title: 1,454 mandibular fractures: a 3-year study in a hospital in Belo Horizonte, Brazil.
abstract: OBJECTIVE
  To analyze the mandibular fractures which presented over a 3-year period at an emergency hospital in Belo Horizonte, Brazil.
  
  
  METHODS
  The data collected included age, sex, aetiology, date of trauma, associated maxillofacial trauma, anatomic site of fracture, and treatment. The analysis involved descriptive statistics and the Pearson's chi-square, Bonferroni, Kolmogorov-Smirnov, Kruskal-Wallis and Mann-Whiney tests, and analysis of variance.
  
  
  RESULTS
  There were 1,454 mandibular fractures in 1,023 patients. Males of 20-29 years of age sustained the majority of fractures. Traffic accidents were the major causes of trauma, followed by violence and falls. A high incidence of fractures in women due to violence was observed. The condyle region was found to be the most common fracture site in the mandible. A surgical approach was performed in most cases. There were more accidents causing mandibular fractures on the weekends.
  
  
  CONCLUSIONS
  The individuals with mandibular fractures due to "traffic accidents" were younger than those due to "violence" and "falls". There was a significant statistical association between age and aetiology as well as between sex and aetiology of mandibular fractures.
authors: Maria Amélia Lins Hospital, Belo Horizonte, Brazil. brunochrcanovic@hotmail.com
authors: Bruno Ramos
authors: BR
authors: Chrcanovic
authors: Mauro Henrique Nogueira Guimarães
authors: MH
authors: Abreu
authors: Belini
authors: B
authors: Freire-Maia
authors: Leandro Napier
authors: LN
authors: Souza
mesh_terms: D000058:Accidental Falls / Q000706:statistics & numerical data; D000063:Accidents, Traffic / Q000706:statistics & numerical data; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D001938:Brazil / Q000453:epidemiology; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D005260:Female; D005592:Fracture Fixation / Q000379:methods / Q000706:statistics & numerical data; D006801:Humans; D007223:Infant; D008297:Male; D008335:Mandibular Condyle / Q000293:injuries; D008337:Mandibular Fractures / Q000150:complications / Q000453:epidemiology* / Q000209:etiology / Q000628:therapy; D008440:Maxillary Fractures / Q000150:complications / Q000453:epidemiology; D008875:Middle Aged; D012189:Retrospective Studies; D012737:Sex Factors; D018709:Statistics, Nonparametric; D014754:Violence / Q000706:statistics & numerical data; D055815:Young Adult; D015051:Zygomatic Fractures / Q000150:complications / Q000453:epidemiology