SURGERY: WOUNDS, JOINTS, CRIBBERS, AND ABDOMEN 3. Results and Discussion
The variables included in the final clinical model were lethargy, temperature increase from 38°C, gastric reflux 5 to 10 L, and normal rectal findings. All variables except gastric reflux 5 to 10 L were positive predictors of infectious colic. Diagnostic specificity and sensitivity was 98% and 57%, respec-
tively. When serum amyloid A concentration in se- rum was added to the model on the basis of clinical evaluation, the specificity and sensitivity improved to 98% and 64%, respectively. No additional blood or peritoneal fluid variables improved the model significantly. The models had a satisfying integrity and diagnostic performance when validated.
