- Author
-
Schwartz, M. S.
|
Soroff, H. S.
|
Reiss, E.
|
Artz, C. P.
- Title
- Evaluation of the Mortality and the Relative Severity of Second and Third-Degree Injuries in Burns.
- Report
-
Report 12-56
December 1956
30 p.
- Keywords
-
burns (injuries)
|
mortality
|
fire statistics
|
survival
- Identifiers
- probit analysis of mortality data from the surgical research unit based on total extent of burn; probit data from different institutions; relative severity of second and third-degree injury
- Abstract
- The technic of probit analysis as described by Finney was introduced into the evaluation of burn mortality by Bull and Squire in 1949. The application is based on the original observation of Clarkson and Lawrie in 1946 that mortality in burn injury bears a sigmoid relationship to the area of injury. The sigmoid relationship in turn implies that the increments of percentage mortality with increase of burn area are distributed symmetrically about the burn area with 50 per cent mortality in a bell-shaped curve. The sigmoid and bell-shaped curves are demonstrated in plots of the data on 405 patients from the Surgical Research Unit in figures 1a and 1b.