How many died after cutting, and how many after crushing? Civiale's figures disputed

Positions

1. Herr 2009

   5,715 perineal lithotomies with 1,141 deaths (20 per cent) and about 100 more left with lasting infirmity; 257 lithotrity patients with 6 deaths (2.3 per cent).

   Sources

   1. H. W. Herr, Civiale, stones and statistics: the dawn of evidence-based medicine, BJU Int 2009;104(3):300-302 Secondary

2. Belinaye 1837, as cited by Mazur 2014

   Lithotomy: 1,024 deaths in 5,443. Lithotrity: 5 deaths in 245.

   Sources

   1. Mazur 2014, citing Belinaye 1837 (figures for Civiale's comparison) Secondary

3. English Wikipedia

   Lithotomy: 1,024 deaths in 5,443. Lithotrity: 7 deaths in 307.

   Sources

   1. English Wikipedia, figures for Civiale's lithotomy and lithotrity comparison Secondary

Evidence

Three sets of numbers circulate, and the kit could not check them against the 1835 Comptes rendus. They differ in the size of both series and in the lithotrity deaths, but all give about one in five dying after lithotomy and one in forty to fifty after lithotrity.

Current standing

Unresolved in detail. The film uses only the ratios, "about one patient in five" against "about one in forty", which every version supports. The screenplay's note records the numbers as disputed and the ratios as safe.

All sources