**4. Prognostic factors of liver injury in polytraumatic patients**

The average age was 39.6±19.5 years, and 72.8% were male. The average ISS was 31.9±12.1 points. Patients with liver trauma were found to be younger (liver 34.9±15.6; abdomen 37.7±18.2) and more frequently female (66.0% vs. 73.5%). The number of blunt traumas was only slightly less in the liver group (91.8%) than in the non-liver abdominal trauma group (93.5%). The incidence of a primary liver injury according to the criteria mentioned was rather small, with 3.1% in the total group studied (abdomen 5.5%).
