Background : The aim of this study is evaluation of the relation between Systemic Inflammatory Response Syndrome (SIRS) score and mortality and length of hospital stay in trauma patients.

Materials and Methods: Seventy-three trauma patients admitted to Al- Zahra hospital in Isfahan medical university were enrolled to this study. The injury severity score and SIRS of each patient were calculated. In all patients, length of hospital stay, age, sex, trauma mechanism, and vital signs were recorded and blood samples obtained. Patients were followed until their discharge or death. Logistic regression test was used for statistical analysis.

Results: Forty three percent of 73 patients had positive SIRS markers. Mean age of patients was 25.09±14.35 years. Trauma mechanism was blunt in 84% of patients. Mean of Injury severity and SIRS were 12.09±10.15 and 1.3±0.07 respectively. Mean length of hospital stay was 5.6±5.2 days. There is a significant correlation between SIRS and length of hospital stay (p= 0.03), and SIR ُ S and death (P=0.01). WBC count has a significant correlation with length of stay (p= 0.04) and mortality (p =0.02).

Conclusion: Our findings suggest that admission SIRS score of trauma patients may be used as a predictor of outcome.