in the "old" group could not be found in the "new" group. 6. Constancy and change of delusion is due to both sexes, differing in degree, in part contrarotating. 7. The decrease of "sex-specific" delusions (megalomania and erotomania) is due to the sex concerned. 8. With increasing age there is a reduction of delusion themes in group II: delusions of special descent, paranoid identity change, erotomania were not found after age 30. Querulant paranoia did not occur. In group I querulant paranoia did not appear before age 30. 9. There was a significant correlation between megalomania and the item "development in rural country". 10. In our material there was no correlation between delusion and intelligence and religious confession. 11. Paranoid ideas of hypochondriasis and persecution show changes in the thematics (organs, disease, means of persecution) subject to time. 12. A tendency to change of content of the main delusion is discussed.