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
Highlights
From time immortal, Injury has been mans constant companion
Background: To evaluate penetrating abdominal trauma index (PATI) by means of ROC curve analysis and establish its sensitivity and specificity for predicting the morbidity and mortality in penetrating abdominal trauma. This was a prospective study over an 12-month period, patients with penetrating abdominal trauma who underwent laparotomy were enrolled
PATI was calculated based on operative findings and the outcomes were measured on the basis of complications or mortality in the postoperative period
Summary
In this age of speed, civil conflicts, crimes of passion and road traffic accidents; the incidence of cases of trauma keeps on increasing. Out of several scoring systems available for predicting outcome in trauma, penetrating abdominal trauma index (PATI) is the sole one in its category of penetrating abdominal trauma. It was devised by Moore and colleagues in 1981. It is described as a method for quantifying the risk of complications following penetrating abdominal trauma. This study is being done to evaluate this Instruments behaviour, and study its ability to correctly prognosticate patients using the advantages of logistic regression analysis and ROC curve analysis over the traditional statistical techniques
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