Nastaran Heydari Khayat - Instructor in Nursing, Department of Nursing, Iranshahr Nursing and Midwifery School, Zahedan University of Medical Sciences, Iranshahr, Iran
Hasan Sharifi Poor - Instructor in Nursing, Department of Nursing, Iranshahr Nursing and Midwifery School, Zahedan University of Medical Sciences, Iranshahr, Iran
Neda Mohammadinia - Instructor in Nursing, Department of Nursing, Iranshahr Nursing and Midwifery School, Zahedan University of Medical Sciences, Iranshahr, Iran

Background: The Trauma is one of the most important health problems and a leading cause of death in 4th decade of life. Mortality due to accidents has a critical situation in Iran and mortality rate is increasing10-15% annually. Aim: To assess the relationship of shock index with trauma patient’s mortality after first 24 hours of admission at Khatam-al-Anbia Hospital in Iranshahr. Method A cross-sectional design was carried out on 240 traumatic patients to predict mortality of trauma patients after 24 hours of hospitalization at Khatam-Alanbia Hospital in Iranshahr. The shock Index is calculated by dividing heart rate on systolic blood pressure. The normal range is 0.5-0.7. SI was calculated at the beginning of admission to hospital and after 24 hours mortality was assessed. Data were analyzed with SPSS Software version 15, using logistic regression and Chi-square test. Results: 74.2% of trauma was due to accidents from which 38.3% experienced multi trauma. 2.1% of patients expired during 24 hours of admission. The minimum and maximum scores and mean of SI were 0.31, 59.1 and 0.71, respectively. There was a significant relationship between SI and mortality of trauma patients within 24 hours of hospitalization (P=0/000). The highest rate of mortality was seen in patients with SI higher than 0.9. Conclusion: The SI is a useful instrument for mortality prediction. So it is recommended to reduce errors in mortality prediction SI to be used along with other kinds of triage instruments.

Trauma, SI (shock index), Mortality