OBJECTIVE: To analyze the epidemiological characters of fresh maxillofacial @entity174 in hospitalized @entity1 by the retrospective study. METHODS: From Jan. 2008 to Dec. 2013, a total of 1 009 @entity1 with fresh maxillofacial @entity174 treated at Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology were investigated. The data were statistically analyzed by SPSS 21.0. RESULTS: The male and female ratio was 2.94:1 and 33.5% of the @entity1 aged from 20 to 30 years. The most common cause of the fresh @entity174 was road traffic accidents (424 cases, 42.0%), followed by tumblings (250 cases, 24.8%) and violence (128 cases, 12.7%). The number of new @entity174 was increasing gradually in recent years. The @entity1 were at peak of 20-29 years old. The mandibular @entity174 was the most frequently seen (536 cases, 53.1%), followed by zygomatic complex @entity174 (233 cases, 23.1%). The simple maxillary @entity174 was rare and usually combined with other @entity174 . @entity128 was the most common one in nerve injuries (144 cases). The most common associated injury was @entity130 (77 cases), followed by @entity764 (65 cases) and @entity542 (57 cases). Associated injuries were mostly caused by car accidents (127 sites), followed by fall (32 sites). Logictic regression analysis showed that fall and tumbling were risk factors of mandibular and condylar @entity174 (OR > 1, P < 0.05), while age was a protective factor (OR > 1, P < 0.05). CONCLUSIONS: Oral and maxillofacial fresh @entity174 most commonly occurred in young @entity1 , and the most common cause of @entity174 was road traffic accidents. Infraorbital nerve was involved frequently. The most common associated injuries was @entity130 .

[A retrospective study of 1 009 @entity1 with oral and maxillofacial fresh XXXX ].

@entity1 :: ('9606', 'Species') :: ['patients', 'people'] @entity174 :: ('MESH:D050723', 'Disease') :: ['fractures', 'fracture'] @entity542 :: ('MESH:D006259', 'Disease') :: ['craniocerebral injury'] @entity128 :: ('MESH:D020209', 'Disease') :: ['Infraorbital nerve injury'] @entity764 :: ('MESH:D013898', 'Disease') :: ['thoracic injury'] @entity130 :: ('MESH:D014947', 'Disease') :: ['extremity injuries']
@entity130 :: (MESH:D014947,Disease) :: ['trauma']
