Urolithiasis pp 907-909 | Cite as

Statistical Results of the Analysis of More than 7,500 Urinary Calculi

  • M. A. H. Gebhardt
  • H.-P. Bastian


Over 7,500 analyses of urinary calculi were made with various x-ray diffraction techniques1–4. For very small specimens the “Gandolfi” chamber was used. A little bit larger stones were exam- inated with the Debye-Scherrer-method. Normally diffractometer methods with monochromators were used. The results were grouped in intervals of 5% in weight, if only a trace of a phase could be found, it was set to 0%. Over 7,500 stone analyses were processed statistically into tables of the following: 1) frequency of occurrence, 2) average stone, 3) average quantity, and 4) stone types. The following source descriptions for each stone were also recorded: 1) sex, 2) localization in kidney, ureter or bladder, 3) profession of the stone former, 4) age group of the stone former, and 5) housing region of the stone former. Some results are shown in the following tables without comment.


Acid Urate Calcium Phosphate Large Stone Crystal Type Urinary Calculus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    M. Gebhardt and H. P. Bastian, Fortschr. Urol. u. Nephrol. 9:296 (1977).CrossRefGoogle Scholar
  2. 2.
    M. A. H. Gebhardt, H. P. Bastian, and W. Vahlensieck, Fortschr. Urol. u. Nephrol. 14:315 (1979).CrossRefGoogle Scholar
  3. 3.
    K.-F. Seifert and M. Gebhardt, Fortschr. Urol. u. Nephrol. 14:275 (1979).CrossRefGoogle Scholar
  4. 4.
    M. Gebhardt, in: “Epidemiologie Allgemeine Kausal — und Formalgenese Diagnostik, Urolithiasis I, ” Springer-Verlag, Berlin, Heidelberg, New York (1979).Google Scholar

Copyright information

© Springer Science+Business Media New York 1981

Authors and Affiliations

  • M. A. H. Gebhardt
    • 1
  • H.-P. Bastian
    • 1
  1. 1.Mineralogisch-Petrologisches Institut and MuseumBonnWest Germany

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