Background: In more than half of cases of chest trauma, patients also have head injuries, abdominal injuries or polytrauma. Aim: The aim of the present study was to compare open and closed treatment for chest injuries according to mortality, hospitalization, trauma indices and physiological data. Method: Three hundred sixty-seven patients (293 males and 74 females) with an Anatomic Injury Scale (AIS) score of 2 or more for thoracic trauma were evaluated. The following aspects were evaluated associations between treatment (open and closed) for chest injury, discharge from hospital, hospitalization and death, Trauma indices Revised Trauma Score (RTS), Injury Severity Score (ISS) and TRISS, Blood pressure, diastolic pressure, respiratory rate and pulse. Results: No significant associations were found between the type of treatment (open or closed procedure) and discharge from hospital, hospitalization or death (p = 0.3).No significant associations were found between the type of treatment (open or closed procedure) and the trauma indices, blood pressure, pulse or respiratory rate.