fuzzy and medicine

Ernesto Landera (rnt@mpdisi.gov.ar)
Tue, 18 Jun 1996 16:56:43 +0200



The List:
I'm working with the hospital administration theory (born in Yale U.) that
the case-mix of all the illness for any patient could be related to one
of 600 Diagnostic Related Group Coefficients (DRG), referred to a specific
coefficient and days of stay.
The coefficient is used to calculate the relative cost of helth care and for
measuring the performance of the hospital administration.

The base points of my theory is:
1) The set of patients with some set of illness and coming from some social
set is a "fuzzy set".
2) The set of point 1) depends of the age and sex (crispy sets).
3) All the illness are "fuzzy sets"
4) All the social sets are "fuzzy sets".
5) The DRG are uncertainly coefficients, not crispy sets.(Is the result of
statistical probability, the principal questionable method for the evident
sum of fuzzy factors).
6) The DRG could be false sets for any performance ponderation.

To ponderate the relative cost and health care performance I suggest
to research the application of hospital software with fuzzy logic engine
and expert system for data base.
Anyhow, the input of any hospital software is the more noisy and distorted
data treatment difficulty, because the fuzzy nature of the morbidity,
co-morbidity and treatment definitions, at sight of the MD.

I'll be grateful for any comment.

Ernesto Landera
rnt@mpdisi.gov.ar