Abstract: Objective: To analysis the patients’ clinical databases with maxillofacial trauma in Yili area of Xinjiang automatic region, and to explore the epidemiological characteristics of trauma and preventive methods. Methods: The clinical data of patients with maxillofacial trauma hospitalized in the department of oral and maxillofacial surgery from January 2012 to December 2016 in Yili region were collected and analyzed. Results: Among 446 patients, the ratio of male to female was 3.6∶1.0, and ages from 20 to 40 years old (53.36%) was the peak incidence. As to the classification of career, farmer (53.8%) was the highest percentage group. The peak period of the injury period was from August to October (35.4%). Traffic injury (44.2%) was the most common cause of trauma, followed by falls from high places (21%) and violence (21%). Logistic regression analysis showed that the relative risk of facial fractures was higher than that of traffic injuries (OR=0.354, P<0.05). The higher the age, the relative risk of facial fractures increased 1.025 times. The relative risk of mandibular fractures was higher than that of traffic injuries (OR=0.024, P<0.05). Traffic injury was risk factor for mid-face fractures and mandibular fractures. Conclusion: Young and middle-aged people are the most common patients with oral and maxillofacial trauma in Yili area. Traffic injury is the main cause of injury, followed by fall injury and violence. The injury of craniocerebral is the most common in combined injuries. Age and trauma causing may be high risk factors in this area.

Key words: Maxillofacial fracture, Retrospective study, Trauma, Epidemiology