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Abstract Objective To explore the correlated risk factors of the mortality of pelvic fracture patients.Methods We retrospectively analyzed the clinical data of the pelvic fracture patients from January 2013 to January 2018，including age，sex，hospital stays，vital signs，injury severity scale (ISS)，Glasgow coma scale (GCS)，visiting time after injury，type of pelvic fracture，associated injuries，the intravascular embolotherapy and the pelvic fracture fixation.Then we used the logistic regression method to analyze the risk factors of the mortality of pelvic fracture patients.Results This study included 356 pelvic fracture patients totally，47 of them died，the mortality rate was 13.2%.The result of logistic regression showed that shock index (OR＝23.246，CI：11.732~76.758)，lowest PaO2/FiO2 (OR＝37.926，CI：18.347~87.237)，blood transfusion in 24 hours (OR＝3.236，CI：1.232~10.356)，ISS (OR＝85.116，CI：35.011~115.326)，GCS(OR＝15.231，CI：5.785~26.234)，associated head injury(OR＝12.322，CI：6.14329.579)，associated abdomen injury(OR＝6.213，CI：2.260~15.237)，associated perineum injury(OR＝1.314，CI：1.072~4.213)，associated spine injury(OR＝4.526，CI：1.127~16.349)，associated limbs injury(OR＝8.012，CI：2.104~32.768)，open fracture pelvis (OR＝12.359，CI：3.273~41.786)，Tile A type (OR＝2.783，CI：1.126~5.382) and Tile C type (OR＝6.917，CI：1.245~13.627) were the risk factors of the mortality of pelvis fracture.Conclusion serious trauma，blood transfusion in 24 hours，shock，coma and associated head，abdomen，perineum，spine as well as limbs injuries are the risk factors of the mortality of pelvis fracture.
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