ANALYSIS OF ABILITY OF PENETRATING ABDOMINAL TRAUMA INDEX (PATI) TO CORRECTLY PROGNOSTICATE THE PENETRATING ABDOMINAL TRAUMA PATIENTS

Abstract

Background: To evaluate PATI by means of ROC curve analysis and establish its sensitivity and specificity for predicting the morbidity and mortality in penetrating abdominal trauma.

Methods: This was a prospective study over an 12-month period, patients with penetrating abdominal trauma who underwent laparotomy were enrolled. Initial assessment of the patients was done following the ATLS guidelines. Patients were stratified on the basis of those who developed complications, no complications and postoperative mortality. PATI was calculated based on operative findings and the outcomes were measured on the basis of complications or mortality in the postoperative period.

Results: Logistic regression analyses allow evaluations on how an instrument’s performance can be graded with respect to the relative predictive power of a study variable on the effect of a specific characteristic outcome. ROC curve analysis evaluates an instrument’s performance in a comprehensive manner; as results are summarized in a simple way, this methodology avoids data loss and simplification.

Conclusion: In this study it was observed that with increasing PATI score, rate of complications increased.

Keywords: Penetrating Abdominal Trauma Index, ROC curve, Death